uartm auto detect, upgraded PWM + Timing clean-up

diff --git a/openlane/digital_pll/base.sdc b/openlane/digital_pll/base.sdc
new file mode 100644
index 0000000..062e55d
--- /dev/null
+++ b/openlane/digital_pll/base.sdc

@@ -0,0 +1,36 @@
+
+
+current_design digital_pll
+
+create_clock [get_pins {"ringosc.ibufp01/Y"} ] -name "pll_control_clock"  -period 6.6666666666667 
+
+set_propagated_clock [get_clocks {pll_control_clock}] 
+
+set input_delay_value [expr $::env(CLOCK_PERIOD) * $::env(IO_PCT)]
+set output_delay_value [expr $::env(CLOCK_PERIOD) * $::env(IO_PCT)]
+puts "\[INFO\]: Setting output delay to: $output_delay_value"
+puts "\[INFO\]: Setting input delay to: $input_delay_value"
+
+set_input_delay $input_delay_value  -clock [get_clocks $::env(CLOCK_PORT)] [all_inputs]
+set_output_delay $output_delay_value  -clock [get_clocks $::env(CLOCK_PORT)] [all_outputs]
+
+# TODO set this as parameter
+set_driving_cell -lib_cell $::env(SYNTH_DRIVING_CELL) -pin $::env(SYNTH_DRIVING_CELL_PIN) [all_inputs]
+set cap_load [expr $::env(SYNTH_CAP_LOAD) / 1000.0]
+puts "\[INFO\]: Setting load to: $cap_load"
+set_load  $cap_load [all_outputs]
+
+puts "\[INFO\]: Setting timing derate to: [expr {$::env(SYNTH_TIMING_DERATE) * 10}] %"
+set_timing_derate -early [expr {1-$::env(SYNTH_TIMING_DERATE)}]
+set_timing_derate -late [expr {1+$::env(SYNTH_TIMING_DERATE)}]
+
+puts "\[INFO\]: Setting clock uncertainity to: $::env(SYNTH_CLOCK_UNCERTAINITY)"
+set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks {pll_control_clock}]
+
+puts "\[INFO\]: Setting clock transition to: $::env(SYNTH_CLOCK_TRANSITION)"
+set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks {pll_control_clock}]
+
+
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]

diff --git a/openlane/digital_pll/config.tcl b/openlane/digital_pll/config.tcl
new file mode 100644
index 0000000..1cf0b69
--- /dev/null
+++ b/openlane/digital_pll/config.tcl

@@ -0,0 +1,86 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
+set script_dir [file dirname [file normalize [info script]]]
+
+set ::env(DESIGN_NAME) digital_pll
+set ::env(DESIGN_IS_CORE) 0
+
+set ::env(VERILOG_FILES) "$::env(DESIGN_DIR)/../../verilog/rtl/digital_pll/src/digital_pll.v \
+                          $::env(DESIGN_DIR)/../../verilog/rtl/digital_pll/src/digital_pll_controller.v \
+                          $::env(DESIGN_DIR)/../../verilog/rtl/digital_pll/src/ring_osc2x13.v"
+
+set ::env(CLOCK_PORT) ""
+set ::env(CLOCK_TREE_SYNTH) 0
+
+# Synthesis
+set ::env(SYNTH_READ_BLACKBOX_LIB) 1
+set ::env(SYNTH_MAX_FANOUT) 6
+set ::env(SYNTH_BUFFERING) 0
+set ::env(SYNTH_SIZING) 0
+
+# Timing configuration
+set ::env(BASE_SDC_FILE) $::env(DESIGN_DIR)/base.sdc 
+
+## Floorplan
+set ::env(FP_PIN_ORDER_CFG) $::env(DESIGN_DIR)/pin_order.cfg
+
+set ::env(MACRO_PLACEMENT_CFG) $::env(DESIGN_DIR)/macro.cfg
+
+set ::env(FP_SIZING) absolute
+set ::env(DIE_AREA) "0 0 100 90"
+
+#set ::env(TOP_MARGIN_MULT) 2
+#set ::env(BOTTOM_MARGIN_MULT) 2
+
+#LVS Issue - DEF Base looks to having issue
+#set ::env(MAGIC_EXT_USE_GDS) {1}
+
+set ::env(CELL_PAD)  0
+
+## PDN 
+set ::env(FP_PDN_VPITCH) 40
+set ::env(FP_PDN_HPITCH) 40
+
+## Placement
+set ::env(PL_TARGET_DENSITY) 0.82
+
+## Routing 
+#set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) 0
+#set ::env(GLB_RT_ADJUSTMENT) 0
+
+set ::env(GLB_RT_MINLAYER) 2
+set ::env(GLB_RT_MAXLAYER) 6
+
+set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) 0
+set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 1
+set ::env(PL_RESIZER_BUFFER_INPUT_PORTS) 0
+set ::env(PL_RESIZER_BUFFER_OUTPUT_PORTS) 0
+set ::env(DIODE_INSERTION_STRATEGY) 0
+#set ::env(FILL_INSERTION) 0
+#set ::env(TAP_DECAP_INSERTION) 0
+set ::env(CLOCK_TREE_SYNTH) 0
+
+## Diode Insertion
+#set ::env(DIODE_INSERTION_STRATEGY) "4"
+
+set ::env(FP_PDN_VOFFSET) "5"
+set ::env(FP_PDN_VPITCH) "40"
+set ::env(FP_PDN_HOFFSET) "5"
+set ::env(FP_PDN_HPITCH) "40"
+set ::env(FP_PDN_HWIDTH) {6.2}
+set ::env(FP_PDN_VWIDTH) {6.2}
+set ::env(FP_PDN_HSPACING) {15}
+set ::env(FP_PDN_VSPACING) {15}

diff --git a/openlane/digital_pll/interactive.tcl b/openlane/digital_pll/interactive.tcl
new file mode 100755
index 0000000..cfc6830
--- /dev/null
+++ b/openlane/digital_pll/interactive.tcl

