diff --git a/sky130/Makefile.in b/sky130/Makefile.in
index 46de4b4..2e805da 100644
--- a/sky130/Makefile.in
+++ b/sky130/Makefile.in
@@ -390,6 +390,8 @@
 	${STAGE} -source ./custom -target ${STAGING_PATH}/${SKY130A} \
 		-verilog %l/verilog/*.v \
 		-cdl %l/cdl/*.cdl \
+		-gds %l/gds/*.gds \
+		-lef %l/lef/*.lef compile-only \
 		-library general sky130_fd_io |& tee -a ${SKY130A}_install.log
 	# Install all SkyWater digital standard cells.
 	${STAGE} -source ${SKYWATER_PATH} -target ${STAGING_PATH}/${SKY130A} \
diff --git a/sky130/custom/sky130_fd_io/cdl/sky130_ef_io.cdl b/sky130/custom/sky130_fd_io/cdl/sky130_ef_io.cdl
index 863037a..bd40bde 100644
--- a/sky130/custom/sky130_fd_io/cdl/sky130_ef_io.cdl
+++ b/sky130/custom/sky130_fd_io/cdl/sky130_ef_io.cdl
@@ -1,92 +1,101 @@
-* Power pads library (sky130 power pads + overlays)
+* Power pads library (sky130 power pads + overlays) sky130_ef_io
 * Includes corner and fill cell subcircuits
 
 .SUBCKT sky130_ef_io__vdda_hvc_pad
-+ amuxbus_a amuxbus_b drn_hvc src_bdy_hvc
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_HVC SRC_BDY_HVC
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vdda_lvc_pad
-+ amuxbus_a amuxbus_b drn_lvc1 drn_lvc2 src_bdy_lvc1 src_bdy_lvc2
-+ bdy2_b2b vssi
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_LVC1 DRN_LVC2 SRC_BDY_LVC1 SRC_BDY_LVC2
++ BDY2_B2B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vddio_hvc_pad
-+ amuxbus_a amuxbus_b drn_hvc src_bdy_hvc
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_HVC SRC_BDY_HVC
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vddio_lvc_pad
-+ amuxbus_a amuxbus_b drn_lvc1 drn_lvc2 src_bdy_lvc1 src_bdy_lvc2
-+ bdy2_b2b vssi
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_LVC1 DRN_LVC2 SRC_BDY_LVC1 SRC_BDY_LVC2
++ BDY2_B2B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vccd_hvc_pad
-+ amuxbus_a amuxbus_b drn_hvc src_bdy_hvc
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_HVC SRC_BDY_HVC
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vccd_lvc_pad
-+ amuxbus_a amuxbus_b drn_lvc1 drn_lvc2 src_bdy_lvc1 src_bdy_lvc2
-+ bdy2_b2b vssi
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_LVC1 DRN_LVC2 SRC_BDY_LVC1 SRC_BDY_LVC2
++ BDY2_B2B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vssa_hvc_pad
-+ amuxbus_a amuxbus_b drn_hvc src_bdy_hvc
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_HVC SRC_BDY_HVC
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vssa_lvc_pad
-+ amuxbus_a amuxbus_b drn_lvc1 drn_lvc2 src_bdy_lvc1 src_bdy_lvc2
-+ bdy2_b2b vssi
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_LVC1 DRN_LVC2 SRC_BDY_LVC1 SRC_BDY_LVC2
++ BDY2_B2B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vssio_hvc_pad
-+ amuxbus_a amuxbus_b drn_hvc src_bdy_hvc
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_HVC SRC_BDY_HVC
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vssio_lvc_pad
-+ amuxbus_a amuxbus_b drn_lvc1 drn_lvc2 src_bdy_lvc1 src_bdy_lvc2
-+ bdy2_b2b vssi
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_LVC1 DRN_LVC2 SRC_BDY_LVC1 SRC_BDY_LVC2
++ BDY2_B2B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vssd_hvc_pad
-+ amuxbus_a amuxbus_b drn_hvc src_bdy_hvc
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_HVC SRC_BDY_HVC
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__vssd_lvc_pad
-+ amuxbus_a amuxbus_b drn_lvc1 drn_lvc2 src_bdy_lvc1 src_bdy_lvc2
-+ bdy2_b2b vssi
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B DRN_LVC1 DRN_LVC2 SRC_BDY_LVC1 SRC_BDY_LVC2
++ BDY2_B2B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__corner_pad
-+ amuxbus_a amuxbus_b 
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B 
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__com_bus_slice
-+ amuxbus_a amuxbus_b
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__com_bus_slice_1um
-+ amuxbus_a amuxbus_b
-+ vssa vdda vswitch vddio_q vcchib vddio vccd vssio vssd vssio_q
++ AMUXBUS_A AMUXBUS_B
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
+.ENDS
+
+.SUBCKT sky130_ef_io__com_bus_slice_5um
++ AMUXBUS_A AMUXBUS_B
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
+.ENDS
+
+.SUBCKT sky130_ef_io__com_bus_slice_10um
++ AMUXBUS_A AMUXBUS_B
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
+.ENDS
+
+.SUBCKT sky130_ef_io__com_bus_slice_20um
++ AMUXBUS_A AMUXBUS_B
++ VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO VSSD VSSIO_Q
 .ENDS
 
 .SUBCKT sky130_ef_io__gpiov2_pad
-+ in_h pad_a_noesd_h pad_a_esd_0_h pad_a_esd_1_h
-+ pad dm<2> dm<1> dm<0> hld_h_n in inp_dis ib_mode_sel enable_h enable_vdda_h
-+ enable_inp_h oe_n tie_hi_esd tie_lo_esd slow vtrip_sel hld_ovr
-+ analog_en analog_sel enable_vddio enable_vswitch_h analog_pol out
-+ amuxbus_a amuxbus_b vssa vdda vswitch vddio_q vcchib vddio vccd vssio
-+ vssd vssio_q
++ IN_H PAD_A_NOESD_H PAD_A_ESD_0_H PAD_A_ESD_1_H
++ PAD DM[2] DM[1] DM[0] HLD_H_N IN INP_DIS IB_MODE_SEL ENABLE_H ENABLE_VDDA_H
++ ENABLE_INP_H OE_N TIE_HI_ESD TIE_LO_ESD SLOW VTRIP_SEL HLD_OVR
++ ANALOG_EN ANALOG_SEL ENABLE_VDDIO ENABLE_VSWITCH_H ANALOG_POL OUT
++ AMUXBUS_A AMUXBUS_B VSSA VDDA VSWITCH VDDIO_Q VCCHIB VDDIO VCCD VSSIO
++ VSSD VSSIO_Q
 .ENDS
diff --git a/sky130/custom/sky130_fd_io/gds/sky130_ef_io.gds b/sky130/custom/sky130_fd_io/gds/sky130_ef_io.gds
new file mode 100644
index 0000000..3457440
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/gds/sky130_ef_io.gds
Binary files differ
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_10um.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_10um.lef
new file mode 100644
index 0000000..86e1f68
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_10um.lef
@@ -0,0 +1,285 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__com_bus_slice_10um
+  CLASS PAD SPACER ;
+  FOREIGN sky130_ef_io__com_bus_slice_10um ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 10.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 10.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 51.090 10.000 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 10.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 46.330 10.000 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 10.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 10.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 10.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.800 10.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 10.000 38.150 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 45.700 10.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 54.370 10.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 45.700 10.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 34.800 10.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 34.700 10.000 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 10.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 10.000 16.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 13.000 10.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 12.900 10.000 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 10.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 10.000 33.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 29.950 10.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 29.850 10.000 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 10.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 10.000 66.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 62.150 10.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 62.050 10.000 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 10.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 10.000 5.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 0.100 10.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 0.000 10.000 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 10.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 10.000 22.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 68.000 10.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 17.850 10.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 17.750 10.000 22.400 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 10.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 10.000 11.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 6.950 10.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 6.850 10.000 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 10.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 10.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 173.750 10.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 23.900 10.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 23.800 10.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 173.750 10.000 197.965 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 10.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 10.000 44.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 39.650 10.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 39.550 10.000 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 10.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 10.000 60.650 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.000 56.300 10.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 9.000 56.200 10.000 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER met4 ;
+        RECT 0.000 66.900 10.000 197.965 ;
+        RECT 0.000 61.050 10.000 61.650 ;
+        RECT 0.000 55.100 10.000 55.800 ;
+        RECT 0.000 49.710 10.000 50.690 ;
+      LAYER met5 ;
+        RECT 2.600 68.000 7.400 92.950 ;
+  END
+END sky130_ef_io__com_bus_slice_10um
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_1um.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_1um.lef
new file mode 100644
index 0000000..3da568d
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_1um.lef
@@ -0,0 +1,175 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__com_bus_slice_1um
+  CLASS PAD SPACER ;
+  FOREIGN sky130_ef_io__com_bus_slice_1um ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 1.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.000 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.000 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.800 1.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.000 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 1.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 1.000 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.000 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.000 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.000 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.000 22.400 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.000 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 173.750 1.000 197.965 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.000 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.000 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER met4 ;
+        RECT 0.000 66.900 1.000 197.965 ;
+        RECT 0.000 61.050 1.000 61.650 ;
+        RECT 0.000 55.100 1.000 55.800 ;
+        RECT 0.000 49.710 1.000 50.690 ;
+  END
+END sky130_ef_io__com_bus_slice_1um
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_20um.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_20um.lef
new file mode 100644
index 0000000..fe3e2c8
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_20um.lef
@@ -0,0 +1,285 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__com_bus_slice_20um
+  CLASS PAD SPACER ;
+  FOREIGN sky130_ef_io__com_bus_slice_20um ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 20.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 20.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 51.090 20.000 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 20.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 46.330 20.000 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 20.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 20.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 20.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.800 20.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 20.000 38.150 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 45.700 20.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 54.370 20.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 45.700 20.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 34.800 20.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 34.700 20.000 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 20.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 20.000 16.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 13.000 20.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 12.900 20.000 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 20.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 20.000 33.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 29.950 20.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 29.850 20.000 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 20.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 20.000 66.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 62.150 20.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 62.050 20.000 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 20.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 20.000 5.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 0.100 20.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 0.000 20.000 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 20.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 20.000 22.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 68.000 20.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 17.850 20.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 17.750 20.000 22.400 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 20.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 20.000 11.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 6.950 20.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 6.850 20.000 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 20.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 20.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 173.750 20.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 23.900 20.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 23.800 20.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 173.750 20.000 197.965 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 20.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 20.000 44.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 39.650 20.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 39.550 20.000 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 20.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 20.000 60.650 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.000 56.300 20.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.000 56.200 20.000 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER met4 ;
+        RECT 0.000 66.900 20.000 197.965 ;
+        RECT 0.000 61.050 20.000 61.650 ;
+        RECT 0.000 55.100 20.000 55.800 ;
+        RECT 0.000 49.710 20.000 50.690 ;
+      LAYER met5 ;
+        RECT 2.600 68.000 17.400 92.950 ;
+  END
+END sky130_ef_io__com_bus_slice_20um
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_5um.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_5um.lef
new file mode 100644
index 0000000..c2bf694
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__com_bus_slice_5um.lef
@@ -0,0 +1,283 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__com_bus_slice_5um
+  CLASS PAD SPACER ;
+  FOREIGN sky130_ef_io__com_bus_slice_5um ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 5.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 5.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 51.090 5.000 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 5.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 46.330 5.000 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 5.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 5.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 5.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.800 5.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 5.000 38.150 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 45.700 5.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 54.370 5.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 45.700 5.000 46.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 34.800 5.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 34.700 5.000 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 5.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 5.000 16.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 13.000 5.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 12.900 5.000 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 5.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 5.000 33.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 29.950 5.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 29.850 5.000 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 5.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 5.000 66.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 62.150 5.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 62.050 5.000 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 5.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 5.000 5.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 0.100 5.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 0.000 5.000 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 5.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 5.000 22.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 68.000 5.000 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 17.850 5.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 17.750 5.000 22.400 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 5.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 5.000 11.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 6.950 5.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 6.850 5.000 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 5.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 5.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 173.750 5.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 23.900 5.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 23.800 5.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 173.750 5.000 197.965 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 5.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 5.000 44.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 39.650 5.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 39.550 5.000 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 5.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 5.000 60.650 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 4.000 56.300 5.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 4.000 56.200 5.000 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER met4 ;
+        RECT 0.000 66.900 5.000 197.965 ;
+        RECT 0.000 61.050 5.000 61.650 ;
+        RECT 0.000 55.100 5.000 55.800 ;
+        RECT 0.000 49.710 5.000 50.690 ;
+  END
+END sky130_ef_io__com_bus_slice_5um
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__corner_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__corner_pad.lef
new file mode 100644
index 0000000..6b33d36
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__corner_pad.lef
@@ -0,0 +1,384 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__corner_pad
+  CLASS ENDCAP TOPRIGHT ;
+  FOREIGN sky130_ef_io__corner_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 200.000 BY 204.000 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 57.125 22.910 60.105 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 53.125 0.000 56.105 26.910 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 52.365 20.935 55.345 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 48.365 0.000 51.345 20.875 ;
+    END
+  END AMUXBUS_B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 51.735 23.155 60.735 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.630 56.020 0.640 56.030 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 40.835 1.335 44.085 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.735 19.575 52.065 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 40.735 1.335 44.185 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 55.645 21.550 56.825 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 60.405 23.175 60.735 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 36.840 0.000 40.085 1.270 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 47.735 0.000 56.735 27.155 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 51.285 0.630 51.295 0.640 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 56.405 0.000 56.735 27.175 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 51.645 0.000 52.825 21.555 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 36.735 0.000 40.185 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 47.735 0.000 48.065 23.575 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 19.035 1.470 22.285 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 18.935 1.470 22.385 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 15.035 0.000 18.285 1.255 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 14.935 0.000 18.385 1.255 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 35.985 1.385 39.235 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 35.885 1.385 39.335 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 31.985 0.000 35.235 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 31.885 0.000 35.335 1.270 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.185 1.480 72.435 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.085 1.480 72.535 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 64.185 0.000 68.435 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 64.085 0.000 68.535 1.270 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.135 2.350 11.385 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.035 2.350 11.485 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 2.135 0.000 7.385 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 2.035 0.000 7.485 1.270 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 74.035 2.645 98.985 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.885 1.525 28.335 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.785 1.525 28.435 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 74.035 2.645 99.000 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 19.885 0.000 24.335 1.270 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 70.035 0.000 94.985 1.855 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 70.035 0.000 95.000 1.855 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 19.785 0.000 24.435 1.270 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 12.985 3.785 17.435 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.885 3.785 17.535 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 8.985 0.000 13.435 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 8.885 0.000 13.535 1.270 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.935 1.600 34.385 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.835 1.600 34.485 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 179.785 1.435 204.000 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.630 194.865 0.640 194.875 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 25.935 0.000 30.385 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 25.835 0.000 30.485 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 175.785 0.000 200.000 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 190.865 0.630 190.875 0.640 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.685 1.475 50.135 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.585 1.475 50.235 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 41.685 0.000 46.135 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 41.585 0.000 46.235 1.270 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.335 1.625 66.585 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.235 1.625 66.685 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 58.335 0.000 62.585 1.270 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 58.235 0.000 62.685 1.270 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER met4 ;
+        RECT 1.835 179.385 200.000 204.000 ;
+        RECT 0.000 99.400 200.000 179.385 ;
+        RECT 3.045 73.635 200.000 99.400 ;
+        RECT 0.000 72.935 200.000 73.635 ;
+        RECT 1.880 67.685 200.000 72.935 ;
+        RECT 0.000 67.085 200.000 67.685 ;
+        RECT 2.025 61.835 200.000 67.085 ;
+        RECT 0.000 61.135 200.000 61.835 ;
+        RECT 23.575 60.005 200.000 61.135 ;
+        RECT 23.310 56.725 200.000 60.005 ;
+        RECT 21.950 55.245 200.000 56.725 ;
+        RECT 21.335 51.965 200.000 55.245 ;
+        RECT 19.975 51.335 200.000 51.965 ;
+        RECT 0.000 50.635 200.000 51.335 ;
+        RECT 1.875 45.185 200.000 50.635 ;
+        RECT 0.000 44.585 200.000 45.185 ;
+        RECT 1.735 40.335 200.000 44.585 ;
+        RECT 0.000 39.735 200.000 40.335 ;
+        RECT 1.785 35.485 200.000 39.735 ;
+        RECT 0.000 34.885 200.000 35.485 ;
+        RECT 2.000 29.435 200.000 34.885 ;
+        RECT 0.000 28.835 200.000 29.435 ;
+        RECT 1.925 27.575 200.000 28.835 ;
+        RECT 1.925 27.310 56.005 27.575 ;
+        RECT 1.925 23.975 52.725 27.310 ;
+        RECT 1.925 23.385 47.335 23.975 ;
+        RECT 0.000 22.785 47.335 23.385 ;
+        RECT 1.870 18.535 47.335 22.785 ;
+        RECT 48.465 21.955 52.725 23.975 ;
+        RECT 48.465 21.275 51.245 21.955 ;
+        RECT 0.000 17.935 47.335 18.535 ;
+        RECT 4.185 12.485 47.335 17.935 ;
+        RECT 0.000 11.885 47.335 12.485 ;
+        RECT 2.750 5.635 47.335 11.885 ;
+        RECT 0.000 1.670 47.335 5.635 ;
+        RECT 0.000 1.255 1.635 1.670 ;
+        RECT 7.885 1.255 8.485 1.670 ;
+        RECT 13.935 1.655 19.385 1.670 ;
+        RECT 13.935 1.255 14.535 1.655 ;
+        RECT 18.785 1.255 19.385 1.655 ;
+        RECT 24.835 1.255 25.435 1.670 ;
+        RECT 30.885 1.255 31.485 1.670 ;
+        RECT 35.735 1.255 36.335 1.670 ;
+        RECT 40.585 1.255 41.185 1.670 ;
+        RECT 46.635 1.255 47.335 1.670 ;
+        RECT 57.135 2.255 200.000 27.575 ;
+        RECT 57.135 1.670 69.635 2.255 ;
+        RECT 57.135 1.255 57.835 1.670 ;
+        RECT 63.085 1.255 63.685 1.670 ;
+        RECT 68.935 1.255 69.635 1.670 ;
+        RECT 95.400 1.670 200.000 2.255 ;
+        RECT 95.400 1.255 175.385 1.670 ;
+      LAYER met5 ;
+        RECT 0.000 100.585 200.000 204.000 ;
+        RECT 4.245 72.435 200.000 100.585 ;
+        RECT 3.080 68.185 200.000 72.435 ;
+        RECT 3.225 62.335 200.000 68.185 ;
+        RECT 24.755 50.135 200.000 62.335 ;
+        RECT 3.075 44.085 200.000 50.135 ;
+        RECT 2.935 40.835 200.000 44.085 ;
+        RECT 2.985 35.985 200.000 40.835 ;
+        RECT 3.200 28.755 200.000 35.985 ;
+        RECT 3.200 28.335 46.135 28.755 ;
+        RECT 3.125 22.285 46.135 28.335 ;
+        RECT 3.070 19.035 46.135 22.285 ;
+        RECT 5.385 11.385 46.135 19.035 ;
+        RECT 3.950 4.535 46.135 11.385 ;
+        RECT 0.000 2.870 46.135 4.535 ;
+        RECT 58.335 3.455 200.000 28.755 ;
+        RECT 58.335 2.870 68.435 3.455 ;
+        RECT 0.000 0.000 0.535 2.870 ;
+        RECT 15.035 2.855 18.285 2.870 ;
+        RECT 96.585 0.000 200.000 3.455 ;
+  END
+END sky130_ef_io__corner_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__gpiov2_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__gpiov2_pad.lef
new file mode 100644
index 0000000..30586a9
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__gpiov2_pad.lef
@@ -0,0 +1,597 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__gpiov2_pad
+  CLASS PAD INOUT ;
+  FOREIGN sky130_ef_io__gpiov2_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 80.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 36.440 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 38.760 51.090 80.000 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 52.145 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 54.465 46.330 80.000 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN ANALOG_EN
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met1 ;
+        RECT 62.430 -2.035 62.690 -0.730 ;
+    END
+  END ANALOG_EN
+  PIN ANALOG_POL
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met3 ;
+        RECT 45.865 -2.035 46.195 34.770 ;
+    END
+  END ANALOG_POL
+  PIN ANALOG_SEL
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 30.750 -2.035 31.010 0.230 ;
+    END
+  END ANALOG_SEL
+  PIN DM[2]
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 28.490 -2.035 28.750 2.035 ;
+    END
+  END DM[2]
+  PIN DM[1]
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 66.835 -2.035 67.095 -0.840 ;
+    END
+  END DM[1]
+  PIN DM[0]
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 49.855 -2.035 50.115 -1.490 ;
+    END
+  END DM[0]
+  PIN ENABLE_H
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 35.460 -2.035 35.720 -0.485 ;
+    END
+  END ENABLE_H
+  PIN ENABLE_INP_H
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 38.390 -2.035 38.650 1.055 ;
+    END
+  END ENABLE_INP_H
+  PIN ENABLE_VDDA_H
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 12.755 -2.035 13.015 3.315 ;
+    END
+  END ENABLE_VDDA_H
+  PIN ENABLE_VDDIO
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met3 ;
+        RECT 78.580 -2.035 78.910 182.740 ;
+    END
+  END ENABLE_VDDIO
+  PIN ENABLE_VSWITCH_H
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 16.310 -2.035 16.570 0.285 ;
+    END
+  END ENABLE_VSWITCH_H
+  PIN HLD_H_N
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 31.815 -2.035 32.075 1.305 ;
+    END
+  END HLD_H_N
+  PIN HLD_OVR
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 26.600 -2.035 26.860 0.670 ;
+    END
+  END HLD_OVR
+  PIN IB_MODE_SEL
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 5.420 -2.035 5.650 2.440 ;
+    END
+  END IB_MODE_SEL
+  PIN IN
+    DIRECTION OUTPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met3 ;
+        RECT 79.240 -2.035 79.570 187.525 ;
+    END
+  END IN
+  PIN IN_H
+    DIRECTION OUTPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met3 ;
+        RECT 0.400 -2.035 1.020 176.450 ;
+    END
+  END IN_H
+  PIN INP_DIS
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 45.245 -2.035 45.505 3.055 ;
+    END
+  END INP_DIS
+  PIN OE_N
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 3.375 -2.035 3.605 2.440 ;
+    END
+  END OE_N
+  PIN OUT
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 22.355 -2.035 22.615 4.390 ;
+    END
+  END OUT
+  PIN PAD
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met5 ;
+        RECT 11.200 102.525 73.800 164.975 ;
+    END
+  END PAD
+  PIN PAD_A_ESD_0_H
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 76.280 -2.035 76.920 0.020 ;
+    END
+  END PAD_A_ESD_0_H
+  PIN PAD_A_ESD_1_H
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 68.275 -2.035 68.925 0.235 ;
+    END
+  END PAD_A_ESD_1_H
+  PIN PAD_A_NOESD_H
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met3 ;
+        RECT 62.820 -2.035 63.890 7.670 ;
+    END
+  END PAD_A_NOESD_H
+  PIN SLOW
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 77.610 -2.035 77.870 -0.850 ;
+    END
+  END SLOW
+  PIN TIE_HI_ESD
+    DIRECTION OUTPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 78.705 -2.035 78.905 -0.820 ;
+    END
+  END TIE_HI_ESD
+  PIN TIE_LO_ESD
+    DIRECTION OUTPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 79.715 -2.035 79.915 175.835 ;
+    END
+  END TIE_LO_ESD
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 6.950 80.000 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 6.850 80.000 11.500 ;
+    END
+  END VCCD
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 0.100 80.000 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 0.000 80.000 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.970 13.000 80.000 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.970 12.900 80.000 16.350 ;
+    END
+  END VDDA
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 68.000 80.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 17.850 80.000 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 17.750 80.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 68.000 80.000 92.965 ;
+    END
+  END VDDIO
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 62.150 80.000 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 62.050 80.000 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 2.610 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 2.610 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 45.700 80.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 34.805 80.000 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 49.610 80.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 47.090 54.370 80.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 47.090 45.700 80.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 34.700 80.000 38.150 ;
+    END
+  END VSSA
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 39.650 80.000 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 39.550 80.000 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 0.810 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.970 173.750 80.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 23.900 80.000 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 23.800 80.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 173.750 80.000 197.965 ;
+    END
+  END VSSIO
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 56.300 80.000 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 56.200 80.000 60.650 ;
+    END
+  END VSSIO_Q
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 78.730 29.950 80.000 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 78.730 29.850 80.000 33.300 ;
+    END
+  END VSWITCH
+  PIN VTRIP_SEL
+    DIRECTION INPUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met2 ;
+        RECT 6.130 -2.035 6.390 -0.485 ;
+    END
+  END VTRIP_SEL
+  OBS
+      LAYER li1 ;
+        RECT 0.000 0.000 80.000 197.670 ;
+      LAYER met1 ;
+        RECT 0.000 0.000 80.000 197.965 ;
+      LAYER met2 ;
+        RECT 0.210 176.115 79.915 197.965 ;
+        RECT 0.210 4.670 79.435 176.115 ;
+        RECT 0.210 3.595 22.075 4.670 ;
+        RECT 0.210 2.720 12.475 3.595 ;
+        RECT 0.210 0.000 3.095 2.720 ;
+        RECT 3.885 0.000 5.140 2.720 ;
+        RECT 5.930 0.000 12.475 2.720 ;
+        RECT 13.295 0.565 22.075 3.595 ;
+        RECT 13.295 0.000 16.030 0.565 ;
+        RECT 16.850 0.000 22.075 0.565 ;
+        RECT 22.895 3.335 79.435 4.670 ;
+        RECT 22.895 2.315 44.965 3.335 ;
+        RECT 22.895 0.950 28.210 2.315 ;
+        RECT 22.895 0.000 26.320 0.950 ;
+        RECT 27.140 0.000 28.210 0.950 ;
+        RECT 29.030 1.585 44.965 2.315 ;
+        RECT 29.030 0.510 31.535 1.585 ;
+        RECT 29.030 0.000 30.470 0.510 ;
+        RECT 31.290 0.000 31.535 0.510 ;
+        RECT 32.355 1.335 44.965 1.585 ;
+        RECT 32.355 0.000 38.110 1.335 ;
+        RECT 38.930 0.000 44.965 1.335 ;
+        RECT 45.785 0.515 79.435 3.335 ;
+        RECT 45.785 0.000 67.995 0.515 ;
+        RECT 69.205 0.300 79.435 0.515 ;
+        RECT 69.205 0.000 76.000 0.300 ;
+        RECT 77.200 0.000 79.435 0.300 ;
+      LAYER met3 ;
+        RECT 0.400 187.925 79.570 197.965 ;
+        RECT 0.400 183.140 78.840 187.925 ;
+        RECT 0.400 176.850 78.180 183.140 ;
+        RECT 1.420 35.170 78.180 176.850 ;
+        RECT 1.420 0.000 45.465 35.170 ;
+        RECT 46.595 8.070 78.180 35.170 ;
+        RECT 46.595 0.000 62.420 8.070 ;
+        RECT 64.290 0.000 78.180 8.070 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 78.330 197.965 ;
+        RECT 0.965 93.365 78.970 173.350 ;
+        RECT 1.670 67.600 78.330 93.365 ;
+        RECT 0.965 66.900 78.970 67.600 ;
+        RECT 1.670 61.650 78.330 66.900 ;
+        RECT 0.965 61.050 78.970 61.650 ;
+        RECT 1.670 55.800 78.330 61.050 ;
+        RECT 0.965 55.100 78.970 55.800 ;
+        RECT 3.010 54.470 46.690 55.100 ;
+        RECT 36.840 50.690 38.360 54.470 ;
+        RECT 1.670 49.710 78.330 50.690 ;
+        RECT 52.545 46.430 54.065 49.710 ;
+        RECT 3.010 45.300 46.690 45.930 ;
+        RECT 0.965 44.600 78.970 45.300 ;
+        RECT 1.670 39.150 78.330 44.600 ;
+        RECT 0.965 38.550 78.970 39.150 ;
+        RECT 1.670 34.300 78.330 38.550 ;
+        RECT 0.965 33.700 78.970 34.300 ;
+        RECT 1.670 29.450 78.330 33.700 ;
+        RECT 0.965 28.850 78.970 29.450 ;
+        RECT 1.670 23.400 78.330 28.850 ;
+        RECT 0.965 22.800 78.970 23.400 ;
+        RECT 1.670 17.350 78.330 22.800 ;
+        RECT 0.965 16.750 78.970 17.350 ;
+        RECT 1.365 12.500 78.570 16.750 ;
+        RECT 0.965 11.900 78.970 12.500 ;
+        RECT 1.670 6.450 78.330 11.900 ;
+        RECT 0.965 5.850 78.970 6.450 ;
+        RECT 1.670 0.000 78.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.575 80.000 197.965 ;
+        RECT 0.000 100.925 9.600 166.575 ;
+        RECT 75.400 100.925 80.000 166.575 ;
+        RECT 0.000 94.550 80.000 100.925 ;
+        RECT 2.870 16.250 77.130 94.550 ;
+        RECT 2.565 13.000 77.370 16.250 ;
+        RECT 2.870 0.100 77.130 13.000 ;
+  END
+END sky130_ef_io__gpiov2_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vccd_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vccd_hvc_pad.lef
new file mode 100644
index 0000000..bc1af4d
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vccd_hvc_pad.lef
@@ -0,0 +1,388 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vccd_hvc_pad
+  CLASS PAD POWER ;
+  FOREIGN sky130_ef_io__vccd_hvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_HVC
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met2 ;
+        RECT 50.390 -2.035 74.290 23.625 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 37.890 -2.035 48.890 9.295 ;
+    END
+  END DRN_HVC
+  PIN SRC_BDY_HVC
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.495 -2.035 24.395 0.020 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 25.895 -2.035 36.895 0.690 ;
+    END
+  END SRC_BDY_HVC
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 6.100 101.975 68.800 164.590 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.390 -2.035 74.290 6.865 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.495 -2.035 24.395 6.865 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.225 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.610 0.000 72.855 197.660 ;
+      LAYER met1 ;
+        RECT 0.185 0.000 72.915 197.690 ;
+      LAYER met2 ;
+        RECT 0.265 23.905 74.290 193.040 ;
+        RECT 0.265 0.300 50.110 23.905 ;
+        RECT 24.675 0.000 50.110 0.300 ;
+      LAYER met3 ;
+        RECT 0.240 9.695 74.290 197.965 ;
+        RECT 0.240 7.265 37.490 9.695 ;
+        RECT 24.795 1.090 37.490 7.265 ;
+        RECT 24.795 0.690 25.495 1.090 ;
+        RECT 37.295 0.690 37.490 1.090 ;
+        RECT 49.290 7.265 74.290 9.695 ;
+        RECT 49.290 0.690 49.990 7.265 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.190 75.000 197.965 ;
+        RECT 0.000 100.375 4.500 166.190 ;
+        RECT 70.400 100.375 75.000 166.190 ;
+        RECT 0.000 94.550 75.000 100.375 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vccd_hvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vccd_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vccd_lvc_pad.lef
new file mode 100644
index 0000000..faee916
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vccd_lvc_pad.lef
@@ -0,0 +1,406 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vccd_lvc_pad
+  CLASS PAD POWER ;
+  FOREIGN sky130_ef_io__vccd_lvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_LVC1
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 26.000 -0.035 36.880 20.185 ;
+    END
+  END DRN_LVC1
+  PIN DRN_LVC2
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 38.380 -0.035 49.255 22.865 ;
+    END
+  END DRN_LVC2
+  PIN SRC_BDY_LVC1
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.500 -0.035 20.495 1.450 ;
+    END
+  END SRC_BDY_LVC1
+  PIN SRC_BDY_LVC2
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 54.715 -0.035 74.700 3.625 ;
+    END
+  END SRC_BDY_LVC2
+  PIN BDY2_B2B
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 34.440 -0.035 44.440 0.290 ;
+    END
+  END BDY2_B2B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 9.315 100.105 65.955 167.535 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.755 -0.035 74.700 6.865 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.500 -0.035 24.500 6.865 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 74.225 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.240 0.985 74.755 197.745 ;
+      LAYER met1 ;
+        RECT 0.120 0.000 74.785 197.805 ;
+      LAYER met2 ;
+        RECT 0.490 3.905 74.700 194.395 ;
+        RECT 0.490 1.730 54.435 3.905 ;
+        RECT 20.775 0.570 54.435 1.730 ;
+        RECT 20.775 0.000 34.160 0.570 ;
+        RECT 44.720 0.000 54.435 0.570 ;
+      LAYER met3 ;
+        RECT 0.490 23.265 74.700 189.480 ;
+        RECT 0.490 20.585 37.980 23.265 ;
+        RECT 0.490 7.265 25.600 20.585 ;
+        RECT 24.900 0.000 25.600 7.265 ;
+        RECT 37.280 0.000 37.980 20.585 ;
+        RECT 49.655 7.265 74.700 23.265 ;
+        RECT 49.655 0.000 50.355 7.265 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 169.135 75.000 197.965 ;
+        RECT 0.000 98.505 7.715 169.135 ;
+        RECT 67.555 98.505 75.000 169.135 ;
+        RECT 0.000 94.550 75.000 98.505 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vccd_lvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vdda_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vdda_hvc_pad.lef
new file mode 100644
index 0000000..e30fe64
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vdda_hvc_pad.lef
@@ -0,0 +1,395 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vdda_hvc_pad
+  CLASS PAD POWER ;
+  FOREIGN sky130_ef_io__vdda_hvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_HVC
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met2 ;
+        RECT 50.390 -2.035 74.290 23.625 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 37.890 -2.035 48.890 9.295 ;
+    END
+  END DRN_HVC
+  PIN SRC_BDY_HVC
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.495 -2.035 24.395 0.020 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 25.895 -2.035 36.895 0.690 ;
+    END
+  END SRC_BDY_HVC