@@ -0,0 +1,468 @@
+#!/usr/bin/env tclsh
+# Copyright 2020-2022 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+package require openlane; # provides the utils as well
+
+proc run_placement_step {args} {
+    if { ! [ info exists ::env(PLACEMENT_CURRENT_DEF) ] } {
+        set ::env(PLACEMENT_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(PLACEMENT_CURRENT_DEF)
+    }
+
+    run_placement
+}
+
+proc run_placement {args} {
+    # |----------------------------------------------------|
+    # |----------------   3. PLACEMENT   ------------------|
+    # |----------------------------------------------------|
+    set ::env(CURRENT_STAGE) placement
+
+    if { [info exists ::env(PL_TARGET_DENSITY_CELLS)] } {
+        set old_pl_target_density $::env(PL_TARGET_DENSITY)
+        set ::env(PL_TARGET_DENSITY) $::env(PL_TARGET_DENSITY_CELLS)
+    }
+
+    if { $::env(PL_RANDOM_GLB_PLACEMENT) } {
+        # useful for very tiny designs
+        random_global_placement
+    } else {
+        global_placement_or
+    }
+
+    if { [info exists ::env(PL_TARGET_DENSITY_CELLS)] } {
+        set ::env(PL_TARGET_DENSITY) $old_pl_target_density
+    }
+
+    run_resizer_design
+    remove_buffers_from_nets
+
+    detailed_placement_or -def $::env(placement_results)/$::env(DESIGN_NAME).def -log $::env(placement_logs)/detailed.log
+
+    scrot_klayout -layout $::env(CURRENT_DEF) -log $::env(placement_logs)/screenshot.log
+}
+
+
+proc global_placement_or {args} {
+    increment_index
+    TIMER::timer_start
+    set log [index_file $::env(placement_logs)/global.log]
+    puts_info "Running Global Placement (log: [relpath . $log])..."
+
+    set ::env(SAVE_DEF) [index_file $::env(placement_tmpfiles)/global.def]
+
+    # random initial placement
+    if { $::env(PL_RANDOM_INITIAL_PLACEMENT) } {
+        random_global_placement
+        set ::env(PL_SKIP_INITIAL_PLACEMENT) 1
+    }
+
+    run_openroad_script $::env(SCRIPTS_DIR)/openroad/gpl.tcl -indexed_log $log
+
+    # sometimes replace fails with a ZERO exit code; the following is a workaround
+    # until the cause is found and fixed
+    if { ! [file exists $::env(SAVE_DEF)] } {
+        puts_err "Global placement has failed to produce a DEF file."
+        flow_fail
+    }
+
+    check_replace_divergence
+
+    TIMER::timer_stop
+    exec echo "[TIMER::get_runtime]" | python3 $::env(SCRIPTS_DIR)/write_runtime.py "global placement - openroad"
+    set_def $::env(SAVE_DEF)
+}
+
+
+
+proc run_cts_step {args} {
+    if { ! [ info exists ::env(CTS_CURRENT_DEF) ] } {
+        set ::env(CTS_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(CTS_CURRENT_DEF)
+    }
+
+    run_cts
+    run_resizer_timing
+}
+
+proc run_routing_step {args} {
+    if { ! [ info exists ::env(ROUTING_CURRENT_DEF) ] } {
+        set ::env(ROUTING_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(ROUTING_CURRENT_DEF)
+    }
+    if { $::env(ECO_ENABLE) == 0 } {
+        run_routing
+    }
+}
+
+proc run_parasitics_sta_step {args} {
+    if { ! [ info exists ::env(PARSITICS_CURRENT_DEF) ] } {
+        set ::env(PARSITICS_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(PARSITICS_CURRENT_DEF)
+    }
+
+    if { $::env(RUN_SPEF_EXTRACTION) && ($::env(ECO_ENABLE) == 0)} {
+        run_parasitics_sta
+    }
+}
+
+proc run_diode_insertion_2_5_step {args} {
+    if { ! [ info exists ::env(DIODE_INSERTION_CURRENT_DEF) ] } {
+        set ::env(DIODE_INSERTION_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(DIODE_INSERTION_CURRENT_DEF)
+    }
+    if { ($::env(DIODE_INSERTION_STRATEGY) == 2) || ($::env(DIODE_INSERTION_STRATEGY) == 5) } {
+        run_antenna_check
+        heal_antenna_violators; # modifies the routed DEF
+    }
+
+}
+
+proc run_irdrop_report_step {args} {
+    if { $::env(RUN_IRDROP_REPORT) } {
+        run_irdrop_report
+    }
+}
+
+proc run_lvs_step {{ lvs_enabled 1 }} {
+    if { ! [ info exists ::env(LVS_CURRENT_DEF) ] } {
+        set ::env(LVS_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(LVS_CURRENT_DEF)
+    }
+
+    if { $lvs_enabled && $::env(RUN_LVS) } {
+        run_magic_spice_export;
+        run_lvs; # requires run_magic_spice_export
+    }
+
+}
+
+proc run_drc_step {{ drc_enabled 1 }} {
+    if { ! [ info exists ::env(DRC_CURRENT_DEF) ] } {
+        set ::env(DRC_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(DRC_CURRENT_DEF)
+    }
+    if { $drc_enabled } {
+        if { $::env(RUN_MAGIC_DRC) } {
+            run_magic_drc
+        }
+        if {$::env(RUN_KLAYOUT_DRC)} {
+            run_klayout_drc
+        }
+    }
+}
+
+proc run_antenna_check_step {{ antenna_check_enabled 1 }} {
+    if { ! [ info exists ::env(ANTENNA_CHECK_CURRENT_DEF) ] } {
+        set ::env(ANTENNA_CHECK_CURRENT_DEF) $::env(CURRENT_DEF)
+    } else {
+        set ::env(CURRENT_DEF) $::env(ANTENNA_CHECK_CURRENT_DEF)
+    }
+    if { $antenna_check_enabled } {
+        run_antenna_check
+    }
+}
+
+proc run_eco_step {args} {
+    if { $::env(ECO_ENABLE) == 1 } {
+        run_eco_flow
+    }
+}
+
+proc run_magic_step {args} {
+    if {$::env(RUN_MAGIC)} {
+        run_magic
+    }
+}
+
+proc run_klayout_step {args} {
+    if {$::env(RUN_KLAYOUT)} {
+        run_klayout
+    }
+    if {$::env(RUN_KLAYOUT_XOR)} {
+        run_klayout_gds_xor
+    }
+}
+
+proc run_post_run_hooks {} {
+    if { [file exists $::env(DESIGN_DIR)/hooks/post_run.py]} {
+        puts_info "Running post run hook"
+        set result [exec $::env(OPENROAD_BIN) -python $::env(DESIGN_DIR)/hooks/post_run.py]
+        puts_info "$result"
+    } else {
+        puts_info "hooks/post_run.py not found, skipping"
+    }
+}
+
+proc run_magic_drc_batch {args} {
+    set options {
+        {-magicrc optional}
+        {-tech optional}
+        {-report required}
+        {-design required}
+        {-gds required}
+    }
+    set flags {}
+    parse_key_args "run_magic_drc_batch" args arg_values $options flags_mag $flags
+    if { [info exists arg_values(-magicrc)] } {
+        set magicrc [file normalize $arg_values(-magicrc)]
+    }
+    if { [info exists arg_values(-tech)] } {
+        set ::env(TECH) [file normalize $arg_values(-tech)]
+    }
+    set ::env(GDS_INPUT) [file normalize $arg_values(-gds)]
+    set ::env(REPORT_OUTPUT) [file normalize $arg_values(-report)]
+    set ::env(DESIGN_NAME) $arg_values(-design)
+
+    if { [info exists magicrc] } {
+        exec magic \
+            -noconsole \
+            -dnull \
+            -rcfile $magicrc \
+            $::env(OPENLANE_ROOT)/scripts/magic/drc_batch.tcl \
+            </dev/null |& tee /dev/tty
+    } else {
+        exec magic \
+            -noconsole \
+            -dnull \
+            $::env(OPENLANE_ROOT)/scripts/magic/drc_batch.tcl \
+            </dev/null |& tee /dev/tty
+    }
+}
+
+proc run_lvs_batch {args} {
+    # runs device level lvs on -gds/CURRENT_GDS and -net/CURRENT_NETLIST
+    # extracts gds only if EXT_NETLIST does not exist
+    set options {
+        {-design required}
+        {-gds optional}
+        {-net optional}
+    }
+    set flags {}
+    parse_key_args "run_lvs_batch" args arg_values $options flags_lvs $flags -no_consume
+
+    prep {*}$args
+
+    if { [info exists arg_values(-gds)] } {
+        set ::env(CURRENT_GDS) [file normalize $arg_values(-gds)]
+    } else {
+        set ::env(CURRENT_GDS) $::env(signoff_results)/$::env(DESIGN_NAME).gds
+    }
+    if { [info exists arg_values(-net)] } {
+        set ::env(CURRENT_NETLIST) [file normalize $arg_values(-net)]
+    }
+
+    assert_files_exist "$::env(CURRENT_GDS) $::env(CURRENT_NETLIST)"
+
+    set ::env(MAGIC_EXT_USE_GDS) 1
+    set ::env(EXT_NETLIST) $::env(signoff_results)/$::env(DESIGN_NAME).gds.spice
+    if { [file exists $::env(EXT_NETLIST)] } {
+        puts_warn "The file $::env(EXT_NETLIST) will be used. If you would like the file re-exported, please delete it."
+    } else {
+        run_magic_spice_export
+    }
+
+    run_lvs
+}
+
+
+proc run_file {args} {
+    set ::env(TCLLIBPATH) $::auto_path
+    exec tclsh {*}$args >&@stdout
+}
+
+proc run_floorplan {args} {
+    # |----------------------------------------------------|
+    # |----------------   2. FLOORPLAN   ------------------|
+    # |----------------------------------------------------|
+    #
+    # intial fp
+    init_floorplan
+
+    # check for deprecated io variables
+    if { [info exists ::env(FP_IO_HMETAL)]} {
+        set ::env(FP_IO_HLAYER) [lindex $::env(TECH_METAL_LAYERS) [expr {$::env(FP_IO_HMETAL) - 1}]]
+        puts_warn "You're using FP_IO_HMETAL in your configuration, which is a deprecated variable that will be removed in the future."
+        puts_warn "We recommend you update your configuration as follows:"
+        puts_warn "\tset ::env(FP_IO_HLAYER) {$::env(FP_IO_HLAYER)}"
+    }
+
+    if { [info exists ::env(FP_IO_VMETAL)]} {
+        set ::env(FP_IO_VLAYER) [lindex $::env(TECH_METAL_LAYERS) [expr {$::env(FP_IO_VMETAL) - 1}]]
+        puts_warn "You're using FP_IO_VMETAL in your configuration, which is a deprecated variable that will be removed in the future."
+        puts_warn "We recommend you update your configuration as follows:"
+        puts_warn "\tset ::env(FP_IO_VLAYER) {$::env(FP_IO_VLAYER)}"
+    }
+
+
+    # place io
+    if { [info exists ::env(FP_PIN_ORDER_CFG)] } {
+        place_io_ol
+    } else {
+        if { [info exists ::env(FP_CONTEXT_DEF)] && [info exists ::env(FP_CONTEXT_LEF)] } {
+            place_io
+            global_placement_or
+            place_contextualized_io \
+                -lef $::env(FP_CONTEXT_LEF) \
+                -def $::env(FP_CONTEXT_DEF)
+        } else {
+            place_io
+        }
+    }
+
+    apply_def_template
+
+    #if { [info exist ::env(EXTRA_LEFS)] } {
+        if { [info exist ::env(MACRO_PLACEMENT_CFG)] } {
+            file copy -force $::env(MACRO_PLACEMENT_CFG) $::env(placement_tmpfiles)/macro_placement.cfg
+            manual_macro_placement -f
+        } else {
+        #    global_placement_or
+        #    basic_macro_placement
+        }
+    #}
+
+    tap_decap_or
+
+    scrot_klayout -layout $::env(CURRENT_DEF) -log $::env(floorplan_logs)/screenshot.log
+
+    run_power_grid_generation
+}
+
+
+
+
+proc run_flow {args} {
+    set options {
+        {-design optional}
+        {-from optional}
+        {-to optional}
+        {-save_path optional}
+        {-override_env optional}
+    }
+    set flags {-save -run_hooks -no_lvs -no_drc -no_antennacheck -gui}
+    parse_key_args "run_non_interactive_mode" args arg_values $options flags_map $flags -no_consume
+
+    prep {*}$args
+    # signal trap SIGINT save_state;
+
+    if { [info exists flags_map(-gui)] } {
+        or_gui
+        return
+    }
+    if { [info exists arg_values(-override_env)] } {
+        load_overrides $arg_values(-override_env)
+    }
+
+    set LVS_ENABLED 1
+    set DRC_ENABLED 0
+
+    set ANTENNACHECK_ENABLED [expr ![info exists flags_map(-no_antennacheck)] ]
+
+    set steps [dict create \
+        "synthesis" "run_synthesis" \
+        "floorplan" "run_floorplan" \
+        "placement" "run_placement_step" \
+        "cts" "run_cts_step" \
+        "routing" "run_routing_step" \
+        "parasitics_sta" "run_parasitics_sta_step" \
+        "eco" "run_eco_step" \
+        "diode_insertion" "run_diode_insertion_2_5_step" \
+        "irdrop" "run_irdrop_report_step" \
+        "gds_magic" "run_magic_step" \
+        "gds_klayout" "run_klayout_step" \
+        "lvs" "run_lvs_step $LVS_ENABLED " \
+        "drc" "run_drc_step $DRC_ENABLED " \
+        "antenna_check" "run_antenna_check_step $ANTENNACHECK_ENABLED " \
+        "cvc" "run_lef_cvc"
+    ]
+
+    if { [info exists arg_values(-from) ]} {
+        puts_info "Starting flow at $arg_values(-from)..."
+        set ::env(CURRENT_STEP) $arg_values(-from)
+    } elseif {  [info exists ::env(CURRENT_STEP) ] } {
+        puts_info "Resuming flow from $::env(CURRENT_STEP)..."
+    } else {
+        set ::env(CURRENT_STEP) "synthesis"
+    }
+
+    set_if_unset arg_values(-from) $::env(CURRENT_STEP)
+    set_if_unset arg_values(-to) "cvc"
+
+    set exe 0;
+    dict for {step_name step_exe} $steps {
+        if { [ string equal $arg_values(-from) $step_name ] } {
+            set exe 1;
+        }
+
+        if { $exe } {
+            # For when it fails
+            set ::env(CURRENT_STEP) $step_name
+            [lindex $step_exe 0] [lindex $step_exe 1] ;
+        }
+
+        if { [ string equal $arg_values(-to) $step_name ] } {
+            set exe 0:
+            break;
+        }
+
+    }
+
+    # for when it resumes
+    set steps_as_list [dict keys $steps]
+    set next_idx [expr [lsearch $steps_as_list $::env(CURRENT_STEP)] + 1]
+    set ::env(CURRENT_STEP) [lindex $steps_as_list $next_idx]
+
+    # Saves to <RUN_DIR>/results/final
+    save_final_views
+
+    # Saves to design directory or custom
+    if {  [info exists flags_map(-save) ] } {
+        if { ! [info exists arg_values(-save_path)] } {
+            set arg_values(-save_path) $::env(DESIGN_DIR)
+        }
+        save_final_views\
+            -save_path $arg_values(-save_path)\
+            -tag $::env(RUN_TAG)
+    }
+    calc_total_runtime
+    save_state
+    generate_final_summary_report
+
+    check_timing_violations
+
+    if { [info exists arg_values(-save_path)]\
+        && $arg_values(-save_path) != "" } {
+        set ::env(HOOK_OUTPUT_PATH) "[file normalize $arg_values(-save_path)]"
+    } else {
+        set ::env(HOOK_OUTPUT_PATH) $::env(RESULTS_DIR)/final
+    }
+
+    if {[info exists flags_map(-run_hooks)]} {
+        run_post_run_hooks
+    }
+
+    puts_success "Flow complete."
+
+    show_warnings "Note that the following warnings have been generated:"
+}
+
+run_flow {*}$argv