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 6.100 101.975 68.800 164.590 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.390 -2.035 74.290 12.925 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.495 -2.035 24.395 12.925 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 74.225 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.630 189.565 0.640 189.575 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.360 189.565 74.370 189.575 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.610 0.000 72.855 197.660 ;
+      LAYER met1 ;
+        RECT 0.185 0.000 72.915 197.690 ;
+      LAYER met2 ;
+        RECT 0.265 23.905 74.290 193.040 ;
+        RECT 0.265 0.300 50.110 23.905 ;
+        RECT 24.675 0.000 50.110 0.300 ;
+      LAYER met3 ;
+        RECT 0.240 13.325 74.655 197.965 ;
+        RECT 24.795 9.695 49.990 13.325 ;
+        RECT 24.795 1.090 37.490 9.695 ;
+        RECT 24.795 0.690 25.495 1.090 ;
+        RECT 37.295 0.690 37.490 1.090 ;
+        RECT 49.290 0.690 49.990 9.695 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.190 75.000 197.965 ;
+        RECT 0.000 100.375 4.500 166.190 ;
+        RECT 70.400 100.375 75.000 166.190 ;
+        RECT 0.000 94.550 75.000 100.375 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vdda_hvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vdda_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vdda_lvc_pad.lef
new file mode 100644
index 0000000..819f513
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vdda_lvc_pad.lef
@@ -0,0 +1,398 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vdda_lvc_pad
+  CLASS PAD POWER ;
+  FOREIGN sky130_ef_io__vdda_lvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_LVC1
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 26.000 -0.035 36.880 20.185 ;
+    END
+  END DRN_LVC1
+  PIN DRN_LVC2
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 38.380 -0.035 49.255 22.865 ;
+    END
+  END DRN_LVC2
+  PIN SRC_BDY_LVC1
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.500 -0.035 20.495 1.450 ;
+    END
+  END SRC_BDY_LVC1
+  PIN SRC_BDY_LVC2
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 54.715 -0.035 74.700 3.625 ;
+    END
+  END SRC_BDY_LVC2
+  PIN BDY2_B2B
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 34.440 -0.035 44.440 0.290 ;
+    END
+  END BDY2_B2B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 50.755 -0.035 74.700 12.925 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.500 -0.035 24.500 12.925 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.315 100.105 65.955 167.535 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.240 0.985 74.755 197.745 ;
+      LAYER met1 ;
+        RECT 0.120 0.000 74.785 197.805 ;
+      LAYER met2 ;
+        RECT 0.490 3.905 74.700 194.395 ;
+        RECT 0.490 1.730 54.435 3.905 ;
+        RECT 20.775 0.570 54.435 1.730 ;
+        RECT 20.775 0.000 34.160 0.570 ;
+        RECT 44.720 0.000 54.435 0.570 ;
+      LAYER met3 ;
+        RECT 0.490 23.265 74.700 189.480 ;
+        RECT 0.490 20.585 37.980 23.265 ;
+        RECT 0.490 13.325 25.600 20.585 ;
+        RECT 24.900 0.000 25.600 13.325 ;
+        RECT 37.280 0.000 37.980 20.585 ;
+        RECT 49.655 13.325 74.700 23.265 ;
+        RECT 49.655 0.000 50.355 13.325 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 169.135 75.000 197.965 ;
+        RECT 0.000 98.505 7.715 169.135 ;
+        RECT 67.555 98.505 75.000 169.135 ;
+        RECT 0.000 94.550 75.000 98.505 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vdda_lvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vddio_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vddio_hvc_pad.lef
new file mode 100644
index 0000000..57c4031
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vddio_hvc_pad.lef
@@ -0,0 +1,387 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vddio_hvc_pad
+  CLASS PAD POWER ;
+  FOREIGN sky130_ef_io__vddio_hvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_HVC
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met2 ;
+        RECT 50.390 -2.035 74.290 23.625 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 37.890 -2.035 48.890 9.295 ;
+    END
+  END DRN_HVC
+  PIN SRC_BDY_HVC
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.495 -2.035 24.395 0.020 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 25.895 -2.035 36.895 0.690 ;
+    END
+  END SRC_BDY_HVC
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 6.100 101.975 68.800 164.590 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.390 -2.035 74.290 17.765 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.495 -2.035 24.395 17.765 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.225 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.610 0.000 72.855 197.660 ;
+      LAYER met1 ;
+        RECT 0.185 0.000 72.915 197.690 ;
+      LAYER met2 ;
+        RECT 0.265 23.905 74.290 193.040 ;
+        RECT 0.265 0.300 50.110 23.905 ;
+        RECT 24.675 0.000 50.110 0.300 ;
+      LAYER met3 ;
+        RECT 0.240 18.165 74.290 197.965 ;
+        RECT 24.795 9.695 49.990 18.165 ;
+        RECT 24.795 1.090 37.490 9.695 ;
+        RECT 24.795 0.690 25.495 1.090 ;
+        RECT 37.295 0.690 37.490 1.090 ;
+        RECT 49.290 0.690 49.990 9.695 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.190 75.000 197.965 ;
+        RECT 0.000 100.375 4.500 166.190 ;
+        RECT 70.400 100.375 75.000 166.190 ;
+        RECT 0.000 94.550 75.000 100.375 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vddio_hvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vddio_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vddio_lvc_pad.lef
new file mode 100644
index 0000000..c21a75e
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vddio_lvc_pad.lef
@@ -0,0 +1,398 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vddio_lvc_pad
+  CLASS PAD POWER ;
+  FOREIGN sky130_ef_io__vddio_lvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_LVC1
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 26.000 -0.035 36.880 20.185 ;
+    END
+  END DRN_LVC1
+  PIN DRN_LVC2
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 38.380 -0.035 49.255 22.865 ;
+    END
+  END DRN_LVC2
+  PIN SRC_BDY_LVC1
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.500 -0.035 20.495 1.450 ;
+    END
+  END SRC_BDY_LVC1
+  PIN SRC_BDY_LVC2
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 54.715 -0.035 74.700 3.625 ;
+    END
+  END SRC_BDY_LVC2
+  PIN BDY2_B2B
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 34.440 -0.035 44.440 0.290 ;
+    END
+  END BDY2_B2B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 9.315 100.105 65.955 167.535 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.755 -0.035 74.700 17.765 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.500 -0.035 24.500 17.765 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.240 0.985 74.755 197.745 ;
+      LAYER met1 ;
+        RECT 0.120 0.000 74.785 197.805 ;
+      LAYER met2 ;
+        RECT 0.490 3.905 74.700 194.395 ;
+        RECT 0.490 1.730 54.435 3.905 ;
+        RECT 20.775 0.570 54.435 1.730 ;
+        RECT 20.775 0.000 34.160 0.570 ;
+        RECT 44.720 0.000 54.435 0.570 ;
+      LAYER met3 ;
+        RECT 0.490 23.265 74.700 189.480 ;
+        RECT 0.490 20.585 37.980 23.265 ;
+        RECT 0.490 18.165 25.600 20.585 ;
+        RECT 24.900 0.000 25.600 18.165 ;
+        RECT 37.280 0.000 37.980 20.585 ;
+        RECT 49.655 18.165 74.700 23.265 ;
+        RECT 49.655 0.000 50.355 18.165 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 169.135 75.000 197.965 ;
+        RECT 0.000 98.505 7.715 169.135 ;
+        RECT 67.555 98.505 75.000 169.135 ;
+        RECT 0.000 94.550 75.000 98.505 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vddio_lvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef
new file mode 100644
index 0000000..8a71aa4
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef
@@ -0,0 +1,394 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vssa_hvc_pad
+  CLASS PAD GROUND ;
+  FOREIGN sky130_ef_io__vssa_hvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_HVC
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met2 ;
+        RECT 50.390 -2.035 74.290 23.625 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 37.890 -2.035 48.890 10.345 ;
+    END
+  END DRN_HVC
+  PIN SRC_BDY_HVC
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.495 -2.035 24.395 0.020 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 25.895 -2.035 36.895 10.390 ;
+    END
+  END SRC_BDY_HVC
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 6.100 101.975 68.800 164.590 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.495 -2.035 24.395 30.480 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.390 -2.035 74.290 34.725 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 74.360 189.565 74.370 189.575 ;
+    END
+  END VSSIO
+  OBS
+      LAYER li1 ;
+        RECT 1.070 0.000 72.775 197.660 ;
+      LAYER met1 ;
+        RECT 0.185 0.000 73.620 197.690 ;
+      LAYER met2 ;
+        RECT 0.265 23.905 74.290 193.040 ;
+        RECT 0.265 0.300 50.110 23.905 ;
+        RECT 24.675 0.000 50.110 0.300 ;
+      LAYER met3 ;
+        RECT 0.240 35.125 74.290 193.065 ;
+        RECT 0.240 30.880 49.990 35.125 ;
+        RECT 24.795 10.790 49.990 30.880 ;
+        RECT 24.795 10.345 25.495 10.790 ;
+        RECT 37.295 10.745 49.990 10.790 ;
+        RECT 37.295 10.345 37.490 10.745 ;
+        RECT 49.290 10.345 49.990 10.745 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 54.470 73.330 55.100 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 1.670 45.300 73.330 45.930 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.190 75.000 197.965 ;
+        RECT 0.000 100.375 4.500 166.190 ;
+        RECT 70.400 100.375 75.000 166.190 ;
+        RECT 0.000 94.550 75.000 100.375 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vssa_hvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef
new file mode 100644
index 0000000..f5e7954
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef
@@ -0,0 +1,397 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vssa_lvc_pad
+  CLASS PAD GROUND ;
+  FOREIGN sky130_ef_io__vssa_lvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 51.090 75.000 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 46.330 75.000 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_LVC1
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 26.000 -0.035 36.880 20.185 ;
+    END
+  END DRN_LVC1
+  PIN DRN_LVC2
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 38.380 -0.035 49.255 22.865 ;
+    END
+  END DRN_LVC2
+  PIN SRC_BDY_LVC1
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.500 -0.035 20.495 1.450 ;
+    END
+  END SRC_BDY_LVC1
+  PIN SRC_BDY_LVC2
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 54.715 -0.035 74.700 3.625 ;
+    END
+  END SRC_BDY_LVC2
+  PIN BDY2_B2B
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 34.440 -0.035 44.440 0.290 ;
+    END
+  END BDY2_B2B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.500 -0.035 24.500 34.725 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.755 -0.035 74.700 34.725 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 9.315 100.105 65.955 167.535 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.240 0.985 74.755 197.745 ;
+      LAYER met1 ;
+        RECT 0.120 0.000 74.785 197.805 ;
+      LAYER met2 ;
+        RECT 0.500 3.905 74.700 194.395 ;
+        RECT 0.500 1.730 54.435 3.905 ;
+        RECT 20.775 0.570 54.435 1.730 ;
+        RECT 20.775 0.000 34.160 0.570 ;
+        RECT 44.720 0.000 54.435 0.570 ;
+      LAYER met3 ;
+        RECT 0.490 35.125 74.700 189.480 ;
+        RECT 24.900 23.265 50.355 35.125 ;
+        RECT 24.900 20.585 37.980 23.265 ;
+        RECT 24.900 1.545 25.600 20.585 ;
+        RECT 37.280 1.545 37.980 20.585 ;
+        RECT 49.655 1.545 50.355 23.265 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 169.135 75.000 197.965 ;
+        RECT 0.000 98.505 7.715 169.135 ;
+        RECT 67.555 98.505 75.000 169.135 ;
+        RECT 0.000 94.550 75.000 98.505 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vssa_lvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef
new file mode 100644
index 0000000..f62dbcd
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef
@@ -0,0 +1,388 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vssd_hvc_pad
+  CLASS PAD GROUND ;
+  FOREIGN sky130_ef_io__vssd_hvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_HVC
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met2 ;
+        RECT 50.390 -2.035 74.290 23.625 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 37.890 -2.035 48.890 10.345 ;
+    END
+  END DRN_HVC
+  PIN SRC_BDY_HVC
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.495 -2.035 24.395 0.020 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 25.895 -2.035 36.895 10.390 ;
+    END
+  END SRC_BDY_HVC
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.225 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 6.100 101.975 68.800 164.590 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.495 -2.035 24.395 30.480 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.390 -2.035 74.290 39.565 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 1.070 0.000 72.775 197.660 ;
+      LAYER met1 ;
+        RECT 0.185 0.000 73.620 197.690 ;
+      LAYER met2 ;
+        RECT 0.265 23.905 74.290 193.040 ;
+        RECT 0.265 0.300 50.110 23.905 ;
+        RECT 24.675 0.000 50.110 0.300 ;
+      LAYER met3 ;
+        RECT 0.240 39.965 74.290 193.065 ;
+        RECT 0.240 30.880 49.990 39.965 ;
+        RECT 24.795 10.790 49.990 30.880 ;
+        RECT 24.795 10.345 25.495 10.790 ;
+        RECT 37.295 10.745 49.990 10.790 ;
+        RECT 37.295 10.345 37.490 10.745 ;
+        RECT 49.290 10.345 49.990 10.745 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.190 75.000 197.965 ;
+        RECT 0.000 100.375 4.500 166.190 ;
+        RECT 70.400 100.375 75.000 166.190 ;
+        RECT 0.000 94.550 75.000 100.375 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vssd_hvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef
new file mode 100644
index 0000000..9d49ac8
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef
@@ -0,0 +1,405 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vssd_lvc_pad
+  CLASS PAD GROUND ;
+  FOREIGN sky130_ef_io__vssd_lvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_LVC1
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 26.000 -0.035 36.880 20.185 ;
+    END
+  END DRN_LVC1
+  PIN DRN_LVC2
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 38.380 -0.035 49.255 22.865 ;
+    END
+  END DRN_LVC2
+  PIN SRC_BDY_LVC1
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.500 -0.035 20.495 1.450 ;
+    END
+  END SRC_BDY_LVC1
+  PIN SRC_BDY_LVC2
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 54.715 -0.035 74.700 3.625 ;
+    END
+  END SRC_BDY_LVC2
+  PIN BDY2_B2B
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 34.440 -0.035 44.440 0.290 ;
+    END
+  END BDY2_B2B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met4 ;
+        RECT 74.225 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.205 197.965 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 9.315 100.105 65.955 167.535 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.755 -0.035 74.700 39.565 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.500 -0.035 24.500 39.565 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.240 0.985 74.755 197.745 ;
+      LAYER met1 ;
+        RECT 0.120 0.000 74.785 197.805 ;
+      LAYER met2 ;
+        RECT 0.500 3.905 74.700 194.395 ;
+        RECT 0.500 1.730 54.435 3.905 ;
+        RECT 20.775 0.570 54.435 1.730 ;
+        RECT 20.775 0.000 34.160 0.570 ;
+        RECT 44.720 0.000 54.435 0.570 ;
+      LAYER met3 ;
+        RECT 0.500 39.965 74.700 189.480 ;
+        RECT 24.900 23.265 50.355 39.965 ;
+        RECT 24.900 20.585 37.980 23.265 ;
+        RECT 24.900 17.755 25.600 20.585 ;
+        RECT 37.280 17.755 37.980 20.585 ;
+        RECT 49.655 17.755 50.355 23.265 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 169.135 75.000 197.965 ;
+        RECT 0.000 98.505 7.715 169.135 ;
+        RECT 67.555 98.505 75.000 169.135 ;
+        RECT 0.000 94.550 75.000 98.505 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vssd_lvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef
new file mode 100644
index 0000000..33955ab
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef
@@ -0,0 +1,387 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vssio_hvc_pad
+  CLASS PAD GROUND ;
+  FOREIGN sky130_ef_io__vssio_hvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_HVC
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met2 ;
+        RECT 50.390 -2.035 74.290 23.625 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 37.890 -2.035 48.890 10.345 ;
+    END
+  END DRN_HVC
+  PIN SRC_BDY_HVC
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.495 -2.035 24.395 0.020 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 25.895 -2.035 36.895 10.390 ;
+    END
+  END SRC_BDY_HVC
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 6.100 101.975 68.800 164.590 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.630 189.565 0.640 189.575 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.250 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.495 -2.035 24.395 23.815 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.390 -2.035 74.290 23.815 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 1.070 0.000 72.775 197.660 ;
+      LAYER met1 ;
+        RECT 0.185 0.000 73.620 197.690 ;
+      LAYER met2 ;
+        RECT 0.265 23.905 74.290 193.040 ;
+        RECT 0.265 0.300 50.110 23.905 ;
+        RECT 24.675 0.000 50.110 0.300 ;
+      LAYER met3 ;
+        RECT 0.240 24.215 74.290 197.965 ;
+        RECT 24.795 10.790 49.990 24.215 ;
+        RECT 24.795 10.345 25.495 10.790 ;
+        RECT 37.295 10.745 49.990 10.790 ;
+        RECT 37.295 10.345 37.490 10.745 ;
+        RECT 49.290 10.345 49.990 10.745 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 166.190 75.000 197.965 ;
+        RECT 0.000 100.375 4.500 166.190 ;
+        RECT 70.400 100.375 75.000 166.190 ;
+        RECT 0.000 94.550 75.000 100.375 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vssio_hvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef
new file mode 100644
index 0000000..6978f93
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef
@@ -0,0 +1,397 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO sky130_ef_io__vssio_lvc_pad
+  CLASS PAD GROUND ;
+  FOREIGN sky130_ef_io__vssio_lvc_pad ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 75.000 BY 197.965 ;
+  PIN AMUXBUS_A
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 75.000 54.070 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 51.090 1.270 54.070 ;
+    END
+  END AMUXBUS_A
+  PIN AMUXBUS_B
+    DIRECTION INOUT ;
+    USE SIGNAL ;
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 75.000 49.310 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 46.330 1.270 49.310 ;
+    END
+  END AMUXBUS_B
+  PIN DRN_LVC1
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 26.000 -0.035 36.880 20.185 ;
+    END
+  END DRN_LVC1
+  PIN DRN_LVC2
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met3 ;
+        RECT 38.380 -0.035 49.255 22.865 ;
+    END
+  END DRN_LVC2
+  PIN SRC_BDY_LVC1
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 0.500 -0.035 20.495 1.450 ;
+    END
+  END SRC_BDY_LVC1
+  PIN SRC_BDY_LVC2
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 54.715 -0.035 74.700 3.625 ;
+    END
+  END SRC_BDY_LVC2
+  PIN BDY2_B2B
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met2 ;
+        RECT 34.440 -0.035 44.440 0.290 ;
+    END
+  END BDY2_B2B
+  PIN VSSA
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 45.700 75.000 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 34.805 75.000 38.050 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 45.700 1.270 54.700 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 34.805 1.270 38.050 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 49.610 75.000 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 75.000 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 75.000 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 34.700 75.000 38.150 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 45.700 1.270 46.030 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 49.610 1.270 50.790 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 54.370 1.270 54.700 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 34.700 1.270 38.150 ;
+    END
+  END VSSA
+  PIN VDDA
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 74.035 13.000 75.000 16.250 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 13.000 0.965 16.250 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 74.035 12.900 75.000 16.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 12.900 0.965 16.350 ;
+    END
+  END VDDA
+  PIN VSWITCH
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 29.950 75.000 33.200 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 29.950 1.270 33.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 29.850 75.000 33.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 29.850 1.270 33.300 ;
+    END
+  END VSWITCH
+  PIN VDDIO_Q
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 62.150 75.000 66.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 62.150 1.270 66.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 62.050 75.000 66.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 62.050 1.270 66.500 ;