diff --git a/openlane/digital_pll/macro.cfg b/openlane/digital_pll/macro.cfg
new file mode 100644
index 0000000..927d153
--- /dev/null
+++ b/openlane/digital_pll/macro.cfg

@@ -0,0 +1,110 @@
+
+ringosc.iss.reseten0	7.82	10.88	FN
+ringosc.iss.ctrlen0	    14.72	10.88	FN
+ringosc.iss.const1	    19.78	10.88	FN
+
+ringosc.iss.delaybuf0	7.82	13.60	S
+ringosc.iss.delayen1	11.5	13.60	S
+ringosc.iss.delayint0	19.78	13.60	FS
+ringosc.iss.delayenb1	7.82	16.32	FN
+ringosc.iss.delayen0	13.34	16.32	FN
+ringosc.iss.delayenb0	19.78	16.32	FN
+			
+ringosc.dstage\[0\].id.delaybuf0	7.82	19.04	FS
+ringosc.dstage\[0\].id.delaybuf1	11.5	19.04	S
+ringosc.dstage\[0\].id.delayen1		14.72	19.04	S
+ringosc.dstage\[0\].id.delayint0	20.24	19.04	FS
+ringosc.dstage\[0\].id.delayenb1	7.82	21.76	FN
+ringosc.dstage\[0\].id.delayen0		13.34	21.76	FN
+ringosc.dstage\[0\].id.delayenb0	19.78	21.76	FN
+			
+ringosc.dstage\[1\].id.delaybuf0	7.82	24.48	FS
+ringosc.dstage\[1\].id.delaybuf1	11.5	24.48	S
+ringosc.dstage\[1\].id.delayen1		14.72	24.48	S
+ringosc.dstage\[1\].id.delayint0	20.24	24.48	FS
+ringosc.dstage\[1\].id.delayenb1	7.82	27.2	FN
+ringosc.dstage\[1\].id.delayen0		13.34	27.2	FN
+ringosc.dstage\[1\].id.delayenb0	19.78	27.2	FN
+			
+ringosc.dstage\[2\].id.delaybuf0	7.82	29.92	FS
+ringosc.dstage\[2\].id.delaybuf1	11.5	29.92	S
+ringosc.dstage\[2\].id.delayen1		14.72	29.92	S
+ringosc.dstage\[2\].id.delayint0	20.24	29.92	FS
+ringosc.dstage\[2\].id.delayenb1	7.82	32.64	FN
+ringosc.dstage\[2\].id.delayen0		13.34	32.64	FN
+ringosc.dstage\[2\].id.delayenb0	19.78	32.64	FN
+			
+ringosc.dstage\[3\].id.delaybuf0	7.82	35.36	FS
+ringosc.dstage\[3\].id.delaybuf1	11.5	35.36	S
+ringosc.dstage\[3\].id.delayen1		14.72	35.36	S
+ringosc.dstage\[3\].id.delayint0	20.24	35.36	FS
+ringosc.dstage\[3\].id.delayenb1	7.82	38.08	FN
+ringosc.dstage\[3\].id.delayen0		13.34	38.08	FN
+ringosc.dstage\[3\].id.delayenb0	19.78	38.08	FN
+			
+ringosc.dstage\[4\].id.delaybuf0	7.82	40.8	FS
+ringosc.dstage\[4\].id.delaybuf1	11.5	40.8	S
+ringosc.dstage\[4\].id.delayen1		14.72	40.8	S
+ringosc.dstage\[4\].id.delayint0	20.24	40.8	FS
+ringosc.dstage\[4\].id.delayenb1	7.82	43.52	FN
+ringosc.dstage\[4\].id.delayen0		13.34	43.52	FN
+ringosc.dstage\[4\].id.delayenb0	19.78	43.52	FN
+			
+ringosc.dstage\[5\].id.delaybuf0	7.82	46.24	FS
+ringosc.dstage\[5\].id.delaybuf1	11.5	46.24	S
+ringosc.dstage\[5\].id.delayen1		14.72	46.24	S
+ringosc.dstage\[5\].id.delayint0	20.24	46.24	FS
+ringosc.dstage\[5\].id.delayenb1	7.82	48.96	FN
+ringosc.dstage\[5\].id.delayen0		13.34	48.96	FN
+ringosc.dstage\[5\].id.delayenb0	19.78	48.96	FN
+			
+ringosc.dstage\[6\].id.delaybuf0	31.74	48.96	FN
+ringosc.dstage\[6\].id.delaybuf1	35.42	48.96	N
+ringosc.dstage\[6\].id.delayen1		38.64	48.96	N
+ringosc.dstage\[6\].id.delayint0	45.54	48.96	FN
+ringosc.dstage\[6\].id.delayenb1	32.66	46.24	FS
+ringosc.dstage\[6\].id.delayen0		38.18	46.24	FS
+ringosc.dstage\[6\].id.delayenb0	44.62	46.24	FS
+			
+ringosc.dstage\[7\].id.delaybuf0	31.74	43.52	FN
+ringosc.dstage\[7\].id.delaybuf1	35.42	43.52	N
+ringosc.dstage\[7\].id.delayen1		38.64	43.52	N
+ringosc.dstage\[7\].id.delayint0	45.54	43.52	FN
+ringosc.dstage\[7\].id.delayenb1	32.66	40.8	FS
+ringosc.dstage\[7\].id.delayen0		38.18	40.8	FS
+ringosc.dstage\[7\].id.delayenb0	44.62	40.8	FS
+			
+ringosc.dstage\[8\].id.delaybuf0	31.74	38.08	FN
+ringosc.dstage\[8\].id.delaybuf1	35.42	38.08	N
+ringosc.dstage\[8\].id.delayen1		38.64	38.08	N
+ringosc.dstage\[8\].id.delayint0	45.54	38.08	FN
+ringosc.dstage\[8\].id.delayenb1	32.66	35.36	FS
+ringosc.dstage\[8\].id.delayen0		38.18	35.36	FS
+ringosc.dstage\[8\].id.delayenb0	44.62	35.36	FS
+			
+ringosc.dstage\[9\].id.delaybuf0	31.74	32.64	FN
+ringosc.dstage\[9\].id.delaybuf1	35.42	32.64	N
+ringosc.dstage\[9\].id.delayen1		38.64	32.64	N
+ringosc.dstage\[9\].id.delayint0	45.54	32.64	FN
+ringosc.dstage\[9\].id.delayenb1	32.66	29.92	FS
+ringosc.dstage\[9\].id.delayen0		38.18	29.92	FS
+ringosc.dstage\[9\].id.delayenb0	44.62	29.92	FS
+			
+ringosc.dstage\[10\].id.delaybuf0	31.74	27.2	FN
+ringosc.dstage\[10\].id.delaybuf1	35.42	27.2	N
+ringosc.dstage\[10\].id.delayen1	38.64	27.2	N
+ringosc.dstage\[10\].id.delayint0	45.54	27.2	FN
+ringosc.dstage\[10\].id.delayenb1	32.66	24.48	FS
+ringosc.dstage\[10\].id.delayen0	38.18	24.48	FS
+ringosc.dstage\[10\].id.delayenb0	44.62	24.48	FS
+			
+ringosc.dstage\[11\].id.delaybuf0	31.74	21.76	FN
+ringosc.dstage\[11\].id.delaybuf1	35.42	21.76	N
+ringosc.dstage\[11\].id.delayen1	38.64	21.76	N
+ringosc.dstage\[11\].id.delayint0	45.54	21.76	FN
+ringosc.dstage\[11\].id.delayenb1	32.66	19.04	FS
+ringosc.dstage\[11\].id.delayen0	38.18	19.04	FS
+ringosc.dstage\[11\].id.delayenb0	44.62	19.04	FS
+
+			
+