+    END
+  END VDDIO_Q
+  PIN VCCHIB
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 0.100 75.000 5.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 0.100 1.270 5.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 0.000 75.000 5.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 0.000 1.270 5.450 ;
+    END
+  END VCCHIB
+  PIN VDDIO
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 68.000 75.000 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 17.850 75.000 22.300 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 68.000 1.270 92.950 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 17.850 1.270 22.300 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 17.750 75.000 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 68.000 75.000 92.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 17.750 1.270 22.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 68.000 1.270 92.965 ;
+    END
+  END VDDIO
+  PIN VCCD
+    DIRECTION INOUT ;
+    USE POWER ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 6.950 75.000 11.400 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 6.950 1.270 11.400 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 6.850 75.000 11.500 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 6.850 1.270 11.500 ;
+    END
+  END VCCD
+  PIN VSSIO
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 9.315 100.105 65.955 167.535 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 50.755 -0.035 74.700 23.815 ;
+    END
+    PORT
+      LAYER met3 ;
+        RECT 0.500 -0.035 24.500 23.815 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 73.730 23.900 75.000 28.350 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 23.900 1.270 28.350 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 23.800 75.000 28.450 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 173.750 75.000 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 173.750 1.270 197.965 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 23.800 1.270 28.450 ;
+    END
+  END VSSIO
+  PIN VSSD
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 39.650 75.000 44.100 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 39.650 1.270 44.100 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 39.550 75.000 44.200 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 39.550 1.270 44.200 ;
+    END
+  END VSSD
+  PIN VSSIO_Q
+    DIRECTION INOUT ;
+    USE GROUND ;
+    PORT
+      LAYER met5 ;
+        RECT 73.730 56.300 75.000 60.550 ;
+    END
+    PORT
+      LAYER met5 ;
+        RECT 0.000 56.300 1.270 60.550 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 73.730 56.200 75.000 60.650 ;
+    END
+    PORT
+      LAYER met4 ;
+        RECT 0.000 56.200 1.270 60.650 ;
+    END
+  END VSSIO_Q
+  OBS
+      LAYER li1 ;
+        RECT 0.240 0.985 74.755 197.745 ;
+      LAYER met1 ;
+        RECT 0.120 0.000 74.785 197.805 ;
+      LAYER met2 ;
+        RECT 0.500 3.905 74.700 194.395 ;
+        RECT 0.500 1.730 54.435 3.905 ;
+        RECT 20.775 0.570 54.435 1.730 ;
+        RECT 20.775 0.000 34.160 0.570 ;
+        RECT 44.720 0.000 54.435 0.570 ;
+      LAYER met3 ;
+        RECT 0.490 24.215 74.700 197.965 ;
+        RECT 24.900 23.265 50.355 24.215 ;
+        RECT 24.900 20.585 37.980 23.265 ;
+        RECT 24.900 1.695 25.600 20.585 ;
+        RECT 37.280 1.695 37.980 20.585 ;
+        RECT 49.655 1.695 50.355 23.265 ;
+      LAYER met4 ;
+        RECT 1.670 173.350 73.330 197.965 ;
+        RECT 0.965 93.365 74.035 173.350 ;
+        RECT 1.670 67.600 73.330 93.365 ;
+        RECT 0.965 66.900 74.035 67.600 ;
+        RECT 1.670 61.650 73.330 66.900 ;
+        RECT 0.965 61.050 74.035 61.650 ;
+        RECT 1.670 55.800 73.330 61.050 ;
+        RECT 0.965 55.100 74.035 55.800 ;
+        RECT 1.670 49.710 73.330 50.690 ;
+        RECT 0.965 44.600 74.035 45.300 ;
+        RECT 1.670 39.150 73.330 44.600 ;
+        RECT 0.965 38.550 74.035 39.150 ;
+        RECT 1.670 34.300 73.330 38.550 ;
+        RECT 0.965 33.700 74.035 34.300 ;
+        RECT 1.670 29.450 73.330 33.700 ;
+        RECT 0.965 28.850 74.035 29.450 ;
+        RECT 1.670 23.400 73.330 28.850 ;
+        RECT 0.965 22.800 74.035 23.400 ;
+        RECT 1.670 17.350 73.330 22.800 ;
+        RECT 0.965 16.750 74.035 17.350 ;
+        RECT 1.365 12.500 73.635 16.750 ;
+        RECT 0.965 11.900 74.035 12.500 ;
+        RECT 1.670 6.450 73.330 11.900 ;
+        RECT 0.965 5.850 74.035 6.450 ;
+        RECT 1.670 0.000 73.330 5.850 ;
+      LAYER met5 ;
+        RECT 0.000 169.135 75.000 197.965 ;
+        RECT 0.000 98.505 7.715 169.135 ;
+        RECT 67.555 98.505 75.000 169.135 ;
+        RECT 0.000 94.550 75.000 98.505 ;
+        RECT 2.870 16.250 72.130 94.550 ;
+        RECT 2.565 13.000 72.435 16.250 ;
+        RECT 2.870 0.100 72.130 13.000 ;
+  END
+END sky130_ef_io__vssio_lvc_pad
+END LIBRARY
+
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io.mag
index de5d1ef..132da51 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io.mag
@@ -1,65 +1,85 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1585845698
-use sky130_ef_io__vssd_lvc_pad  sky130_ef_io__vssd_lvc_pad_0
-timestamp 1585845698
-transform 1 0 1268 0 1 -42858
-box 0 -61 15000 39593
-use sky130_ef_io__vssd_hvc_pad  sky130_ef_io__vssd_hvc_pad_0
-timestamp 1585845698
-transform 1 0 18322 0 1 -43322
-box 0 -435 15000 39593
+timestamp 1602609685
 use sky130_ef_io__vssa_hvc_pad  sky130_ef_io__vssa_hvc_pad_0
-timestamp 1585845698
-transform 1 0 36302 0 1 -43582
-box 0 -435 15000 39593
-use sky130_ef_io__vssa_lvc_pad  sky130_ef_io__vssa_lvc_pad_0
-timestamp 1585845698
-transform 1 0 54022 0 1 -43956
-box 0 -61 15000 39593
-use sky130_ef_io__vssio_lvc_pad  sky130_ef_io__vssio_lvc_pad_0
-timestamp 1585845698
-transform 1 0 71611 0 1 -43826
-box 0 -7 15000 39593
-use sky130_ef_io__corner_pad  sky130_ef_io__corner_pad_0
-timestamp 1585845698
-transform 1 0 111407 0 1 -43193
-box -181 -114 40000 40800
-use sky130_ef_io__vssio_hvc_pad  sky130_ef_io__vssio_hvc_pad_0
-timestamp 1585845698
-transform 1 0 89461 0 1 -43192
+timestamp 1602597384
+transform 1 0 37912 0 1 46935
 box 0 -407 15000 39593
+use sky130_ef_io__vssd_hvc_pad  sky130_ef_io__vssd_hvc_pad_0
+timestamp 1602597384
+transform 1 0 18134 0 1 46741
+box 0 -407 15000 39593
+use sky130_ef_io__vssd_lvc_pad  sky130_ef_io__vssd_lvc_pad_0
+timestamp 1602597384
+transform 1 0 -480 0 1 46173
+box 0 -7 15000 39593
+use sky130_ef_io__vssio_lvc_pad  sky130_ef_io__vssio_lvc_pad_0
+timestamp 1602597384
+transform 1 0 79018 0 1 44233
+box 0 -7 15000 39593
+use sky130_ef_io__vssa_lvc_pad  sky130_ef_io__vssa_lvc_pad_0
+timestamp 1602597384
+transform 1 0 60016 0 1 44427
+box 0 -7 15000 39593
+use sky130_ef_io__vssio_hvc_pad  sky130_ef_io__vssio_hvc_pad_0
+timestamp 1602597384
+transform 1 0 100540 0 1 44967
+box 0 -407 15000 39593
+use sky130_ef_io__corner_pad  sky130_ef_io__corner_pad_0
+timestamp 1602597384
+transform 1 0 123795 0 1 46420
+box 0 0 40000 40800
+use sky130_ef_io__com_bus_slice_20um  sky130_ef_io__com_bus_slice_20um_0
+timestamp 1602609570
+transform 1 0 177444 0 1 45996
+box 0 0 4000 39593
+use sky130_ef_io__com_bus_slice_10um  sky130_ef_io__com_bus_slice_10um_0
+timestamp 1602609491
+transform 1 0 172732 0 1 45576
+box 0 0 2000 39593
+use sky130_ef_io__com_bus_slice_5um  sky130_ef_io__com_bus_slice_5um_0
+timestamp 1602609416
+transform 1 0 169366 0 1 45408
+box 0 0 1000 39593
 use sky130_ef_io__com_bus_slice_1um  sky130_ef_io__com_bus_slice_1um_0
 timestamp 1576684134
-transform 1 0 108518 0 1 -43389
+transform 1 0 167600 0 1 45744
 box 0 0 200 39593
-use sky130_ef_io__vdda_lvc_pad  sky130_ef_io__vdda_lvc_pad_0
-timestamp 1585845698
-transform 1 0 1952 0 1 -313
-box 0 -61 15000 39593
-use sky130_ef_io__vdda_hvc_pad  sky130_ef_io__vdda_hvc_pad_0
-timestamp 1585845698
-transform 1 0 20277 0 1 195
-box 0 -435 15000 39593
 use sky130_ef_io__vccd_lvc_pad  sky130_ef_io__vccd_lvc_pad_0
-timestamp 1585845698
-transform 1 0 37605 0 1 -49
-box 0 -61 15000 39593
-use sky130_ef_io__vddio_hvc_pad  sky130_ef_io__vddio_hvc_pad_0
-timestamp 1585845698
-transform 1 0 73415 0 1 258
-box 0 -435 15000 39593
-use sky130_ef_io__vccd_hvc_pad  sky130_ef_io__vccd_hvc_pad_0
-timestamp 1585845698
-transform 1 0 55455 0 1 325
-box 0 -435 15000 39593
-use sky130_ef_io__gpiov2_pad  sky130_ef_io__gpiov2_pad_0
-timestamp 1585845698
-transform 1 0 110622 0 1 590
-box -143 -466 16134 39593
-use sky130_ef_io__vddio_lvc_pad  sky130_ef_io__vddio_lvc_pad_0
-timestamp 1585845698
-transform 1 0 91354 0 1 -208
+timestamp 1602597384
+transform 1 0 38106 0 1 91155
 box 0 -7 15000 39593
+use sky130_ef_io__vdda_hvc_pad  sky130_ef_io__vdda_hvc_pad_0
+timestamp 1602597384
+transform 1 0 19686 0 1 92471
+box 0 -407 15000 39593
+use sky130_ef_io__vdda_lvc_pad  sky130_ef_io__vdda_lvc_pad_0
+timestamp 1602597384
+transform 1 0 -868 0 1 91931
+box 0 -7 15000 39593
+use sky130_ef_io__vddio_hvc_pad  sky130_ef_io__vddio_hvc_pad_0
+timestamp 1602597384
+transform 1 0 77078 0 1 92305
+box 0 -407 15000 39593
+use sky130_ef_io__vccd_hvc_pad  sky130_ef_io__vccd_hvc_pad_0
+timestamp 1602597384
+transform 1 0 56526 0 1 91335
+box 0 -407 15000 39593
+use sky130_ef_io__vddio_lvc_pad  sky130_ef_io__vddio_lvc_pad_0
+timestamp 1602597384
+transform 1 0 97048 0 1 92319
+box 0 -7 15000 39593
+use sky130_ef_io__gpiov2_pad  sky130_ef_io__gpiov2_pad_0
+timestamp 1602597384
+transform 1 0 119295 0 1 92724
+box -143 -543 16134 39593
+use sky130_fd_io__top_xres4v2  sky130_fd_io__top_xres4v2_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 140197 0 1 92452
+box -103 0 15124 40000
+use sky130_fd_io__top_gpio_ovtv2  sky130_ef_fd__top_gpio_ovtv2_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 160920 0 1 92540
+box -80 -147 28211 40151
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_10um.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_10um.mag
new file mode 100644
index 0000000..027238e
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_10um.mag
@@ -0,0 +1,149 @@
+magic
+tech sky130A
+magscale 1 2
+timestamp 1602609491
+<< metal4 >>
+rect 0 34750 2000 39593
+rect 0 13600 2000 18593
+rect 0 12410 2000 13300
+rect 0 11240 2000 12130
+rect 0 10874 2000 10940
+rect 0 10218 2000 10814
+rect 0 9922 2000 10158
+rect 0 9266 2000 9862
+rect 0 9140 2000 9206
+rect 0 7910 2000 8840
+rect 0 6940 2000 7630
+rect 0 5970 2000 6660
+rect 0 4760 2000 5690
+rect 0 3550 2000 4480
+rect 0 2580 2000 3270
+rect 0 1370 2000 2300
+rect 0 0 2000 1090
+<< metal5 >>
+rect 0 34750 2000 39593
+rect 0 13600 2000 18590
+rect 0 12430 2000 13280
+rect 0 11260 2000 12110
+rect 0 9140 2000 10940
+rect 0 7930 2000 8820
+rect 0 6960 2000 7610
+rect 0 5990 2000 6640
+rect 0 4780 2000 5670
+rect 0 3570 2000 4460
+rect 0 2600 2000 3250
+rect 0 1390 2000 2280
+rect 0 20 2000 1070
+<< labels >>
+flabel metal5 s 0 13600 200 18593 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 0 12430 200 13280 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal4 s 0 12410 200 13300 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal5 s 0 11260 200 12110 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal4 s 0 11240 200 12130 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal5 s 0 9140 200 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 10874 200 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 10218 200 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 9266 200 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 0 9140 200 9206 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 0 7930 200 8820 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal4 s 0 7910 200 8840 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal5 s 0 6960 200 7610 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 6940 200 7630 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 0 5990 200 6640 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal4 s 0 5970 200 6660 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal5 s 0 4780 200 5670 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal4 s 0 4760 200 5690 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 0 3570 200 4460 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal4 s 0 3550 200 4480 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 0 2600 200 3250 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal4 s 0 2580 200 3270 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal5 s 0 1390 200 2280 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal4 s 0 1370 200 2300 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal5 s 0 20 200 1070 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal4 s 0 0 200 1090 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal5 s 0 34750 200 39593 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 1800 13600 2000 18593 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 1800 12430 2000 13280 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal4 s 1800 12410 2000 13300 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal5 s 1800 11260 2000 12110 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal4 s 1800 11240 2000 12130 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal5 s 1800 9140 2000 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 1800 10874 2000 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 1800 10218 2000 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 1800 9266 2000 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 1800 9140 2000 9206 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 1800 7930 2000 8820 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal4 s 1800 7910 2000 8840 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal5 s 1800 6960 2000 7610 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 1800 6940 2000 7630 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 1800 5990 2000 6640 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal4 s 1800 5970 2000 6660 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal5 s 1800 4780 2000 5670 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal4 s 1800 4760 2000 5690 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 1800 3570 2000 4460 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal4 s 1800 3550 2000 4480 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 1800 2600 2000 3250 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal4 s 1800 2580 2000 3270 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal5 s 1800 1390 2000 2280 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal4 s 1800 1370 2000 2300 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal5 s 1800 20 2000 1070 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal4 s 1800 0 2000 1090 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal5 s 1800 34750 2000 39593 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+<< properties >>
+string LEFclass PAD SPACER
+string FIXED_BBOX 0 0 2000 39593
+<< end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_1um.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_1um.mag
index 2d39387..5aa249c 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_1um.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_1um.mag
@@ -36,60 +36,60 @@
 rect 0 20 200 1070
 << labels >>
 flabel metal5 s 0 13600 200 18593 0 FreeSans 640 0 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal5 s 0 12430 200 13280 0 FreeSans 640 0 0 0 VDDIO_Q
-port 5 nsew
+port 5 nsew power bidirectional
 flabel metal4 s 0 12410 200 13300 0 FreeSans 640 0 0 0 VDDIO_Q
-port 5 nsew
+port 5 nsew power bidirectional
 flabel metal5 s 0 11260 200 12110 0 FreeSans 640 0 0 0 VSSIO_Q
-port 11 nsew
+port 11 nsew ground bidirectional
 flabel metal4 s 0 11240 200 12130 0 FreeSans 640 0 0 0 VSSIO_Q
-port 11 nsew
+port 11 nsew ground bidirectional
 flabel metal5 s 0 9140 200 10940 0 FreeSans 640 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 10874 200 10940 0 FreeSans 640 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 10218 200 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
-port 0 nsew
+port 0 nsew signal bidirectional
 flabel metal4 s 0 9266 200 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
-port 1 nsew
+port 1 nsew signal bidirectional
 flabel metal4 s 0 9140 200 9206 0 FreeSans 640 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 0 7930 200 8820 0 FreeSans 640 0 0 0 VSSD
-port 10 nsew
+port 10 nsew ground bidirectional
 flabel metal4 s 0 7910 200 8840 0 FreeSans 640 0 0 0 VSSD
-port 10 nsew
+port 10 nsew ground bidirectional
 flabel metal5 s 0 6960 200 7610 0 FreeSans 640 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 6940 200 7630 0 FreeSans 640 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 0 5990 200 6640 0 FreeSans 640 0 0 0 VSWITCH
-port 4 nsew
+port 4 nsew power bidirectional
 flabel metal4 s 0 5970 200 6660 0 FreeSans 640 0 0 0 VSWITCH
-port 4 nsew
+port 4 nsew power bidirectional
 flabel metal5 s 0 4780 200 5670 0 FreeSans 640 0 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal4 s 0 4760 200 5690 0 FreeSans 640 0 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal5 s 0 3570 200 4460 0 FreeSans 640 0 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal4 s 0 3550 200 4480 0 FreeSans 640 0 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal5 s 0 2600 200 3250 0 FreeSans 640 0 0 0 VDDA
-port 3 nsew
+port 3 nsew power bidirectional
 flabel metal4 s 0 2580 200 3270 0 FreeSans 640 0 0 0 VDDA
-port 3 nsew
+port 3 nsew power bidirectional
 flabel metal5 s 0 1390 200 2280 0 FreeSans 640 0 0 0 VCCD
-port 8 nsew
+port 8 nsew power bidirectional
 flabel metal4 s 0 1370 200 2300 0 FreeSans 640 0 0 0 VCCD
-port 8 nsew
+port 8 nsew power bidirectional
 flabel metal5 s 0 20 200 1070 0 FreeSans 640 0 0 0 VCCHIB
-port 6 nsew
+port 6 nsew power bidirectional
 flabel metal4 s 0 0 200 1090 0 FreeSans 640 0 0 0 VCCHIB
-port 6 nsew
+port 6 nsew power bidirectional
 flabel metal5 s 0 34750 200 39593 0 FreeSans 640 0 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 << properties >>
-string FIXED_BBOX 0 0 200 39593
 string LEFclass PAD SPACER
+string FIXED_BBOX 0 0 200 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_20um.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_20um.mag
new file mode 100644
index 0000000..60d8cdc
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_20um.mag
@@ -0,0 +1,149 @@
+magic
+tech sky130A
+magscale 1 2
+timestamp 1602609570
+<< metal4 >>
+rect 0 34750 4000 39593
+rect 0 13600 4000 18593
+rect 0 12410 4000 13300
+rect 0 11240 4000 12130
+rect 0 10874 4000 10940
+rect 0 10218 4000 10814
+rect 0 9922 4000 10158
+rect 0 9266 4000 9862
+rect 0 9140 4000 9206
+rect 0 7910 4000 8840
+rect 0 6940 4000 7630
+rect 0 5970 4000 6660
+rect 0 4760 4000 5690
+rect 0 3550 4000 4480
+rect 0 2580 4000 3270
+rect 0 1370 4000 2300
+rect 0 0 4000 1090
+<< metal5 >>
+rect 0 34750 4000 39593
+rect 0 13600 4000 18590
+rect 0 12430 4000 13280
+rect 0 11260 4000 12110
+rect 0 9140 4000 10940
+rect 0 7930 4000 8820
+rect 0 6960 4000 7610
+rect 0 5990 4000 6640
+rect 0 4780 4000 5670
+rect 0 3570 4000 4460
+rect 0 2600 4000 3250
+rect 0 1390 4000 2280
+rect 0 20 4000 1070
+<< labels >>
+flabel metal5 s 0 13600 200 18593 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 0 12430 200 13280 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal4 s 0 12410 200 13300 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal5 s 0 11260 200 12110 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal4 s 0 11240 200 12130 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal5 s 0 9140 200 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 10874 200 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 10218 200 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 9266 200 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 0 9140 200 9206 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 0 7930 200 8820 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal4 s 0 7910 200 8840 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal5 s 0 6960 200 7610 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 6940 200 7630 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 0 5990 200 6640 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal4 s 0 5970 200 6660 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal5 s 0 4780 200 5670 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal4 s 0 4760 200 5690 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 0 3570 200 4460 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal4 s 0 3550 200 4480 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 0 2600 200 3250 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal4 s 0 2580 200 3270 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal5 s 0 1390 200 2280 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal4 s 0 1370 200 2300 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal5 s 0 20 200 1070 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal4 s 0 0 200 1090 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal5 s 0 34750 200 39593 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 3800 13600 4000 18593 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 3800 12430 4000 13280 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal4 s 3800 12410 4000 13300 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal5 s 3800 11260 4000 12110 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal4 s 3800 11240 4000 12130 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal5 s 3800 9140 4000 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 3800 10874 4000 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 3800 10218 4000 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 3800 9266 4000 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 3800 9140 4000 9206 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 3800 7930 4000 8820 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal4 s 3800 7910 4000 8840 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal5 s 3800 6960 4000 7610 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 3800 6940 4000 7630 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 3800 5990 4000 6640 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal4 s 3800 5970 4000 6660 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal5 s 3800 4780 4000 5670 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal4 s 3800 4760 4000 5690 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 3800 3570 4000 4460 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal4 s 3800 3550 4000 4480 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 3800 2600 4000 3250 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal4 s 3800 2580 4000 3270 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal5 s 3800 1390 4000 2280 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal4 s 3800 1370 4000 2300 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal5 s 3800 20 4000 1070 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal4 s 3800 0 4000 1090 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal5 s 3800 34750 4000 39593 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+<< properties >>