diff --git a/openlane/digital_pll/pin_order.cfg b/openlane/digital_pll/pin_order.cfg
new file mode 100644
index 0000000..b4d381d
--- /dev/null
+++ b/openlane/digital_pll/pin_order.cfg

@@ -0,0 +1,45 @@
+#N
+ext_trim\[7\]
+ext_trim\[8\]
+ext_trim\[9\]
+ext_trim\[19\]
+ext_trim\[18\]
+ext_trim\[17\]
+ext_trim\[16\]
+ext_trim\[15\]
+ext_trim\[14\]
+ext_trim\[13\]
+ext_trim\[12\]
+ext_trim\[11\]
+ext_trim\[10\]
+
+#E
+ext_trim\[25\]
+ext_trim\[24\]
+ext_trim\[23\]
+ext_trim\[22\]
+ext_trim\[21\]
+ext_trim\[20\]
+
+#W
+clockp\[1\]
+clockp\[0\]
+div\[4\]
+div\[3\]
+div\[2\]
+div\[1\]
+div\[0\]
+enable
+dco
+ext_trim\[6\]
+ext_trim\[5\]
+ext_trim\[4\]
+ext_trim\[3\]
+ext_trim\[2\]
+ext_trim\[1\]
+ext_trim\[0\]
+
+#S
+resetb 
+osc  
+

diff --git a/openlane/pinmux_top/base.sdc b/openlane/pinmux_top/base.sdc
index 2aa686d..9c22d9c 100644
--- a/openlane/pinmux_top/base.sdc
+++ b/openlane/pinmux_top/base.sdc

@@ -61,6 +61,10 @@
 set cap_load [expr $::env(SYNTH_CAP_LOAD) / 1000.0]
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
+
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/openlane/pinmux_top/config.tcl b/openlane/pinmux_top/config.tcl
index aec92b4..9326c1a 100755
--- a/openlane/pinmux_top/config.tcl
+++ b/openlane/pinmux_top/config.tcl

@@ -45,19 +45,23 @@
      $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/pinmux_top.sv     \
      $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/pinmux.sv     \
      $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/glbl_reg.sv  \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/gpio_top.sv  \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/gpio_reg.sv  \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/gpio_intr.sv \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/pwm_top.sv   \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/pwm_reg.sv   \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/pwm.sv       \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/timer_top.sv \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/timer_reg.sv \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/timer.sv     \
+     $::env(DESIGN_DIR)/../../verilog/rtl/gpio/src/gpio_top.sv  \
+     $::env(DESIGN_DIR)/../../verilog/rtl/gpio/src/gpio_reg.sv  \
+     $::env(DESIGN_DIR)/../../verilog/rtl/gpio/src/gpio_intr.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/gpio/src/gpio_dglicth.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/pwm/src/pwm_top.sv   \
+     $::env(DESIGN_DIR)/../../verilog/rtl/pwm/src/pwm_core.sv   \
+     $::env(DESIGN_DIR)/../../verilog/rtl/pwm/src/pwm_glbl_reg.sv   \
+     $::env(DESIGN_DIR)/../../verilog/rtl/pwm/src/pwm_blk_reg.sv   \
+     $::env(DESIGN_DIR)/../../verilog/rtl/pwm/src/pwm_cfg_dglitch.sv   \
+     $::env(DESIGN_DIR)/../../verilog/rtl/pwm/src/pwm.sv       \
+     $::env(DESIGN_DIR)/../../verilog/rtl/timer/src/timer_top.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/timer/src/timer_reg.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/timer/src/timer.sv     \
      $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/semaphore_reg.sv  \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/ws281x_top.sv \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/ws281x_driver.sv \
-     $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/ws281x_reg.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/ws281x/src/ws281x_top.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/ws281x/src/ws281x_driver.sv \
+     $::env(DESIGN_DIR)/../../verilog/rtl/ws281x/src/ws281x_reg.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/strap_ctrl.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/pinmux/src/glbl_rst_reg.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/lib/pulse_gen_type1.sv   \
@@ -88,7 +92,7 @@
 set ::env(FP_PIN_ORDER_CFG) $::env(DESIGN_DIR)/pin_order.cfg
 
 set ::env(FP_SIZING) absolute
-set ::env(DIE_AREA) "0 0 500 750"
+set ::env(DIE_AREA) "0 0 500 850"
 
 
 # If you're going to use multiple power domains, then keep this disabled.
@@ -98,8 +102,8 @@
 
 
 set ::env(PL_TIME_DRIVEN) 1
-set ::env(PL_TARGET_DENSITY) "0.38"
-set ::env(CELL_PAD) "4"
+set ::env(PL_TARGET_DENSITY) "0.37"
+set ::env(CELL_PAD) "8"
 #set ::env(GRT_ADJUSTMENT) {0.2}
 
 
@@ -135,6 +139,14 @@
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
 
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
 
 set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
 set ::env(QUIT_ON_MAGIC_DRC) "1"

diff --git a/openlane/qspim_top/base.sdc b/openlane/qspim_top/base.sdc
index c0e8993..9322474 100644
--- a/openlane/qspim_top/base.sdc
+++ b/openlane/qspim_top/base.sdc

@@ -283,6 +283,10 @@
 set cap_load [expr $::env(SYNTH_CAP_LOAD) / 1000.0]
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
+
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/openlane/qspim_top/config.tcl b/openlane/qspim_top/config.tcl
index 4cdf315..c376278 100755
--- a/openlane/qspim_top/config.tcl
+++ b/openlane/qspim_top/config.tcl

@@ -102,6 +102,14 @@
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
 
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
 
 set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
 set ::env(QUIT_ON_MAGIC_DRC) "1"

diff --git a/openlane/uart_i2cm_usb_spi_top/base.sdc b/openlane/uart_i2cm_usb_spi_top/base.sdc
index 3218d29..ae14897 100644
--- a/openlane/uart_i2cm_usb_spi_top/base.sdc
+++ b/openlane/uart_i2cm_usb_spi_top/base.sdc

@@ -77,6 +77,12 @@
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
 
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
+
+###############################################################################
+
 set ::env(SYNTH_TIMING_DERATE) 0.05
 puts "\[INFO\]: Setting timing derate to: [expr {$::env(SYNTH_TIMING_DERATE) * 10}] %"
 set_timing_derate -early [expr {1-$::env(SYNTH_TIMING_DERATE)}]

diff --git a/openlane/uart_i2cm_usb_spi_top/config.tcl b/openlane/uart_i2cm_usb_spi_top/config.tcl
index 86a397e..9870805 100644
--- a/openlane/uart_i2cm_usb_spi_top/config.tcl
+++ b/openlane/uart_i2cm_usb_spi_top/config.tcl