+string LEFclass PAD SPACER
+string FIXED_BBOX 0 0 4000 39593
+<< end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_5um.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_5um.mag
new file mode 100644
index 0000000..b221239
--- /dev/null
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__com_bus_slice_5um.mag
@@ -0,0 +1,149 @@
+magic
+tech sky130A
+magscale 1 2
+timestamp 1602609416
+<< metal4 >>
+rect 0 34750 1000 39593
+rect 0 13600 1000 18593
+rect 0 12410 1000 13300
+rect 0 11240 1000 12130
+rect 0 10874 1000 10940
+rect 0 10218 1000 10814
+rect 0 9922 1000 10158
+rect 0 9266 1000 9862
+rect 0 9140 1000 9206
+rect 0 7910 1000 8840
+rect 0 6940 1000 7630
+rect 0 5970 1000 6660
+rect 0 4760 1000 5690
+rect 0 3550 1000 4480
+rect 0 2580 1000 3270
+rect 0 1370 1000 2300
+rect 0 0 1000 1090
+<< metal5 >>
+rect 0 34750 1000 39593
+rect 0 13600 1000 18590
+rect 0 12430 1000 13280
+rect 0 11260 1000 12110
+rect 0 9140 1000 10940
+rect 0 7930 1000 8820
+rect 0 6960 1000 7610
+rect 0 5990 1000 6640
+rect 0 4780 1000 5670
+rect 0 3570 1000 4460
+rect 0 2600 1000 3250
+rect 0 1390 1000 2280
+rect 0 20 1000 1070
+<< labels >>
+flabel metal5 s 0 13600 200 18593 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 0 12430 200 13280 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal4 s 0 12410 200 13300 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal5 s 0 11260 200 12110 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal4 s 0 11240 200 12130 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal5 s 0 9140 200 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 10874 200 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 10218 200 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 9266 200 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 0 9140 200 9206 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 0 7930 200 8820 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal4 s 0 7910 200 8840 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal5 s 0 6960 200 7610 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 0 6940 200 7630 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 0 5990 200 6640 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal4 s 0 5970 200 6660 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal5 s 0 4780 200 5670 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal4 s 0 4760 200 5690 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 0 3570 200 4460 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal4 s 0 3550 200 4480 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 0 2600 200 3250 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal4 s 0 2580 200 3270 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal5 s 0 1390 200 2280 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal4 s 0 1370 200 2300 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal5 s 0 20 200 1070 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal4 s 0 0 200 1090 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal5 s 0 34750 200 39593 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 800 13600 1000 18593 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 800 12430 1000 13280 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal4 s 800 12410 1000 13300 0 FreeSans 640 0 0 0 VDDIO_Q
+port 5 nsew power bidirectional
+flabel metal5 s 800 11260 1000 12110 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal4 s 800 11240 1000 12130 0 FreeSans 640 0 0 0 VSSIO_Q
+port 11 nsew ground bidirectional
+flabel metal5 s 800 9140 1000 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 800 10874 1000 10940 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 800 10218 1000 10814 0 FreeSans 640 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 800 9266 1000 9862 0 FreeSans 640 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 800 9140 1000 9206 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 800 7930 1000 8820 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal4 s 800 7910 1000 8840 0 FreeSans 640 0 0 0 VSSD
+port 10 nsew ground bidirectional
+flabel metal5 s 800 6960 1000 7610 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal4 s 800 6940 1000 7630 0 FreeSans 640 0 0 0 VSSA
+port 2 nsew ground bidirectional
+flabel metal5 s 800 5990 1000 6640 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal4 s 800 5970 1000 6660 0 FreeSans 640 0 0 0 VSWITCH
+port 4 nsew power bidirectional
+flabel metal5 s 800 4780 1000 5670 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal4 s 800 4760 1000 5690 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+flabel metal5 s 800 3570 1000 4460 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal4 s 800 3550 1000 4480 0 FreeSans 640 0 0 0 VDDIO
+port 7 nsew power bidirectional
+flabel metal5 s 800 2600 1000 3250 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal4 s 800 2580 1000 3270 0 FreeSans 640 0 0 0 VDDA
+port 3 nsew power bidirectional
+flabel metal5 s 800 1390 1000 2280 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal4 s 800 1370 1000 2300 0 FreeSans 640 0 0 0 VCCD
+port 8 nsew power bidirectional
+flabel metal5 s 800 20 1000 1070 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal4 s 800 0 1000 1090 0 FreeSans 640 0 0 0 VCCHIB
+port 6 nsew power bidirectional
+flabel metal5 s 800 34750 1000 39593 0 FreeSans 640 0 0 0 VSSIO
+port 9 nsew ground bidirectional
+<< properties >>
+string LEFclass PAD SPACER
+string FIXED_BBOX 0 0 1000 39593
+<< end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__corner_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__corner_pad.mag
index 067c4c1..17cad98 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__corner_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__corner_pad.mag
@@ -1,7 +1,9 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1576765820
+timestamp 1602597384
+<< error_s >>
+rect 3820 9372 3822 9497
 << metal4 >>
 rect 0 35957 254 40800
 rect 0 14807 254 19800
@@ -65,134 +67,134 @@
 rect 14007 0 18997 254
 rect 35157 0 40000 254
 use sky130_fd_io__corner_bus_overlay  sky130_fd_io__corner_bus_overlay_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1576765096
+timestamp 1602555073
 transform 1 0 0 0 1 67
 box 0 0 40000 40733
 << labels >>
 flabel metal5 s 0 10347 254 12147 3 FreeSans 520 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 127 11205 127 11205 3 FreeSans 520 180 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 0 7197 254 7847 3 FreeSans 520 180 0 0 VSWITCH
-port 4 nsew
+port 4 nsew power bidirectional
 flabel metal5 s 0 5987 254 6877 3 FreeSans 520 180 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal5 s 0 9137 254 10027 3 FreeSans 520 180 0 0 VSSD
-port 10 nsew
+port 10 nsew ground bidirectional
 flabel metal5 s 0 8168 254 8817 3 FreeSans 520 180 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 0 12467 254 13317 3 FreeSans 520 180 0 0 VSSIO_Q
-port 11 nsew
+port 11 nsew ground bidirectional
 flabel metal5 s 0 13637 254 14487 3 FreeSans 520 180 0 0 VDDIO_Q
-port 5 nsew
+port 5 nsew power bidirectional
 flabel metal5 s 0 14807 254 19797 3 FreeSans 520 180 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal5 s 0 3807 251 4457 3 FreeSans 520 180 0 0 VDDA
-port 3 nsew
+port 3 nsew power bidirectional
 flabel metal5 s 0 1227 254 2277 3 FreeSans 520 180 0 0 VCCHIB
-port 6 nsew
+port 6 nsew power bidirectional
 flabel metal5 s 0 2597 254 3487 3 FreeSans 520 180 0 0 VCCD
-port 8 nsew
+port 8 nsew power bidirectional
 flabel metal5 s 0 4777 254 5667 3 FreeSans 520 180 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal4 s 0 11425 100 12021 3 FreeSans 520 0 0 0 AMUXBUS_A
-port 0 nsew
+port 0 nsew signal bidirectional
 flabel metal4 s 0 10473 115 11069 3 FreeSans 520 0 0 0 AMUXBUS_B
-port 1 nsew
+port 1 nsew signal bidirectional
 flabel metal4 s 0 10347 254 10413 3 FreeSans 520 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 1207 254 2297 3 FreeSans 520 180 0 0 VCCHIB
-port 6 nsew
+port 6 nsew power bidirectional
 flabel metal4 s 0 2577 254 3507 3 FreeSans 520 180 0 0 VCCD
-port 8 nsew
+port 8 nsew power bidirectional
 flabel metal4 s 0 3787 251 4477 3 FreeSans 520 180 0 0 VDDA
-port 3 nsew
+port 3 nsew power bidirectional
 flabel metal4 s 0 4757 254 5687 3 FreeSans 520 180 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal4 s 0 5967 254 6897 3 FreeSans 520 180 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal4 s 0 7177 254 7867 3 FreeSans 520 180 0 0 VSWITCH
-port 4 nsew
+port 4 nsew power bidirectional
 flabel metal4 s 0 8147 254 8837 3 FreeSans 520 180 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 9117 254 10047 3 FreeSans 520 180 0 0 VSSD
-port 10 nsew
+port 10 nsew ground bidirectional
 flabel metal4 s 0 11129 254 11365 3 FreeSans 520 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 12081 254 12147 3 FreeSans 520 0 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 0 12447 254 13337 3 FreeSans 520 180 0 0 VSSIO_Q
-port 11 nsew
+port 11 nsew ground bidirectional
 flabel metal4 s 0 13617 254 14507 3 FreeSans 520 180 0 0 VDDIO_Q
-port 5 nsew
+port 5 nsew power bidirectional
 flabel metal4 s 0 14808 254 19800 3 FreeSans 520 180 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal4 s 0 35957 254 40800 3 FreeSans 520 180 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal4 s 127 38974 127 38974 3 FreeSans 520 180 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal5 s 3977 0 4867 254 3 FreeSans 520 270 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal5 s 1797 0 2687 254 3 FreeSans 520 270 0 0 VCCD
-port 8 nsew
+port 8 nsew power bidirectional
 flabel metal5 s 427 0 1477 254 3 FreeSans 520 270 0 0 VCCHIB
-port 6 nsew
+port 6 nsew power bidirectional
 flabel metal5 s 3007 0 3657 251 3 FreeSans 520 270 0 0 VDDA
-port 3 nsew
+port 3 nsew power bidirectional
 flabel metal5 s 14007 0 18997 254 3 FreeSans 520 270 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal5 s 12837 0 13687 254 3 FreeSans 520 270 0 0 VDDIO_Q
-port 5 nsew
+port 5 nsew power bidirectional
 flabel metal5 s 11667 0 12517 254 3 FreeSans 520 270 0 0 VSSIO_Q
-port 11 nsew
+port 11 nsew ground bidirectional
 flabel metal5 s 7368 0 8017 254 3 FreeSans 520 270 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 8337 0 9227 254 3 FreeSans 520 270 0 0 VSSD
-port 10 nsew
+port 10 nsew ground bidirectional
 flabel metal5 s 5187 0 6077 254 3 FreeSans 520 270 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal5 s 6397 0 7047 254 3 FreeSans 520 270 0 0 VSWITCH
-port 4 nsew
+port 4 nsew power bidirectional
 flabel metal5 s 9547 0 11347 254 3 FreeSans 520 270 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal5 s 10258 127 10258 127 3 FreeSans 520 90 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 14008 0 19000 254 3 FreeSans 520 270 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal4 s 12817 0 13707 254 3 FreeSans 520 270 0 0 VDDIO_Q
-port 5 nsew
+port 5 nsew power bidirectional
 flabel metal4 s 11647 0 12537 254 3 FreeSans 520 270 0 0 VSSIO_Q
-port 11 nsew
+port 11 nsew ground bidirectional
 flabel metal4 s 11281 0 11347 254 3 FreeSans 520 90 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 10329 0 10565 254 3 FreeSans 520 90 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 8317 0 9247 254 3 FreeSans 520 270 0 0 VSSD
-port 10 nsew
+port 10 nsew ground bidirectional
 flabel metal4 s 7347 0 8037 254 3 FreeSans 520 270 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 6377 0 7067 254 3 FreeSans 520 270 0 0 VSWITCH
-port 4 nsew
+port 4 nsew power bidirectional
 flabel metal4 s 5167 0 6097 254 3 FreeSans 520 270 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal4 s 3957 0 4887 254 3 FreeSans 520 270 0 0 VDDIO
-port 7 nsew
+port 7 nsew power bidirectional
 flabel metal4 s 2987 0 3677 251 3 FreeSans 520 270 0 0 VDDA
-port 3 nsew
+port 3 nsew power bidirectional
 flabel metal4 s 1777 0 2707 254 3 FreeSans 520 270 0 0 VCCD
-port 8 nsew
+port 8 nsew power bidirectional
 flabel metal4 s 407 0 1497 254 3 FreeSans 520 270 0 0 VCCHIB
-port 6 nsew
+port 6 nsew power bidirectional
 flabel metal4 s 9547 0 9613 254 3 FreeSans 520 90 0 0 VSSA
-port 2 nsew
+port 2 nsew ground bidirectional
 flabel metal4 s 10625 0 11221 100 3 FreeSans 520 90 0 0 AMUXBUS_A
-port 0 nsew
+port 0 nsew signal bidirectional
 flabel metal4 s 9673 0 10269 115 3 FreeSans 520 90 0 0 AMUXBUS_B
-port 1 nsew
+port 1 nsew signal bidirectional
 flabel metal4 s 35157 0 40000 254 3 FreeSans 520 270 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 flabel metal4 s 38174 127 38174 127 3 FreeSans 520 270 0 0 VSSIO
-port 9 nsew
+port 9 nsew ground bidirectional
 << properties >>
 string LEFclass ENDCAP TOPRIGHT
 string FIXED_BBOX 0 0 40000 40800
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__gpiov2_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__gpiov2_pad.mag
index 8432479..aeef6f8 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__gpiov2_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__gpiov2_pad.mag
@@ -1,7 +1,4291 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
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 << metal1 >>
 rect 12486 -407 12538 -351
 << metal2 >>
@@ -97,189 +4381,189 @@
 rect 15746 1390 16000 2280
 rect 0 20 254 1070
 rect 15746 20 16000 1070
+use sky130_fd_io__top_gpiov2  sky130_fd_io__top_gpiov2_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 0 0 1 -407
+box -143 -136 16134 40000
 use sky130_fd_io__overlay_gpiov2  sky130_fd_io__overlay_gpiov2_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 407 16000 40000
-use sky130_fd_io__top_gpiov2  sky130_fd_io__top_gpiov2_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
-transform 1 0 0 0 1 -407
-box -143 -7 16134 40000
 << labels >>
 flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
-port 34 nsew
+port 34 nsew ground bidirectional
 flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
-port 36 nsew
+port 36 nsew ground bidirectional
 flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
-port 37 nsew
+port 37 nsew power bidirectional
 flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
-port 30 nsew
+port 30 nsew power bidirectional
 flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
-port 28 nsew
+port 28 nsew power bidirectional
 flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
-port 32 nsew
+port 32 nsew power bidirectional
 flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
-port 29 nsew
+port 29 nsew power bidirectional
 flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
-port 32 nsew
+port 32 nsew power bidirectional
 flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
-port 28 nsew
+port 28 nsew power bidirectional
 flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
-port 37 nsew
+port 37 nsew power bidirectional
 flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
-port 36 nsew
+port 36 nsew ground bidirectional
 flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
-port 30 nsew
+port 30 nsew power bidirectional
 flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
-port 0 nsew
+port 0 nsew signal bidirectional
 flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
-port 34 nsew
+port 34 nsew ground bidirectional
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
-port 1 nsew
+port 1 nsew signal bidirectional
 flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
-port 29 nsew
+port 29 nsew power bidirectional
 flabel metal4 s 15873 37925 15873 37925 3 FreeSans 520 180 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal5 s 15746 9140 16000 10940 3 FreeSans 520 180 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal5 s 15807 2600 16000 3250 3 FreeSans 520 180 0 0 VDDA
-port 30 nsew
+port 30 nsew power bidirectional
 flabel metal5 s 15746 7930 16000 8820 3 FreeSans 520 180 0 0 VSSD
-port 34 nsew
+port 34 nsew ground bidirectional
 flabel metal5 s 15746 11260 16000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
-port 36 nsew
+port 36 nsew ground bidirectional
 flabel metal5 s 15746 4780 16000 5670 3 FreeSans 520 180 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal5 s 15746 5990 16000 6640 3 FreeSans 520 180 0 0 VSWITCH
-port 37 nsew
+port 37 nsew power bidirectional
 flabel metal5 s 15746 6961 16000 7610 3 FreeSans 520 180 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal5 s 15746 1390 16000 2280 3 FreeSans 520 180 0 0 VCCD
-port 28 nsew
+port 28 nsew power bidirectional
 flabel metal5 s 15746 12430 16000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
-port 32 nsew
+port 32 nsew power bidirectional
 flabel metal5 s 15746 13600 16000 18590 3 FreeSans 520 180 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal5 s 15746 20 16000 1070 3 FreeSans 520 180 0 0 VCCHIB
-port 29 nsew
+port 29 nsew power bidirectional
 flabel metal5 s 15746 3570 16000 4460 3 FreeSans 520 180 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal4 s 15746 7910 16000 8840 3 FreeSans 520 180 0 0 VSSD
-port 34 nsew
+port 34 nsew ground bidirectional
 flabel metal4 s 15807 2580 16000 3270 3 FreeSans 520 180 0 0 VDDA
-port 30 nsew
+port 30 nsew power bidirectional
 flabel metal4 s 15746 11240 16000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
-port 36 nsew
+port 36 nsew ground bidirectional
 flabel metal4 s 15746 4760 16000 5690 3 FreeSans 520 180 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal4 s 15746 5970 16000 6660 3 FreeSans 520 180 0 0 VSWITCH
-port 37 nsew
+port 37 nsew power bidirectional
 flabel metal4 s 15746 9922 16000 10158 3 FreeSans 520 180 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 15746 10874 16000 10940 3 FreeSans 520 180 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 15746 3550 16000 4480 3 FreeSans 520 180 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal4 s 15746 9140 16000 9206 3 FreeSans 520 180 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 15746 6940 16000 7630 3 FreeSans 520 180 0 0 VSSA
-port 33 nsew
+port 33 nsew ground bidirectional
 flabel metal4 s 15746 12410 16000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
-port 32 nsew
+port 32 nsew power bidirectional
 flabel metal4 s 15746 1370 16000 2300 3 FreeSans 520 180 0 0 VCCD
-port 28 nsew
+port 28 nsew power bidirectional
 flabel metal4 s 15746 9266 16000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
-port 1 nsew
+port 1 nsew signal bidirectional
 flabel metal4 s 15746 34750 16000 39593 3 FreeSans 520 180 0 0 VSSIO
-port 35 nsew
+port 35 nsew ground bidirectional
 flabel metal4 s 15746 10218 16000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
-port 0 nsew
+port 0 nse signal bidirectional
 flabel metal4 s 15746 13600 16000 18593 3 FreeSans 520 180 0 0 VDDIO
-port 31 nsew
+port 31 nsew power bidirectional
 flabel metal4 s 15746 0 16000 1090 3 FreeSans 520 180 0 0 VCCHIB
-port 29 nsew
+port 29 nsew power bidirectional
 flabel metal5 s 6423 24687 10731 28996 0 FreeSans 1600 0 0 0 PAD
-port 21 nsew
+port 21 nsew signal bidirectional
 flabel metal3 s 80 -407 204 -244 0 FreeSans 640 0 0 0 IN_H
-port 17 nsew
+port 17 nsew signal output
 flabel metal2 s 675 -407 721 -361 0 FreeSans 400 270 0 0 OE_N
-port 19 nsew
+port 19 nsew signal input
 flabel metal2 s 1084 -407 1130 -328 0 FreeSans 400 270 0 0 IB_MODE_SEL
-port 15 nsew
+port 15 nsew signal input
 flabel metal2 s 1226 -407 1278 -355 0 FreeSans 400 270 0 0 VTRIP_SEL
-port 38 nsew
+port 38 nsew signal input
 flabel metal2 s 2551 -407 2603 -363 0 FreeSans 400 270 0 0 ENABLE_VDDA_H
-port 10 nsew
+port 10 nsew signal input
 flabel metal2 s 3262 -407 3314 -306 0 FreeSans 400 270 0 0 ENABLE_VSWITCH_H
-port 12 nsew
+port 12 nsew signal input
 flabel metal2 s 4471 -407 4523 -340 0 FreeSans 400 0 0 0 OUT
-port 20 nsew
+port 20 nsew signal input