@@ -128,6 +128,15 @@
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
 
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
+
 set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
 set ::env(QUIT_ON_MAGIC_DRC) "1"
 set ::env(QUIT_ON_LVS_ERROR) "1"

diff --git a/openlane/wb_host/base.sdc b/openlane/wb_host/base.sdc
index 3c8cdc9..599dff4 100644
--- a/openlane/wb_host/base.sdc
+++ b/openlane/wb_host/base.sdc

@@ -102,6 +102,11 @@
 set cap_load [expr $::env(SYNTH_CAP_LOAD) / 1000.0]
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
+
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
+
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/openlane/wb_host/config.tcl b/openlane/wb_host/config.tcl
index 08d18dd..f2b9028 100755
--- a/openlane/wb_host/config.tcl
+++ b/openlane/wb_host/config.tcl

@@ -27,6 +27,8 @@
 # Timing configuration
 set ::env(CLOCK_PERIOD) "10"
 set ::env(CLOCK_PORT) "wbm_clk_i wbs_clk_i u_uart2wb.u_core.u_uart_clk.genblk1.u_mux/X"
+set ::env(CLOCK_NET) "wbm_clk_i wbs_clk_i u_uart2wb.u_core.u_uart_clk.genblk1.u_mux/X"
+#set ::env(CLOCK_NET) "wbm_clk_i wbs_clk_i u_uart2wb.u_core.u_uart_clk.genblk1.u_mux/X u_uart2wb.u_arst_sync.u_buf.genblk1.u_mux/X"
 
 set ::env(SYNTH_MAX_FANOUT) 4
 
@@ -59,6 +61,7 @@
      $::env(DESIGN_DIR)/../../verilog/rtl/uart2wb/src/uart2wb.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/uart2wb/src/uart2_core.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/uart2wb/src/uart_msg_handler.v \
+     $::env(DESIGN_DIR)/../../verilog/rtl/uart2wb/src/uart_auto_det.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/sspis/src/sspis_top.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/sspis/src/sspis_if.sv \
      $::env(DESIGN_DIR)/../../verilog/rtl/sspis/src/spi2wb.sv \
@@ -86,7 +89,7 @@
 
 
 # If you're going to use multiple power domains, then keep this disabled.
-set ::env(RUN_CVC) 1
+set ::env(RUN_CVC) 0
 
 #set ::env(PDN_CFG) $script_dir/pdn.tcl
 
@@ -114,6 +117,18 @@
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
 
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
+
+
+
+
 set ::env(PL_RESIZER_BUFFER_INPUT_PORTS) "0"
 set ::env(PL_RESIZER_BUFFER_OUTPUT_PORTS) "1"
 set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) "1"

diff --git a/openlane/wb_interconnect/base.sdc b/openlane/wb_interconnect/base.sdc
index d4e6271..9c402a4 100644
--- a/openlane/wb_interconnect/base.sdc
+++ b/openlane/wb_interconnect/base.sdc

@@ -133,6 +133,11 @@
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
 
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
+
+###############################################################################
 set ::env(SYNTH_TIMING_DERATE) 0.05
 puts "\[INFO\]: Setting timing derate to: [expr {$::env(SYNTH_TIMING_DERATE) * 10}] %"
 set_timing_derate -early [expr {1-$::env(SYNTH_TIMING_DERATE)}]

diff --git a/openlane/wb_interconnect/config.tcl b/openlane/wb_interconnect/config.tcl
index 51f3ba1..58b9acb 100755
--- a/openlane/wb_interconnect/config.tcl
+++ b/openlane/wb_interconnect/config.tcl

@@ -27,6 +27,7 @@
 # Timing configuration
 set ::env(CLOCK_PERIOD) "10"
 set ::env(CLOCK_PORT) "clk_i"
+set ::env(CLOCK_NET) "clk_i"
 
 set ::env(SYNTH_MAX_FANOUT) 4
 
@@ -98,7 +99,7 @@
 
 ## Placement
 set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) 1
-set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 0
+set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 1
 
 set ::env(PL_RESIZER_MAX_SLEW_MARGIN) 2
 set ::env(PL_RESIZER_MAX_CAP_MARGIN) 2
@@ -107,6 +108,14 @@
 set ::env(GRT_ADJUSTMENT) 0.1
 set ::env(DPL_CELL_PADDING) 1
 
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
 
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
@@ -127,9 +136,6 @@
 set ::env(PL_RESIZER_MAX_SLEW_MARGIN) "2.0"
 set ::env(PL_RESIZER_MAX_CAP_MARGIN) "5"
 
-## FANOUT Reduced to take care of long routes
-set ::env(SYNTH_MAX_FANOUT) "2"
-
 set ::env(FP_PDN_VPITCH) 100
 set ::env(FP_PDN_HPITCH) 100
 set ::env(FP_PDN_VWIDTH) 6.2

diff --git a/openlane/ycr2_iconnect/base.sdc b/openlane/ycr2_iconnect/base.sdc
index 4889e25..2c9946e 100644
--- a/openlane/ycr2_iconnect/base.sdc
+++ b/openlane/ycr2_iconnect/base.sdc

@@ -92,6 +92,10 @@
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
 
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
+
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/openlane/ycr2_iconnect/config.tcl b/openlane/ycr2_iconnect/config.tcl
index 1542431..5b3dbc2 100644
--- a/openlane/ycr2_iconnect/config.tcl
+++ b/openlane/ycr2_iconnect/config.tcl

@@ -80,10 +80,15 @@
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
 
-set ::env(PL_RESIZER_BUFFER_INPUT_PORTS) "0"
-set ::env(PL_RESIZER_BUFFER_OUTPUT_PORTS) "1"
-set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) "1"
-set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) "1"
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
+
 set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
 set ::env(QUIT_ON_MAGIC_DRC) "1"
 set ::env(QUIT_ON_LVS_ERROR) "1"

diff --git a/openlane/ycr_core_top/base.sdc b/openlane/ycr_core_top/base.sdc
index f804cf0..874dabb 100644
--- a/openlane/ycr_core_top/base.sdc
+++ b/openlane/ycr_core_top/base.sdc

@@ -34,7 +34,7 @@
 #DMEM Constraints
 set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_cmd_o}]
 set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_req_o}]
-set_output_delay -max 2.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_addr_o[*]}]
+set_output_delay -max 7.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_addr_o[*]}]
 set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_wdata_o[*]}]
 set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_width_o[*]}]
 
@@ -60,6 +60,9 @@
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
 
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/openlane/ycr_core_top/config.tcl b/openlane/ycr_core_top/config.tcl
index 016305e..e4947ce 100644
--- a/openlane/ycr_core_top/config.tcl
+++ b/openlane/ycr_core_top/config.tcl

@@ -92,6 +92,14 @@
 #LVS Issue - DEF Base looks to having issue
 set ::env(MAGIC_EXT_USE_GDS) {1}
 
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
 
 set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
 set ::env(QUIT_ON_MAGIC_DRC) "1"
@@ -99,7 +107,7 @@
 set ::env(QUIT_ON_SLEW_VIOLATIONS) "0"
 