 flabel metal2 s 5320 -407 5372 -379 0 FreeSans 400 270 0 0 HLD_OVR
-port 14 nsew
-flabel metal2 s 5698 -407 5750 -355 0 FreeSans 400 270 0 0 DM<2>
-port 5 nsew
+port 14 nsew signal input
+flabel metal2 s 5698 -407 5750 -355 0 FreeSans 400 270 0 0 DM[2]
+port 5 nsew signal input
 flabel metal2 s 6150 -407 6202 -351 0 FreeSans 400 270 0 0 ANALOG_SEL
-port 4 nsew
+port 4 nsew signal input
 flabel metal2 s 6363 -407 6415 -363 0 FreeSans 400 270 0 0 HLD_H_N
-port 13 nsew
+port 13 nsew signal input
 flabel metal2 s 7092 -407 7144 -351 0 FreeSans 400 270 0 0 ENABLE_H
-port 8 nsew
+port 8 nsew signal input
 flabel metal2 s 7678 -407 7730 -318 0 FreeSans 400 270 0 0 ENABLE_INP_H
-port 9 nsew
+port 9 nsew signal input
 flabel metal2 s 9049 -407 9101 -355 0 FreeSans 400 270 0 0 INP_DIS
-port 18 nsew
+port 18 nsew signal input
 flabel metal3 s 9173 -407 9239 -355 0 FreeSans 400 270 0 0 ANALOG_POL
-port 3 nsew
-flabel metal2 s 9971 -407 10023 -355 0 FreeSans 400 270 0 0 DM<0>
-port 7 nsew
+port 3 nsew signal input
+flabel metal2 s 9971 -407 10023 -355 0 FreeSans 400 270 0 0 DM[0]
+port 7 nsew signal input
 flabel metal1 s 12486 -407 12538 -351 0 FreeSans 400 270 0 0 ANALOG_EN
-port 2 nsew
-flabel metal2 s 13367 -407 13419 -355 0 FreeSans 400 270 0 0 DM<1>
-port 6 nsew
+port 2 nsew signal input
+flabel metal2 s 13367 -407 13419 -355 0 FreeSans 400 270 0 0 DM[1]
+port 6 nsew signal input
 flabel metal2 s 15522 -407 15574 -363 0 FreeSans 400 270 0 0 SLOW
-port 25 nsew
+port 25 nsew signal input
 flabel metal3 s 15848 -407 15914 -244 0 FreeSans 400 270 0 0 IN
-port 16 nsew
+port 16 nsew signal output
 flabel metal3 s 12564 -407 12778 -260 0 FreeSans 400 270 0 0 PAD_A_NOESD_H
-port 24 nsew
+port 24 nsew signal bidirectional
 flabel metal2 s 13655 -407 13785 -363 0 FreeSans 400 270 0 0 PAD_A_ESD_1_H
-port 23 nsew
+port 23 nsew signal bidirectional
 flabel metal2 s 15256 -407 15384 -363 0 FreeSans 400 270 0 0 PAD_A_ESD_0_H
-port 22 nsew
+port 22 nsew signal bidirectional
 flabel metal2 s 15943 -407 15983 -215 0 FreeSans 400 270 0 0 TIE_LO_ESD
-port 27 nsew
+port 27 nsew signal output
 flabel metal2 s 15741 -407 15781 -363 0 FreeSans 400 270 0 0 TIE_HI_ESD
-port 26 nsew
+port 26 nsew signal output
 flabel metal3 s 15716 -407 15782 -254 0 FreeSans 400 270 0 0 ENABLE_VDDIO
-port 11 nsew
+port 11 nsew signal input
 << properties >>
 string LEFclass PAD INOUT
 string FIXED_BBOX 0 0 16000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_hvc_pad.mag
index 3a0bda1..91ba70a 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_hvc_pad.mag
@@ -1,7 +1,334 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1585845698
+timestamp 1602597384
+<< error_s >>
+rect 14469 39226 14535 39242
+rect 3098 36629 3170 38629
+rect 3369 36662 3487 38556
+rect 3758 36629 3818 38629
+rect 4018 36629 4090 38629
+rect 4289 36662 4407 38556
+rect 4678 36629 4738 38629
+rect 4938 36629 5010 38629
+rect 5209 36662 5327 38556
+rect 5598 36629 5658 38629
+rect 5858 36629 5930 38629
+rect 6129 36662 6247 38556
+rect 6518 36629 6578 38629
+rect 6778 36629 6850 38629
+rect 7049 36662 7167 38556
+rect 7438 36629 7498 38629
+rect 7698 36629 7770 38629
+rect 7969 36662 8087 38556
+rect 8358 36629 8418 38629
+rect 8618 36629 8690 38629
+rect 8889 36662 9007 38556
+rect 9278 36629 9338 38629
+rect 9538 36629 9610 38629
+rect 9809 36662 9927 38556
+rect 10198 36629 10258 38629
+rect 10458 36629 10530 38629
+rect 10729 36662 10847 38556
+rect 11118 36629 11178 38629
+rect 11378 36629 11450 38629
+rect 11649 36662 11767 38556
+rect 12038 36629 12098 38629
+rect 12298 36629 12370 38629
+rect 12569 36662 12687 38556
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+rect 3755 2778 3805 3778
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+rect 11865 1534 11915 2534
+rect 13515 1534 13565 2534
+rect 2905 290 2955 1290
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 << metal2 >>
 rect 99 -407 4879 -259
 rect 5179 -407 5579 -193
@@ -75,148 +402,148 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vccd_hvc  sky130_fd_io__overlay_vccd_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1585749841
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 407 15000 40000
-use sky130_fd_io__top_power_hvc_wpad  sky130_fd_io__top_power_hvc_wpad_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1585749839
+use sky130_fd_io__top_power_hvc_wpadv2  sky130_fd_io__top_power_hvc_wpadv2_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 0 15000 40000
 << labels >>
-flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 vccd
-port 11 nsew
-flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 drn_hvc
-port 2 nsew
-flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 drn_hvc
-port 2 nsew
-flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 vccd
-port 11 nsew
-flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 vccd
-port 11 nsew
-flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_lvc_pad.mag
index 702e404..43ed325 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vccd_lvc_pad.mag
@@ -1,7 +1,672 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
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+rect 5616 3414 5854 3438
+rect 5616 548 5617 3414
+rect 5592 525 5617 548
+rect 5854 525 5878 3414
+rect 5592 524 5878 525
+rect 5616 500 5640 524
+rect 5997 469 6297 3469
+rect 6440 3414 6678 3438
+rect 6440 548 6441 3414
+rect 6416 525 6441 548
+rect 6678 525 6702 3414
+rect 6416 524 6702 525
+rect 6440 500 6464 524
+rect 6821 469 7121 3469
+rect 7279 275 7315 3663
+rect 7329 275 7365 3663
+rect 7523 469 7823 3469
+rect 7966 3414 8204 3438
+rect 7966 548 7967 3414
+rect 7942 525 7967 548
+rect 8204 525 8228 3414
+rect 7942 524 8228 525
+rect 7966 500 7990 524
+rect 8347 469 8647 3469
+rect 8790 3414 9028 3438
+rect 8790 548 8791 3414
+rect 8766 525 8791 548
+rect 9028 525 9052 3414
+rect 8766 524 9052 525
+rect 8790 500 8814 524
+rect 9171 469 9471 3469
+rect 9614 3414 9852 3438
+rect 9614 548 9615 3414
+rect 9590 525 9615 548
+rect 9852 525 9876 3414
+rect 9590 524 9876 525
+rect 9614 500 9638 524
+rect 9995 469 10295 3469
+rect 10438 3414 10676 3438
+rect 10438 548 10439 3414
+rect 10414 525 10439 548
+rect 10676 525 10700 3414
+rect 10414 524 10700 525
+rect 10438 500 10462 524
+rect 10819 469 11119 3469
+rect 7279 239 7365 275
 << metal1 >>
 rect 6867 95 7067 195
 rect 5242 -7 5540 69
@@ -78,152 +743,150 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vccd_lvc  sky130_fd_io__overlay_vccd_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 7 15000 39600
 use sky130_fd_io__top_power_lvc_wpad  sky130_fd_io__top_power_lvc_wpad_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 0 15000 39600
 << labels >>
-flabel metal4 s 14873 37925 14873 37925 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 vccd
-port 15 nsew
-flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 src_bdy_lvc1
-port 4 nsew
-flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 src_bdy_lvc2
-port 5 nsew
-flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 bdy2_b2b
-port 6 nsew
-flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 drn_lvc2
-port 3 nsew
-flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 drn_lvc1
-port 2 nsew
-flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 vccd
-port 15 nsew
-flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 vccd
-port 15 nsew
-flabel metal1 s 6867 95 7067 195 0 FreeSans 300 0 0 0 vssi
-port 7 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal4 s 14873 37925 14873 37925 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 SRC_BDY_LVC1
+port 4 nsew ground bidirectional
+flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 SRC_BDY_LVC2
+port 5 nsew ground bidirectional
+flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 BDY2_B2B
+port 6 nsew ground bidirectional
+flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 DRN_LVC2
+port 3 nsew power bidirectional
+flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 DRN_LVC1
+port 2 nsew power bidirectional
+flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
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+port 16 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
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+port 14 nsew power bidirectional
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+port 15 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
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+port 9 nsew ground bidirectional
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+port 9 nsew ground bidirectional
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+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
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+port 14 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
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+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
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+port 9 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_hvc_pad.mag
index ee315bc..d527b50 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_hvc_pad.mag
@@ -1,7 +1,334 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
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+rect 3758 9029 3818 13029
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+rect 10198 9029 10258 13029
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+rect 11118 9029 11178 13029
+rect 11378 9029 11450 13029
+rect 11649 9062 11767 12996
+rect 12038 9029 12098 13029
+rect 12298 9029 12370 13029
+rect 12569 9062 12687 12996
+rect 12958 9029 13018 13029
+rect 214 8281 280 8297
+rect 1672 8281 1738 8297
+rect 14145 7996 14211 8012
+rect 1218 5553 1268 6953
+rect 1368 5553 1496 6953
+rect 1524 5553 1652 6953
+rect 1680 5553 1808 6953
+rect 1836 5553 1964 6953
+rect 1992 5553 2120 6953
+rect 2148 5553 2276 6953
+rect 2304 5553 2432 6953
+rect 2460 5553 2588 6953
+rect 2616 5553 2744 6953
+rect 2772 5553 2900 6953
+rect 2928 5553 3056 6953
+rect 3084 5553 3212 6953
+rect 3240 5553 3368 6953
+rect 3396 5553 3524 6953
+rect 3552 5553 3680 6953
+rect 3708 5553 3836 6953
+rect 3864 5553 3992 6953
+rect 4020 5553 4148 6953
+rect 4176 5553 4304 6953
+rect 4332 5553 4460 6953
+rect 4488 5553 4616 6953
+rect 4644 5553 4772 6953
+rect 4800 5553 4928 6953
+rect 4956 5553 5084 6953
+rect 5112 5553 5240 6953
+rect 5268 5553 5396 6953
+rect 5424 5553 5552 6953
+rect 5580 5553 5708 6953
+rect 5736 5553 5864 6953
+rect 5892 5553 6020 6953
+rect 6048 5553 6176 6953
+rect 6204 5553 6332 6953
+rect 6360 5553 6488 6953
+rect 6516 5553 6644 6953
+rect 6672 5553 6800 6953
+rect 6828 5553 6956 6953
+rect 6984 5553 7112 6953
+rect 7140 5553 7268 6953
+rect 7296 5553 7424 6953
+rect 7452 5553 7580 6953
+rect 7608 5553 7736 6953
+rect 7764 5553 7892 6953
+rect 7920 5553 8048 6953
+rect 8076 5553 8204 6953
+rect 8232 5553 8360 6953
+rect 8388 5553 8516 6953
+rect 8544 5553 8672 6953
+rect 8700 5553 8828 6953
+rect 8856 5553 8984 6953
+rect 9012 5553 9062 6953
+rect 10933 6109 10983 7509
+rect 11083 6109 11211 7509
+rect 11239 6109 11367 7509
+rect 11395 6109 11523 7509
+rect 11551 6109 11679 7509
+rect 11707 6109 11835 7509
+rect 11863 6109 11991 7509
+rect 12019 6109 12147 7509
+rect 12175 6109 12303 7509
+rect 12331 6109 12459 7509
+rect 12487 6109 12615 7509
+rect 12643 6109 12771 7509
+rect 12799 6109 12927 7509
+rect 12955 6109 13083 7509
+rect 13111 6109 13239 7509
+rect 13267 6109 13317 7509
+rect 11513 4022 11563 5022
+rect 12363 4022 12413 5022
+rect 12665 4022 12715 5022
+rect 13515 4022 13565 5022
+rect 2905 2778 2955 3778
+rect 3755 2778 3805 3778
+rect 4057 2778 4107 3778
+rect 5707 2778 5757 3778
+rect 6009 2778 6059 3778
+rect 7659 2778 7709 3778
+rect 7961 2778 8011 3778
+rect 9611 2778 9661 3778
+rect 9913 2778 9963 3778
+rect 11563 2778 11613 3778
+rect 11865 2778 11915 3778
+rect 13515 2778 13565 3778
+rect 2905 1534 2955 2534
+rect 3755 1534 3805 2534
+rect 4057 1534 4107 2534
+rect 5707 1534 5757 2534
+rect 6009 1534 6059 2534
+rect 7659 1534 7709 2534
+rect 7961 1534 8011 2534
+rect 9611 1534 9661 2534
+rect 9913 1534 9963 2534
+rect 11563 1534 11613 2534
+rect 11865 1534 11915 2534
+rect 13515 1534 13565 2534
+rect 2905 290 2955 1290
+rect 3755 290 3805 1290
+rect 4057 290 4107 1290
+rect 5707 290 5757 1290
+rect 6009 290 6059 1290
+rect 7659 290 7709 1290
+rect 7961 290 8011 1290
+rect 9611 290 9661 1290
+rect 9913 290 9963 1290
+rect 11563 290 11613 1290
+rect 11865 290 11915 1290
+rect 13515 290 13565 1290
 << metal2 >>
 rect 99 -407 4879 -259
 rect 5179 -407 5579 -211
@@ -74,153 +401,153 @@
 rect 14746 1390 15000 2280
 rect 0 20 254 1070
 rect 14746 20 15000 1070
-use sky130_fd_io__overlay_vccd_lvc  sky130_fd_io__overlay_vccd_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+use sky130_fd_io__overlay_vdda_lvc  sky130_fd_io__overlay_vdda_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 7 15000 39600
-use sky130_fd_io__top_power_hvc_wpad  sky130_fd_io__top_power_hvc_wpad_1 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+use sky130_fd_io__top_power_hvc_wpadv2  sky130_fd_io__top_power_hvc_wpadv2_1 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 0 15000 40000
 << labels >>
-flabel metal4 s 14873 37925 14873 37925 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 vdda
-port 6 nsew
-flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 drn_hvc
-port 2 nsew
-flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 drn_hvc
-port 2 nsew
-flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 vdda
-port 6 nsew
-flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 vdda
-port 6 nsew
-flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal4 s 14873 37925 14873 37925 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_lvc_pad.mag
index ef76fc7..b2f43bb 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vdda_lvc_pad.mag
@@ -1,7 +1,672 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
+rect 1668 39147 1734 39163
+rect 2691 37377 2692 37401
+rect 2772 37377 2773 37401
+rect 3245 37377 3246 37401
+rect 3326 37377 3327 37401
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+rect 12133 37353 12167 37365
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+rect 3799 35377 3800 35401
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+rect 4907 35377 4908 35401
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 << metal1 >>
 rect 6867 95 7067 195
 rect 5242 -7 5540 61
@@ -78,148 +743,146 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vdda_lvc  sky130_fd_io__overlay_vdda_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 7 15000 39600
 use sky130_fd_io__top_power_lvc_wpad  sky130_fd_io__top_power_lvc_wpad_1 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 0 15000 39600
 << labels >>
-flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 src_bdy_lvc1
-port 4 nsew
-flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 src_bdy_lvc2
-port 5 nsew
-flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 bdy2_b2b
-port 6 nsew
-flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 drn_lvc2
-port 3 nsew
-flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 drn_lvc1
-port 2 nsew
-flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 vdda
-port 10 nsew
-flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 vdda
-port 10 nsew
-flabel metal1 s 6867 95 7067 195 0 FreeSans 300 0 0 0 vssi
-port 7 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
-flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 vdda
-port 10 nsew
+flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 SRC_BDY_LVC1
+port 4 nsew ground bidirectional
+flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 SRC_BDY_LVC2
+port 5 nsew ground bidirectional
+flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 BDY2_B2B
+port 6 nsew ground bidirectional
+flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 DRN_LVC2
+port 3 nsew power bidirectional
+flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 DRN_LVC1
+port 2 nsew power bidirectional
+flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
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+port 10 nsew power bidirectional
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+port 17 nsew ground bidirectional
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+port 18 nsew ground bidirectional
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+port 16 nsew ground bidirectional
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+port 11 nsew power bidirectional
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+port 9 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
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+port 9 nsew ground bidirectional
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+port 13 nsew power bidirectional
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+port 17 nsew ground bidirectional
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+port 10 nsew power bidirectional
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+port 18 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
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+port 11 nsew power bidirectional
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+port 9 nsew ground bidirectional
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+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
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+port 14 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew power bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VDDA
+port 10 nsew power bidirectional
 << properties >>
 string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_hvc_pad.mag
index fc81ddc..35311bd 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_hvc_pad.mag
@@ -1,7 +1,334 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1585845698
+timestamp 1602597384
+<< error_s >>
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 << metal2 >>
 rect 99 -407 4879 -259
 rect 5179 -407 5579 -210
@@ -74,149 +401,149 @@
 rect 14746 1390 15000 2280
 rect 0 20 254 1070
 rect 14746 20 15000 1070
-use sky130_fd_io__overlay_vddio_hvc  sky130_fd_io__overlay_vddio_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1585749841
-transform 1 0 0 0 1 -407
-box 0 407 15000 40000
-use sky130_fd_io__top_power_hvc_wpad  sky130_fd_io__top_power_hvc_wpad_2 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1585749839
+use sky130_fd_io__top_power_hvc_wpadv2  sky130_fd_io__top_power_hvc_wpadv2_2 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 0 15000 40000
+use sky130_fd_io__overlay_vddio_hvc  sky130_fd_io__overlay_vddio_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 0 0 1 -407
+box 0 407 15000 40000
 << labels >>
-flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 drn_hvc
-port 2 nsew
-flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 drn_hvc
-port 2 nsew
-flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 vddio
-port 10 nsew
-flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 vddio
-port 10 nsew
-flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
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-port 7 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
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-port 9 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
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-port 6 nsew
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-port 5 nsew
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-port 5 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
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-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
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-port 8 nsew
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-port 11 nsew
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-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
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-port 0 nsew
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-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
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-port 8 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
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-port 7 nsew
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-port 9 nsew
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+port 2 nsew power bidirectional
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+port 4 nsew ground bidirectional
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+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
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+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
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+port 14 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
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+port 6 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
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+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_lvc_pad.mag
index f991844..692629c 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vddio_lvc_pad.mag
@@ -1,7 +1,672 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
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 << metal1 >>
 rect 6867 95 7067 195
 rect 5242 -7 5540 78
@@ -76,149 +741,147 @@
 rect 14746 1390 15000 2280
 rect 0 20 254 1070
 rect 14746 20 15000 1070
-use sky130_fd_io__overlay_vddio_lvc  sky130_fd_io__overlay_vddio_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