 #Need to cross-check why global timing opimization creating setup vio with hugh hold fix
-set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) "0"
+set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) "1"
 
 #PDN
 set ::env(FP_PDN_VPITCH) 100

diff --git a/openlane/ycr_intf/base.sdc b/openlane/ycr_intf/base.sdc
index db8fbe6..f8eb2c5 100644
--- a/openlane/ycr_intf/base.sdc
+++ b/openlane/ycr_intf/base.sdc

@@ -245,6 +245,9 @@
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
 
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/openlane/ycr_intf/config.tcl b/openlane/ycr_intf/config.tcl
index a66d6ae..89d85ff 100644
--- a/openlane/ycr_intf/config.tcl
+++ b/openlane/ycr_intf/config.tcl

@@ -80,6 +80,17 @@
 #set ::env(GLB_RT_MAX_DIODE_INS_ITERS) 10
 set ::env(DIODE_INSERTION_STRATEGY) 3
 
+#LVS Issue - DEF Base looks to having issue
+set ::env(MAGIC_EXT_USE_GDS) {1}
+
+set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) {1.5}
+set ::env(PL_RESIZER_MAX_SLEW_MARGIN) {1.5}
+
+set ::env(GLB_RESIZER_MAX_CAP_MARGIN) {0.25}
+set ::env(PL_RESIZER_MAX_CAP_MARGIN) {0.25}
+
+set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) {500}
+set ::env(PL_RESIZER_MAX_WIRE_LENGTH) {500}
 
 set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
 set ::env(QUIT_ON_MAGIC_DRC) "1"

diff --git a/signoff/digital_pll/OPENLANE_VERSION b/signoff/digital_pll/OPENLANE_VERSION
new file mode 100644
index 0000000..b5bf449
--- /dev/null
+++ b/signoff/digital_pll/OPENLANE_VERSION

@@ -0,0 +1 @@
+openlane b6bacc9d1ab469917fda7ceea61ea3a18984b818

diff --git a/signoff/digital_pll/PDK_SOURCES b/signoff/digital_pll/PDK_SOURCES
new file mode 100644
index 0000000..f9d0f46
--- /dev/null
+++ b/signoff/digital_pll/PDK_SOURCES

@@ -0,0 +1 @@
+open_pdks 44a43c23c81b45b8e774ae7a84899a5a778b6b0b

diff --git a/sta/scripts/ycr_core_timing.tcl b/sta/scripts/ycr_core_timing.tcl
index 62484ae..9557046 100644
--- a/sta/scripts/ycr_core_timing.tcl
+++ b/sta/scripts/ycr_core_timing.tcl

@@ -1,26 +1,26 @@
 
         set ::env(USER_ROOT)    ".."
-        set ::env(CARAVEL_ROOT) "/home/dinesha/workarea/efabless/MPW-5/caravel"
-        set ::env(CARAVEL_PDK_ROOT)     "/opt/pdk_mpw5"
+        set ::env(CARAVEL_ROOT) "/home/dinesha/workarea/efabless/MPW-7/caravel"
+        set ::env(CARAVEL_PDK_ROOT)     "/opt/pdk_mpw7/sky130B"
 
-        read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_sc_hd/lib/sky130_fd_sc_hd__tt_025C_1v80.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_sram_macros/lib/sky130_sram_2kbyte_1rw1r_32x512_8_TT_1p8V_25C.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_sram_macros/lib/sky130_sram_1kbyte_1rw1r_32x256_8_TT_1p8V_25C.lib
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_sc_hvl/lib/sky130_fd_sc_hvl__tt_025C_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_sc_hvl/lib/sky130_fd_sc_hvl__tt_025C_3v30_lv1v80.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_gpiov2_tt_tt_025C_1v80_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_ground_hvc_wpad_tt_025C_1v80_3v30_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_ground_lvc_wpad_tt_025C_1v80_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_ground_lvc_wpad_tt_100C_1v80_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_power_lvc_wpad_tt_025C_1v80_3v30_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_xres4v2_tt_tt_025C_1v80_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__gpiov2_pad_tt_tt_025C_1v80_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__vccd_lvc_clamped_pad_tt_025C_1v80_3v30_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__vdda_hvc_clamped_pad_tt_025C_1v80_3v30_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__vssa_hvc_clamped_pad_tt_025C_1v80_3v30_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__vssd_lvc_clamped3_pad_tt_025C_1v80_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__vccd_lvc_clamped3_pad_tt_025C_1v80_3v30_3v30.lib	
-	read_liberty $::env(CARAVEL_PDK_ROOT)/sky130A/libs.ref/sky130_fd_io/lib/sky130_ef_io__vssd_lvc_clamped_pad_tt_025C_1v80_3v30.lib	
+    read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_sc_hd/lib/sky130_fd_sc_hd__tt_025C_1v80.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_sram_macros/lib/sky130_sram_2kbyte_1rw1r_32x512_8_TT_1p8V_25C.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_sram_macros/lib/sky130_sram_1kbyte_1rw1r_32x256_8_TT_1p8V_25C.lib
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_sc_hvl/lib/sky130_fd_sc_hvl__tt_025C_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_sc_hvl/lib/sky130_fd_sc_hvl__tt_025C_3v30_lv1v80.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_gpiov2_tt_tt_025C_1v80_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_ground_hvc_wpad_tt_025C_1v80_3v30_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_ground_lvc_wpad_tt_025C_1v80_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_ground_lvc_wpad_tt_100C_1v80_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_power_lvc_wpad_tt_025C_1v80_3v30_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_fd_io__top_xres4v2_tt_tt_025C_1v80_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__gpiov2_pad_tt_tt_025C_1v80_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__vccd_lvc_clamped_pad_tt_025C_1v80_3v30_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__vdda_hvc_clamped_pad_tt_025C_1v80_3v30_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__vssa_hvc_clamped_pad_tt_025C_1v80_3v30_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__vssd_lvc_clamped3_pad_tt_025C_1v80_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__vccd_lvc_clamped3_pad_tt_025C_1v80_3v30_3v30.lib	
+	read_liberty $::env(CARAVEL_PDK_ROOT)/libs.ref/sky130_fd_io/lib/sky130_ef_io__vssd_lvc_clamped_pad_tt_025C_1v80_3v30.lib	
 
 	# User project netlist
         read_verilog $::env(USER_ROOT)/verilog/gl/ycr_core_top.v

diff --git a/sta/sdc/caravel.sdc b/sta/sdc/caravel.sdc
index ab8d910..327fed6 100644
--- a/sta/sdc/caravel.sdc
+++ b/sta/sdc/caravel.sdc

@@ -1,5 +1,4 @@
 set ::env(IO_PCT) "0.2"
-set ::env(SYNTH_MAX_FANOUT) "5"
 set ::env(SYNTH_CAP_LOAD) "1"
 set ::env(SYNTH_TIMING_DERATE) 0.01
 set ::env(SYNTH_CLOCK_SETUP_UNCERTAINITY) 0.25
@@ -12,9 +11,11 @@
 create_generated_clock -name csclk -add -source [get_ports {clock}] -master_clock [get_clocks master_clock] -divide_by 1 -invert -comment {csclk} [get_pins housekeeping/_8847_/X]
 #create_clock [get_pins  clocking/pll_clk ] -name "pll_clk"  -period 25
 #create_clock [get_pins  clocking/pll_clk90 ] -name "pll_clk90"  -period 25
-create_clock [get_pins  housekeeping/serial_clock ] -name "serial_clock"  -period 50
-create_clock [get_pins  housekeeping/serial_load ]  -name "serial_load"  -period 50
+#create_clock [get_pins  housekeeping/serial_clock ] -name "serial_clock"  -period 50
+#create_clock [get_pins  housekeeping/serial_load ]  -name "serial_load"  -period 50
 