-transform 1 0 0 0 1 -7
-box 0 7 15000 39600
-use sky130_fd_io__top_power_lvc_wpad  sky130_fd_io__top_power_lvc_wpad_2 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io_/mag
-timestamp 1584046481
+use sky130_fd_io__top_power_lvc_wpad  sky130_fd_io__top_power_lvc_wpad_2 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 0 15000 39600
+use sky130_fd_io__overlay_vddio_lvc  sky130_fd_io__overlay_vddio_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 0 0 1 -7
+box 0 7 15000 39600
 << labels >>
-flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 vddio
-port 14 nsew
-flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 src_bdy_lvc1
-port 4 nsew
-flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 src_bdy_lvc2
-port 5 nsew
-flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 bdy2_b2b
-port 6 nsew
-flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 drn_lvc2
-port 3 nsew
-flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 drn_lvc1
-port 2 nsew
-flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 vddio
-port 14 nsew
-flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 vddio
-port 14 nsew
-flabel metal1 s 6867 95 7067 195 0 FreeSans 300 0 0 0 vssi
-port 7 nsew
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-port 9 nsew
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-port 10 nsew
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-port 17 nsew
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-port 18 nsew
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-port 16 nsew
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-port 11 nsew
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-port 9 nsew
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-port 15 nsew
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-port 12 nsew
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-port 14 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
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-port 10 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
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-port 17 nsew
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-port 10 nsew
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-port 18 nsew
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-port 16 nsew
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-port 11 nsew
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-port 9 nsew
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-port 9 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 SRC_BDY_LVC1
+port 4 nsew ground bidirectional
+flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 SRC_BDY_LVC2
+port 5 nsew ground bidirectional
+flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 BDY2_B2B
+port 6 nsew ground bidirectional
+flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 DRN_LVC2
+port 3 nsew power bidirectional
+flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 DRN_LVC1
+port 2 nsew power bidirectional
+flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag
index e52a917..4797656 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag
@@ -1,7 +1,328 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
+rect 3098 36629 3170 38629
+rect 3369 36662 3487 38556
+rect 3758 36629 3818 38629
+rect 4018 36629 4090 38629
+rect 4289 36662 4407 38556
+rect 4678 36629 4738 38629
+rect 4938 36629 5010 38629
+rect 5209 36662 5327 38556
+rect 5598 36629 5658 38629
+rect 5858 36629 5930 38629
+rect 6129 36662 6247 38556
+rect 6518 36629 6578 38629
+rect 6778 36629 6850 38629
+rect 7049 36662 7167 38556
+rect 7438 36629 7498 38629
+rect 7698 36629 7770 38629
+rect 7969 36662 8087 38556
+rect 8358 36629 8418 38629
+rect 8618 36629 8690 38629
+rect 8889 36662 9007 38556
+rect 9278 36629 9338 38629
+rect 9538 36629 9610 38629
+rect 9809 36662 9927 38556
+rect 10198 36629 10258 38629
+rect 10458 36629 10530 38629
+rect 10729 36662 10847 38556
+rect 11118 36629 11178 38629
+rect 11378 36629 11450 38629
+rect 11649 36662 11767 38556
+rect 12038 36629 12098 38629
+rect 12298 36629 12370 38629
+rect 12569 36662 12687 38556
+rect 12958 36629 13018 38629
+rect 3098 32029 3170 36029
+rect 3369 32062 3487 35996
+rect 3758 32029 3818 36029
+rect 4018 32029 4090 36029
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+rect 4678 32029 4738 36029
+rect 4938 32029 5010 36029
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+rect 6518 32029 6578 36029
+rect 6778 32029 6850 36029
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+rect 11118 32029 11178 36029
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+rect 3098 27429 3170 31429
+rect 3369 27462 3487 31396
+rect 3758 27429 3818 31429
+rect 4018 27429 4090 31429
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+rect 4938 27429 5010 31429
+rect 5209 27462 5327 31396
+rect 5598 27429 5658 31429
+rect 5858 27429 5930 31429
+rect 6129 27462 6247 31396
+rect 6518 27429 6578 31429
+rect 6778 27429 6850 31429
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+rect 7438 27429 7498 31429
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+rect 7969 27462 8087 31396
+rect 8358 27429 8418 31429
+rect 8618 27429 8690 31429
+rect 8889 27462 9007 31396
+rect 9278 27429 9338 31429
+rect 9538 27429 9610 31429
+rect 9809 27462 9927 31396
+rect 10198 27429 10258 31429
+rect 10458 27429 10530 31429
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+rect 11118 27429 11178 31429
+rect 11378 27429 11450 31429
+rect 11649 27462 11767 31396
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+rect 12298 27429 12370 31429
+rect 12569 27462 12687 31396
+rect 12958 27429 13018 31429
+rect 4938 22829 5010 26829
+rect 5209 22862 5327 26796
+rect 5598 22829 5658 26829
+rect 5858 22829 5930 26829
+rect 6129 22862 6247 26796
+rect 6518 22829 6578 26829
+rect 6778 22829 6850 26829
+rect 7049 22862 7167 26796
+rect 7438 22829 7498 26829
+rect 7698 22829 7770 26829
+rect 7969 22862 8087 26796
+rect 8358 22829 8418 26829
+rect 8618 22829 8690 26829
+rect 8889 22862 9007 26796
+rect 9278 22829 9338 26829
+rect 9538 22829 9610 26829
+rect 9809 22862 9927 26796
+rect 10198 22829 10258 26829
+rect 10458 22829 10530 26829
+rect 10729 22862 10847 26796
+rect 11118 22829 11178 26829
+rect 11378 22829 11450 26829
+rect 11649 22862 11767 26796
+rect 12038 22829 12098 26829
+rect 12298 22829 12370 26829
+rect 12569 22862 12687 26796
+rect 12958 22829 13018 26829
+rect 4938 18229 5010 22229
+rect 5209 18262 5327 22196
+rect 5598 18229 5658 22229
+rect 5858 18229 5930 22229
+rect 6129 18262 6247 22196
+rect 6518 18229 6578 22229
+rect 6778 18229 6850 22229
+rect 7049 18262 7167 22196
+rect 7438 18229 7498 22229
+rect 7698 18229 7770 22229
+rect 7969 18262 8087 22196
+rect 8358 18229 8418 22229
+rect 8618 18229 8690 22229
+rect 8889 18262 9007 22196
+rect 9278 18229 9338 22229
+rect 9538 18229 9610 22229
+rect 9809 18262 9927 22196
+rect 10198 18229 10258 22229
+rect 10458 18229 10530 22229
+rect 10729 18262 10847 22196
+rect 11118 18229 11178 22229
+rect 11378 18229 11450 22229
+rect 11649 18262 11767 22196
+rect 12038 18229 12098 22229
+rect 12298 18229 12370 22229
+rect 12569 18262 12687 22196
+rect 12958 18229 13018 22229
+rect 4938 13629 5010 17629
+rect 5209 13662 5327 17596
+rect 5598 13629 5658 17629
+rect 5858 13629 5930 17629
+rect 6129 13662 6247 17596
+rect 6518 13629 6578 17629
+rect 6778 13629 6850 17629
+rect 7049 13662 7167 17596
+rect 7438 13629 7498 17629
+rect 7698 13629 7770 17629
+rect 7969 13662 8087 17596
+rect 8358 13629 8418 17629
+rect 8618 13629 8690 17629
+rect 8889 13662 9007 17596
+rect 9278 13629 9338 17629
+rect 9538 13629 9610 17629
+rect 9809 13662 9927 17596
+rect 10198 13629 10258 17629
+rect 10458 13629 10530 17629
+rect 10729 13662 10847 17596
+rect 11118 13629 11178 17629
+rect 11378 13629 11450 17629
+rect 11649 13662 11767 17596
+rect 12038 13629 12098 17629
+rect 12298 13629 12370 17629
+rect 12569 13662 12687 17596
+rect 12958 13629 13018 17629
+rect 3098 9029 3170 13029
+rect 3369 9062 3487 12996
+rect 3758 9029 3818 13029
+rect 4018 9029 4090 13029
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+rect 4678 9029 4738 13029
+rect 4938 9029 5010 13029
+rect 5209 9062 5327 12996
+rect 5598 9029 5658 13029
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+rect 6129 9062 6247 12996
+rect 6518 9029 6578 13029
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+rect 8618 9029 8690 13029
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+rect 12569 9062 12687 12996
+rect 12958 9029 13018 13029
+rect 1218 5553 1268 6953
+rect 1368 5553 1496 6953
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+rect 1836 5553 1964 6953
+rect 1992 5553 2120 6953
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+rect 2928 5553 3056 6953
+rect 3084 5553 3212 6953
+rect 3240 5553 3368 6953
+rect 3396 5553 3524 6953
+rect 3552 5553 3680 6953
+rect 3708 5553 3836 6953
+rect 3864 5553 3992 6953
+rect 4020 5553 4148 6953
+rect 4176 5553 4304 6953
+rect 4332 5553 4460 6953
+rect 4488 5553 4616 6953
+rect 4644 5553 4772 6953
+rect 4800 5553 4928 6953
+rect 4956 5553 5084 6953
+rect 5112 5553 5240 6953
+rect 5268 5553 5396 6953
+rect 5424 5553 5552 6953
+rect 5580 5553 5708 6953
+rect 5736 5553 5864 6953
+rect 5892 5553 6020 6953
+rect 6048 5553 6176 6953
+rect 6204 5553 6332 6953
+rect 6360 5553 6488 6953
+rect 6516 5553 6644 6953
+rect 6672 5553 6800 6953
+rect 6828 5553 6956 6953
+rect 6984 5553 7112 6953
+rect 7140 5553 7268 6953
+rect 7296 5553 7424 6953
+rect 7452 5553 7580 6953
+rect 7608 5553 7736 6953
+rect 7764 5553 7892 6953
+rect 7920 5553 8048 6953
+rect 8076 5553 8204 6953
+rect 8232 5553 8360 6953
+rect 8388 5553 8516 6953
+rect 8544 5553 8672 6953
+rect 8700 5553 8828 6953
+rect 8856 5553 8984 6953
+rect 9012 5553 9062 6953
+rect 10933 6109 10983 7509
+rect 11083 6109 11211 7509
+rect 11239 6109 11367 7509
+rect 11395 6109 11523 7509
+rect 11551 6109 11679 7509
+rect 11707 6109 11835 7509
+rect 11863 6109 11991 7509
+rect 12019 6109 12147 7509
+rect 12175 6109 12303 7509
+rect 12331 6109 12459 7509
+rect 12487 6109 12615 7509
+rect 12643 6109 12771 7509
+rect 12799 6109 12927 7509
+rect 12955 6109 13083 7509
+rect 13111 6109 13239 7509
+rect 13267 6109 13317 7509
+rect 11513 4022 11563 5022
+rect 12363 4022 12413 5022
+rect 12665 4022 12715 5022
+rect 13515 4022 13565 5022
+rect 2905 2778 2955 3778
+rect 3755 2778 3805 3778
+rect 4057 2778 4107 3778
+rect 5707 2778 5757 3778
+rect 6009 2778 6059 3778
+rect 7659 2778 7709 3778
+rect 7961 2778 8011 3778
+rect 9611 2778 9661 3778
+rect 9913 2778 9963 3778
+rect 11563 2778 11613 3778
+rect 11865 2778 11915 3778
+rect 13515 2778 13565 3778
+rect 2905 1534 2955 2534
+rect 3755 1534 3805 2534
+rect 4057 1534 4107 2534
+rect 5707 1534 5757 2534
+rect 6009 1534 6059 2534
+rect 7659 1534 7709 2534
+rect 7961 1534 8011 2534
+rect 9611 1534 9661 2534
+rect 9913 1534 9963 2534
+rect 11563 1534 11613 2534
+rect 11865 1534 11915 2534
+rect 13515 1534 13565 2534
+rect 2905 290 2955 1290
+rect 3755 290 3805 1290
+rect 4057 290 4107 1290
+rect 5707 290 5757 1290
+rect 6009 290 6059 1290
+rect 7659 290 7709 1290
+rect 7961 290 8011 1290
+rect 9611 290 9661 1290
+rect 9913 290 9963 1290
+rect 11563 290 11613 1290
+rect 11865 290 11915 1290
+rect 13515 290 13565 1290
 << metal2 >>
 rect 99 -407 4879 -259
 rect 5179 -407 5579 -184
@@ -77,148 +398,148 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vssa_hvc  sky130_fd_io__overlay_vssa_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 407 15000 40000
 use sky130_fd_io__top_ground_hvc_wpad  sky130_fd_io__top_ground_hvc_wpad_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 0 15000 40000
 << labels >>
-flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 vssio
-port 15 nsew
-flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 drn_hvc
-port 2 nsew
-flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 drn_hvc
-port 2 nsew
-flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 vssa
-port 5 nsew
-flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 vssa
-port 5 nsew
-flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
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-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
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+port 5 nsew ground bidirectional
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+port 12 nsew ground bidirectional
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+port 15 nsew ground bidirectional
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+port 2 nsew power bidirectional
+flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
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+port 2 nsew power bidirectional
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+port 5 nsew ground bidirectional
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+port 5 nsew ground bidirectional
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+port 10 nsew power bidirectional
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+port 9 nsew power bidirectional
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+port 14 nsew ground bidirectional
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+port 1 nsew signal bidirectional
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+port 12 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
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+port 10 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
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+port 10 nsew power bidirectional
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+port 8 nsew power bidirectional
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+port 10 nsew power bidirectional
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+port 11 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD GROUND
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag
index 68ef59c..2a78a14 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag
@@ -1,7 +1,672 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
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 << metal1 >>
 rect 6867 95 7067 195
 rect 5242 -7 5540 84
@@ -79,148 +744,146 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vssa_lvc  sky130_fd_io__overlay_vssa_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 7 15000 39600
 use sky130_fd_io__top_ground_lvc_wpad  sky130_fd_io__top_ground_lvc_wpad_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 0 15000 39600
 << labels >>
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
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-port 15 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
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-port 11 nsew
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-port 16 nsew
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-port 18 nsew
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-port 10 nsew
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-port 13 nsew
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-port 9 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
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-port 10 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
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-port 12 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
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-port 9 nsew
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-port 11 nsew
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-port 16 nsew
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-port 18 nsew
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-port 17 nsew
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-port 10 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal1 s 6867 95 7067 195 0 FreeSans 300 0 0 0 vssi
-port 7 nsew
-flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 vssa
-port 9 nsew
-flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 vssa
-port 9 nsew
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-port 2 nsew
-flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 drn_lvc2
-port 3 nsew
-flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 bdy2_b2b
-port 6 nsew
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-port 5 nsew
-flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 src_bdy_lvc1
-port 4 nsew
-flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 vssa
-port 9 nsew
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
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+port 9 nsew ground bidirectional
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+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
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+port 10 nsew power bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
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+port 14 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
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+port 14 nsew power bidirectional
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+port 0 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
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+port 15 nsew power bidirectional
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+port 12 nsew power bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
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+port 14 nsew power bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
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+port 9 nsew ground bidirectional
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+port 9 nsew ground bidirectional
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+port 11 nsew power bidirectional
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+port 16 nsew ground bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
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+port 10 nsew power bidirectional
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+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
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+port 14 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 DRN_LVC1
+port 2 nsew power bidirectional
+flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 DRN_LVC2
+port 3 nsew power bidirectional
+flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 BDY2_B2B
+port 6 nsew ground bidirectional
+flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 SRC_BDY_LVC2
+port 5 nsew ground bidirectional
+flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 SRC_BDY_LVC1
+port 4 nsew ground bidirectional
+flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VSSA
+port 9 nsew ground bidirectional
 << properties >>
 string LEFclass PAD GROUND
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag
index 969fd80..121c696 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag
@@ -1,7 +1,328 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
+rect 3098 36629 3170 38629
+rect 3369 36662 3487 38556
+rect 3758 36629 3818 38629
+rect 4018 36629 4090 38629
+rect 4289 36662 4407 38556
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+rect 5424 5553 5552 6953
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+rect 6516 5553 6644 6953
+rect 6672 5553 6800 6953
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+rect 7764 5553 7892 6953
+rect 7920 5553 8048 6953
+rect 8076 5553 8204 6953
+rect 8232 5553 8360 6953
+rect 8388 5553 8516 6953
+rect 8544 5553 8672 6953
+rect 8700 5553 8828 6953
+rect 8856 5553 8984 6953
+rect 9012 5553 9062 6953
+rect 10933 6109 10983 7509
+rect 11083 6109 11211 7509
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+rect 11551 6109 11679 7509
+rect 11707 6109 11835 7509
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+rect 13267 6109 13317 7509
+rect 11513 4022 11563 5022
+rect 12363 4022 12413 5022
+rect 12665 4022 12715 5022
+rect 13515 4022 13565 5022
+rect 2905 2778 2955 3778
+rect 3755 2778 3805 3778
+rect 4057 2778 4107 3778
+rect 5707 2778 5757 3778
+rect 6009 2778 6059 3778
+rect 7659 2778 7709 3778
+rect 7961 2778 8011 3778
+rect 9611 2778 9661 3778
+rect 9913 2778 9963 3778
+rect 11563 2778 11613 3778
+rect 11865 2778 11915 3778
+rect 13515 2778 13565 3778
+rect 2905 1534 2955 2534
+rect 3755 1534 3805 2534
+rect 4057 1534 4107 2534
+rect 5707 1534 5757 2534
+rect 6009 1534 6059 2534
+rect 7659 1534 7709 2534
+rect 7961 1534 8011 2534
+rect 9611 1534 9661 2534
+rect 9913 1534 9963 2534
+rect 11563 1534 11613 2534
+rect 11865 1534 11915 2534
+rect 13515 1534 13565 2534
+rect 2905 290 2955 1290
+rect 3755 290 3805 1290
+rect 4057 290 4107 1290
+rect 5707 290 5757 1290
+rect 6009 290 6059 1290
+rect 7659 290 7709 1290
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 << metal2 >>
 rect 99 -407 4879 -259
 rect 5179 -407 5579 -182
@@ -75,148 +396,148 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vssd_hvc  sky130_fd_io__overlay_vssd_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 407 15000 40000
 use sky130_fd_io__top_ground_hvc_wpad  sky130_fd_io__top_ground_hvc_wpad_1 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 0 15000 40000
 << labels >>
-flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 vssd
-port 13 nsew
-flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 drn_hvc
-port 2 nsew
-flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 drn_hvc
-port 2 nsew
-flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 vssd
-port 13 nsew
-flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 vssd
-port 13 nsew
-flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD GROUND
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag
index 12dbdda..9e8e8b4 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag
@@ -1,7 +1,672 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
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+rect 7677 5377 7678 5401
+rect 7758 5377 7759 5401
+rect 8231 5377 8232 5401
+rect 8312 5377 8313 5401
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+rect 10528 5377 10529 5401
+rect 11001 5377 11002 5401
+rect 11082 5377 11083 5401
+rect 11555 5377 11556 5401
+rect 11636 5377 11637 5401
+rect 12109 5377 12110 5401
+rect 12190 5377 12191 5401
+rect 12663 5377 12664 5401
+rect 12744 5377 12745 5401
+rect 13217 5377 13218 5401
+rect 13298 5377 13299 5401
+rect 2715 5353 2749 5365
+rect 3269 5353 3303 5365
+rect 3823 5353 3857 5365
+rect 4377 5353 4411 5365
+rect 4931 5353 4965 5365
+rect 5485 5353 5519 5365
+rect 6039 5353 6073 5365
+rect 6593 5353 6627 5365
+rect 7147 5353 7181 5365
+rect 7701 5353 7735 5365
+rect 8255 5353 8289 5365
+rect 8809 5353 8843 5365
+rect 9363 5353 9397 5365
+rect 9917 5353 9951 5365
+rect 10471 5353 10505 5365
+rect 11025 5353 11059 5365
+rect 11579 5353 11613 5365
+rect 12133 5353 12167 5365
+rect 12687 5353 12721 5365
+rect 13241 5353 13275 5365
+rect 48 3833 114 3849
+rect 7279 3663 7365 3699
+rect 3525 469 3825 3469
+rect 3968 3414 4206 3438
+rect 3968 548 3969 3414
+rect 3944 525 3969 548
+rect 4206 525 4230 3414
+rect 3944 524 4230 525
+rect 3968 500 3992 524
+rect 4349 469 4649 3469
+rect 4792 3414 5030 3438
+rect 4792 548 4793 3414
+rect 4768 525 4793 548
+rect 5030 525 5054 3414
+rect 4768 524 5054 525
+rect 4792 500 4816 524
+rect 5173 469 5473 3469
+rect 5616 3414 5854 3438
+rect 5616 548 5617 3414
+rect 5592 525 5617 548
+rect 5854 525 5878 3414
+rect 5592 524 5878 525
+rect 5616 500 5640 524
+rect 5997 469 6297 3469
+rect 6440 3414 6678 3438
+rect 6440 548 6441 3414
+rect 6416 525 6441 548
+rect 6678 525 6702 3414
+rect 6416 524 6702 525
+rect 6440 500 6464 524
+rect 6821 469 7121 3469
+rect 7279 275 7315 3663
+rect 7329 275 7365 3663
+rect 7523 469 7823 3469
+rect 7966 3414 8204 3438
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+rect 8204 525 8228 3414
+rect 7942 524 8228 525
+rect 7966 500 7990 524
+rect 8347 469 8647 3469
+rect 8790 3414 9028 3438
+rect 8790 548 8791 3414
+rect 8766 525 8791 548
+rect 9028 525 9052 3414
+rect 8766 524 9052 525
+rect 8790 500 8814 524
+rect 9171 469 9471 3469
+rect 9614 3414 9852 3438
+rect 9614 548 9615 3414
+rect 9590 525 9615 548
+rect 9852 525 9876 3414
+rect 9590 524 9876 525
+rect 9614 500 9638 524
+rect 9995 469 10295 3469
+rect 10438 3414 10676 3438
+rect 10438 548 10439 3414
+rect 10414 525 10439 548
+rect 10676 525 10700 3414
+rect 10414 524 10700 525
+rect 10438 500 10462 524
+rect 10819 469 11119 3469
+rect 7279 239 7365 275
 << metal1 >>
 rect 6867 95 7067 195
 rect 5242 -7 5540 83
@@ -78,152 +743,150 @@
 rect 0 20 254 1070
 rect 14746 20 15000 1070
 use sky130_fd_io__overlay_vssd_lvc  sky130_fd_io__overlay_vssd_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 7 15000 39600
 use sky130_fd_io__top_ground_lvc_wpad  sky130_fd_io__top_ground_lvc_wpad_1 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 0 15000 39600
 << labels >>
-flabel metal4 s 14873 37925 14873 37925 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 vssd
-port 17 nsew
-flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 src_bdy_lvc1
-port 4 nsew
-flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 src_bdy_lvc2
-port 5 nsew
-flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 bdy2_b2b
-port 6 nsew
-flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 drn_lvc2
-port 3 nsew
-flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 drn_lvc1
-port 2 nsew
-flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 vssd
-port 17 nsew
-flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
-flabel metal1 s 6867 95 7067 195 0 FreeSans 300 0 0 0 vssi
-port 7 nsew
+flabel metal4 s 14873 37925 14873 37925 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 127 37925 127 37925 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 SRC_BDY_LVC1
+port 4 nsew ground bidirectional
+flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 SRC_BDY_LVC2
+port 5 nsew ground bidirectional
+flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 BDY2_B2B
+port 6 nsew ground bidirectional
+flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 DRN_LVC2
+port 3 nsew power bidirectional
+flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 DRN_LVC1
+port 2 nsew power bidirectional
+flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD GROUND
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag
index 66d9432..2d23576 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag
@@ -1,7 +1,328 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
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+rect 3369 36662 3487 38556
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+rect 12363 4022 12413 5022
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+rect 13515 4022 13565 5022
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+rect 4057 1534 4107 2534
+rect 5707 1534 5757 2534
+rect 6009 1534 6059 2534
+rect 7659 1534 7709 2534
+rect 7961 1534 8011 2534
+rect 9611 1534 9661 2534
+rect 9913 1534 9963 2534
+rect 11563 1534 11613 2534
+rect 11865 1534 11915 2534
+rect 13515 1534 13565 2534
+rect 2905 290 2955 1290
+rect 3755 290 3805 1290
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+rect 7961 290 8011 1290
+rect 9611 290 9661 1290
+rect 9913 290 9963 1290
+rect 11563 290 11613 1290
+rect 11865 290 11915 1290
+rect 13515 290 13565 1290
 << metal2 >>
 rect 99 -407 4879 -259
 rect 5179 -407 5579 -181
@@ -77,149 +398,149 @@
 rect 14746 1390 15000 2280
 rect 0 20 254 1070
 rect 14746 20 15000 1070
-use sky130_fd_io__overlay_vssio_hvc  sky130_fd_io__overlay_vssio_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
-transform 1 0 0 0 1 -407
-box 0 407 15000 40000
 use sky130_fd_io__top_ground_hvc_wpad  sky130_fd_io__top_ground_hvc_wpad_2 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -407
 box 0 0 15000 40000
+use sky130_fd_io__overlay_vssio_hvc  sky130_fd_io__overlay_vssio_hvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 0 0 1 -407
+box 0 407 15000 40000
 << labels >>
-flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 drn_hvc
-port 2 nsew
-flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 drn_hvc
-port 2 nsew
-flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 vssio
-port 12 nsew
-flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 vssio
-port 12 nsew
-flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 src_bdy_hvc
-port 4 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 13 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 6 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 7 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 9 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 5 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 11 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 12 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 8 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 10 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 11 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 7 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 9 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 14 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 12 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 6 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 5 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 13 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal5 s 7329 27458 7594 28780 0 FreeSans 2000 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 127 37914 127 37914 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14873 37914 14873 37914 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal2 s 10078 -407 14858 -259 2 FreeSans 2000 90 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal2 s 99 -407 4879 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal3 s 7578 -407 9778 -89 0 FreeSans 2000 0 0 0 DRN_HVC
+port 2 nsew power bidirectional
+flabel metal3 s 99 -407 4879 -16 0 FreeSans 2000 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal3 s 10078 -407 14858 -16 0 FreeSans 2000 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal3 s 5179 -407 7379 -259 2 FreeSans 2000 90 0 0 SRC_BDY_HVC
+port 4 nsew ground bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 8 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 10 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 11 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 7 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 9 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 14 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 12 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 6 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 5 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 13 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD GROUND
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag
index 299a01f..4fa1d2a 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag
@@ -1,7 +1,672 @@
 magic
 tech sky130A
 magscale 1 2
-timestamp 1584473789
+timestamp 1602597384
+<< error_s >>
+rect 1668 39147 1734 39163
+rect 2691 37377 2692 37401
+rect 2772 37377 2773 37401
+rect 3245 37377 3246 37401
+rect 3326 37377 3327 37401
+rect 3799 37377 3800 37401
+rect 3880 37377 3881 37401
+rect 4353 37377 4354 37401
+rect 4434 37377 4435 37401
+rect 4907 37377 4908 37401
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+rect 5461 37377 5462 37401
+rect 5542 37377 5543 37401
+rect 6015 37377 6016 37401
+rect 6096 37377 6097 37401
+rect 6569 37377 6570 37401
+rect 6650 37377 6651 37401
+rect 7123 37377 7124 37401
+rect 7204 37377 7205 37401
+rect 7677 37377 7678 37401
+rect 7758 37377 7759 37401
+rect 8231 37377 8232 37401
+rect 8312 37377 8313 37401
+rect 8785 37377 8786 37401
+rect 8866 37377 8867 37401
+rect 9339 37377 9340 37401
+rect 9420 37377 9421 37401
+rect 9893 37377 9894 37401
+rect 9974 37377 9975 37401
+rect 10447 37377 10448 37401
+rect 10528 37377 10529 37401
+rect 11001 37377 11002 37401
+rect 11082 37377 11083 37401
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 << metal1 >>
 rect 6867 95 7067 195
 rect 5242 -7 5540 74
@@ -78,149 +743,147 @@
 rect 14746 1390 15000 2280
 rect 0 20 254 1070
 rect 14746 20 15000 1070
-use sky130_fd_io__overlay_vssio_lvc  sky130_fd_io__overlay_vssio_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
-transform 1 0 0 0 1 -7
-box 0 7 15000 39600
 use sky130_fd_io__top_ground_lvc_wpad  sky130_fd_io__top_ground_lvc_wpad_2 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
-timestamp 1584046481
+timestamp 1602555073
 transform 1 0 0 0 1 -7
 box 0 0 15000 39600
+use sky130_fd_io__overlay_vssio_lvc  sky130_fd_io__overlay_vssio_lvc_0 ~/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_io/mag
+timestamp 1602555073
+transform 1 0 0 0 1 -7
+box 0 7 15000 39600
 << labels >>
-flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 vssio
-port 16 nsew
-flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 src_bdy_lvc1
-port 4 nsew
-flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 src_bdy_lvc2
-port 5 nsew
-flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 bdy2_b2b
-port 6 nsew
-flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 drn_lvc2
-port 3 nsew
-flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 drn_lvc1
-port 2 nsew
-flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 vssio
-port 16 nsew
-flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 vssio
-port 16 nsew
-flabel metal1 s 6867 95 7067 195 0 FreeSans 300 0 0 0 vssi
-port 7 nsew
-flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 vssd
-port 17 nsew
-flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 vdda
-port 10 nsew
-flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 vswitch
-port 11 nsew
-flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 vcchib
-port 13 nsew
-flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 vssa
-port 9 nsew
-flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 vccd
-port 15 nsew
-flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 amuxbus_b
-port 1 nsew
-flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 vssio
-port 16 nsew
-flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 vddio_q
-port 12 nsew
-flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 vddio
-port 14 nsew
-flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 vccd
-port 15 nsew
-flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 vswitch
-port 11 nsew
-flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 vcchib
-port 13 nsew
-flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 vssio_q
-port 18 nsew
-flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 vssio
-port 16 nsew
-flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 vdda
-port 10 nsew
-flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 amuxbus_a
-port 0 nsew
-flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 vssa
-port 9 nsew
-flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 vssd
-port 17 nsew
-flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 amuxbus_b
-port 1 nsew
+flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal2 s 100 -7 4099 287 0 FreeSans 2000 0 0 0 SRC_BDY_LVC1
+port 4 nsew ground bidirectional
+flabel metal2 s 10953 -7 14940 715 0 FreeSans 2000 0 0 0 SRC_BDY_LVC2
+port 5 nsew ground bidirectional
+flabel metal2 s 6888 -7 8888 58 0 FreeSans 400 0 0 0 BDY2_B2B
+port 6 nsew ground bidirectional
+flabel metal3 s 7676 -7 9850 918 0 FreeSans 2000 0 0 0 DRN_LVC2
+port 3 nsew power bidirectional
+flabel metal3 s 5200 -7 7374 918 0 FreeSans 2000 0 0 0 DRN_LVC1
+port 2 nsew power bidirectional
+flabel metal3 s 10151 -7 14940 862 0 FreeSans 4000 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal3 s 100 -7 4900 862 0 FreeSans 2000 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 14746 9140 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14807 2600 15000 3250 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 14746 7930 15000 8820 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 14746 11260 15000 12110 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 14746 4780 15000 5670 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 14746 5990 15000 6640 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 14746 6961 15000 7610 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 14746 1390 15000 2280 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 14746 12430 15000 13280 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 14746 13600 15000 18590 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 14746 20 15000 1070 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal5 s 14746 3570 15000 4460 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 13600 254 18590 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 7930 254 8820 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal5 s 0 11260 254 12110 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal5 s 0 5990 254 6640 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal5 s 0 4780 254 5670 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal5 s 0 2600 193 3250 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal5 s 0 3570 254 4460 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal5 s 0 1390 254 2280 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal5 s 0 12430 254 13280 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal5 s 0 9140 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 6961 254 7610 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal5 s 0 20 254 1070 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 14746 7910 15000 8840 3 FreeSans 520 180 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 14807 2580 15000 3270 3 FreeSans 520 180 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 14746 11240 15000 12130 3 FreeSans 520 180 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 14746 4760 15000 5690 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 5970 15000 6660 3 FreeSans 520 180 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 14746 9922 15000 10158 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 10874 15000 10940 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 0 15000 1090 3 FreeSans 520 180 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 14746 3550 15000 4480 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 14746 9140 15000 9206 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 6940 15000 7630 3 FreeSans 520 180 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 14746 12410 15000 13300 3 FreeSans 520 180 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 14746 1370 15000 2300 3 FreeSans 520 180 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 14746 9266 15000 9862 3 FreeSans 520 180 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
+flabel metal4 s 14746 34750 15000 39593 3 FreeSans 520 180 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 14746 10218 15000 10814 3 FreeSans 520 180 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 14746 13600 15000 18593 3 FreeSans 520 180 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 34750 254 39593 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 3550 254 4480 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 12410 254 13300 3 FreeSans 520 0 0 0 VDDIO_Q
+port 12 nsew power bidirectional
+flabel metal4 s 0 13600 254 18593 3 FreeSans 520 0 0 0 VDDIO
+port 14 nsew power bidirectional
+flabel metal4 s 0 1370 254 2300 3 FreeSans 520 0 0 0 VCCD
+port 15 nsew power bidirectional
+flabel metal4 s 0 9140 254 9206 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 5970 254 6660 3 FreeSans 520 0 0 0 VSWITCH
+port 11 nsew power bidirectional
+flabel metal4 s 0 0 254 1090 3 FreeSans 520 0 0 0 VCCHIB
+port 13 nsew power bidirectional
+flabel metal4 s 0 9922 254 10158 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 11240 254 12130 3 FreeSans 520 0 0 0 VSSIO_Q
+port 18 nsew ground bidirectional
+flabel metal4 s 0 4760 254 5690 3 FreeSans 520 0 0 0 VSSIO
+port 16 nsew ground bidirectional
+flabel metal4 s 0 2580 193 3270 3 FreeSans 520 0 0 0 VDDA
+port 10 nsew power bidirectional
+flabel metal4 s 0 10218 254 10814 3 FreeSans 520 0 0 0 AMUXBUS_A
+port 0 nsew signal bidirectional
+flabel metal4 s 0 10874 254 10940 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 6940 254 7630 3 FreeSans 520 0 0 0 VSSA
+port 9 nsew ground bidirectional
+flabel metal4 s 0 7910 254 8840 3 FreeSans 520 0 0 0 VSSD
+port 17 nsew ground bidirectional
+flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
+port 1 nsew signal bidirectional
 << properties >>
 string LEFclass PAD GROUND
 string FIXED_BBOX 0 0 15000 39593
diff --git a/sky130/custom/sky130_fd_io/verilog/sky130_ef_io.v b/sky130/custom/sky130_fd_io/verilog/sky130_ef_io.v
index ea1de76..afb2880 100644
--- a/sky130/custom/sky130_fd_io/verilog/sky130_ef_io.v
+++ b/sky130/custom/sky130_fd_io/verilog/sky130_ef_io.v
@@ -624,11 +624,71 @@
 
 endmodule
 
+module sky130_ef_io__com_bus_slice_5um (AMUXBUS_A, AMUXBUS_B,
+	VSSA, VDDA, VSWITCH, VDDIO_Q, VCCHIB, VDDIO, VCCD,
+	VSSIO, VSSD, VSSIO_Q
+);
+  inout AMUXBUS_A;
+  inout AMUXBUS_B;
+
+  inout VDDIO;	
+  inout VDDIO_Q;	
+  inout VDDA;
+  inout VCCD;
+  inout VSWITCH;
+  inout VCCHIB;
+  inout VSSA;
+  inout VSSD;
+  inout VSSIO_Q;
+  inout VSSIO;
+
+endmodule
+
+module sky130_ef_io__com_bus_slice_10um (AMUXBUS_A, AMUXBUS_B,
+	VSSA, VDDA, VSWITCH, VDDIO_Q, VCCHIB, VDDIO, VCCD,
+	VSSIO, VSSD, VSSIO_Q
+);
+  inout AMUXBUS_A;
+  inout AMUXBUS_B;
+
+  inout VDDIO;	
+  inout VDDIO_Q;	
+  inout VDDA;
+  inout VCCD;
+  inout VSWITCH;
+  inout VCCHIB;
+  inout VSSA;
+  inout VSSD;
+  inout VSSIO_Q;
+  inout VSSIO;
+
+endmodule
+
+module sky130_ef_io__com_bus_slice_20um (AMUXBUS_A, AMUXBUS_B,
+	VSSA, VDDA, VSWITCH, VDDIO_Q, VCCHIB, VDDIO, VCCD,
+	VSSIO, VSSD, VSSIO_Q
+);
+  inout AMUXBUS_A;
+  inout AMUXBUS_B;
+
+  inout VDDIO;	
+  inout VDDIO_Q;	
+  inout VDDA;
+  inout VCCD;
+  inout VSWITCH;
+  inout VCCHIB;
+  inout VSSA;
+  inout VSSD;
+  inout VSSIO_Q;
+  inout VSSIO;
+
+endmodule
+
 module sky130_ef_io__gpiov2_pad (IN_H, PAD_A_NOESD_H, PAD_A_ESD_0_H, PAD_A_ESD_1_H,
     PAD, DM, HLD_H_N, IN, INP_DIS, IB_MODE_SEL, ENABLE_H, ENABLE_VDDA_H,
     ENABLE_INP_H, OE_N, TIE_HI_ESD, TIE_LO_ESD, SLOW, VTRIP_SEL, HLD_OVR,
     ANALOG_EN, ANALOG_SEL, ENABLE_VDDIO, ENABLE_VSWITCH_H, ANALOG_POL, OUT,
-    AMUXBUS_A, AMUXBUS_B,VSSA, VDDA, VSWITCH, VDDIO_Q, VCCHIB, VDDIO, VCCD,
+    AMUXBUS_A, AMUXBUS_B, VSSA, VDDA, VSWITCH, VDDIO_Q, VCCHIB, VDDIO, VCCD,
     VSSIO, VSSD, VSSIO_Q 
     );
 
@@ -638,7 +698,7 @@
 input ENABLE_H;
 input ENABLE_INP_H;	
 input ENABLE_VDDA_H;	
-input ENABLE_VSWITCH_H;
+input ENABLE_VSWITCH_H;	
 input ENABLE_VDDIO;	
 input INP_DIS;		
 input IB_MODE_SEL;
@@ -698,7 +758,7 @@
     .ANALOG_POL(ANALOG_POL),
     .OUT(OUT),
     .AMUXBUS_A(AMUXBUS_A),
-    .AMUXBUS_B(AMUXBUS_B) ,
+    .AMUXBUS_B(AMUXBUS_B),
     .VSSA(VSSA),
     .VDDA(VDDA),
     .VSWITCH(VSWITCH),