+create_generated_clock -name serial_clock -add -source [get_ports {clock}] -master_clock [get_clocks master_clock] -divide_by 2 -comment {Serial Shift Clock} [get_pins housekeeping/serial_clock]
+create_generated_clock -name serial_load -add -source [get_ports {clock}] -master_clock [get_clocks master_clock] -divide_by 2 -comment {Serial Shift Clock} [get_pins housekeeping/serial_load]
 
 
 create_generated_clock -name wb_clk -add -source [get_ports {clock}] -master_clock [get_clocks master_clock] -divide_by 1 -comment {Wishbone User Clock} [get_pins mprj/wb_clk_i]
@@ -71,10 +72,10 @@
 set_case_analysis 0 [get_pins {mprj/u_wb_host/cfg_cska_wh[1]}]
 set_case_analysis 1 [get_pins {mprj/u_wb_host/cfg_cska_wh[0]}]
 
-set_case_analysis 1 [get_pins {mprj/u_intercon/cfg_cska_wi[3]}]
-set_case_analysis 0 [get_pins {mprj/u_intercon/cfg_cska_wi[2]}]
-set_case_analysis 0 [get_pins {mprj/u_intercon/cfg_cska_wi[0]}]
-set_case_analysis 0 [get_pins {mprj/u_intercon/cfg_cska_wi[1]}]
+set_case_analysis 0 [get_pins {mprj/u_intercon/cfg_cska_wi[3]}]
+set_case_analysis 1 [get_pins {mprj/u_intercon/cfg_cska_wi[2]}]
+set_case_analysis 1 [get_pins {mprj/u_intercon/cfg_cska_wi[0]}]
+set_case_analysis 1 [get_pins {mprj/u_intercon/cfg_cska_wi[1]}]
 
 #Keept the SRAM clock driving edge at pos edge
 set_case_analysis 0 [get_pins {mprj/u_riscv_top.u_intf/cfg_sram_lphase[0]}]
@@ -86,6 +87,10 @@
 #disable clock gating check at static clock select pins
 #set_false_path -through [get_pins mprj/u_wb_host/u_wbs_clk_sel.genblk1.u_mux/S]
 
+set_false_path -through [get_pins housekeeping/serial_resetn]
+#set_case_analysis 0 [get_pins housekeeping/serial_bb_enable]
+set_case_analysis 0 [get_pins housekeeping/_9787_/Q]
+
 set_propagated_clock [all_clocks]
 
 #set_multicycle_path -setup -from [get_clocks {master_clock}] -to [get_clocks {csclk}] 2
@@ -93,8 +98,9 @@
 
 set_clock_groups -name async_clock -asynchronous \
  -group [get_clocks {wb_clk master_clock}]\
- -group [get_clocks {csclk}]\
- -group [get_clocks {serial_clock serial_load }]\
+ -group [get_clocks {csclk} ]\
+ -group [get_clocks {serial_clock} ]\
+ -group [get_clocks {serial_load} ]\
  -group [get_clocks {user_clk2}]\
  -group [get_clocks {int_pll_clock}]\
  -group [get_clocks {wbs_clk_i}]\
@@ -162,7 +168,6 @@
 set_output_delay $output_delay_value  -clock [get_clocks {master_clock}] -add_delay [get_ports {flash_io0}]
 set_output_delay $output_delay_value  -clock [get_clocks {master_clock}] -add_delay [get_ports {flash_io1}]
 
-set_max_fanout $::env(SYNTH_MAX_FANOUT) [current_design]
 
 ## Set system monitoring mux select to zero so that the clock/user_clk monitoring is disabled 
 set_case_analysis 0 [get_pins housekeeping/_4449_/S]

diff --git a/sta/sdc/ycr_core_top.sdc b/sta/sdc/ycr_core_top.sdc
index e7fcf77..83fe873 100644
--- a/sta/sdc/ycr_core_top.sdc
+++ b/sta/sdc/ycr_core_top.sdc

@@ -14,27 +14,29 @@
 
 #IMEM Constraints
 set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_cmd_o}]
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_req_o}]
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_addr_o[*]}]
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_bl_o[*]}]
+set_output_delay -max 4.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_req_o}]
+set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_addr_o[*]}]
+set_output_delay -max 4.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_bl_o[*]}]
 
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_cmd_o}]
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_req_o}]
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_addr_o[*]}]
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2imem_bl_o[*]}]
 
-set_input_delay -max 4.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_req_ack_i}]
-set_input_delay -max 4.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_rdata_i[*]}]
+set_input_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_req_ack_i}]
+set_input_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_rdata_i[*]}]
+set_input_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_resp_i[*]}]
 
 set_input_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_req_ack_i}]
 set_input_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_rdata_i[*]}]
+set_input_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {imem2core_resp_i[*]}]
 
 #DMEM Constraints
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_cmd_o}]
+set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_cmd_o}]
 set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_req_o}]
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_addr_o[*]}]
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_wdata_o[*]}]
-set_output_delay -max 8.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_width_o[*]}]
+set_output_delay -max 7.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_addr_o[*]}]
+set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_wdata_o[*]}]
+set_output_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_width_o[*]}]
 
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_cmd_o}]
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_req_o}]
@@ -42,11 +44,13 @@
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_wdata_o[*]}]
 set_output_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {core2dmem_width_o[*]}]
 
-set_input_delay -max 4.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_req_ack_i}]
-set_input_delay -max 4.5000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_rdata_i[*]}]
+set_input_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_req_ack_i}]
+set_input_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_rdata_i[*]}]
+set_input_delay -max 6.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_resp_i[*]}]
 
 set_input_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_req_ack_i}]
 set_input_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_rdata_i[*]}]
+set_input_delay -min 2.0000 -clock [get_clocks {core_clk}] -add_delay [get_ports {dmem2core_resp_i[*]}]
 
 ###############################################################################
 # Environment
@@ -56,6 +60,9 @@
 puts "\[INFO\]: Setting load to: $cap_load"
 set_load  $cap_load [all_outputs]
 
+set_max_transition 1.00 [current_design]
+set_max_capacitance 0.2 [current_design]
+set_max_fanout 10 [current_design]
 ###############################################################################
 # Design Rules
 ###############################################################################

diff --git a/verilog/dv/Makefile b/verilog/dv/Makefile
index 238d50c..75dedef 100644
--- a/verilog/dv/Makefile
+++ b/verilog/dv/Makefile

@@ -19,13 +19,18 @@
 .SUFFIXES:
 .SILENT: clean all
 
-PATTERNS = user_basic user_uart user_uart1 user_risc_boot user_qspi user_sspi user_i2cm user_usb user_gpio user_aes user_spi_isp user_timer user_uart_master user_sram_exec user_cache_bypass user_pwm user_sema risc_boot uart_master wb_port arduino_arrays arduino_digital_port_control arduino_i2c_scaner arduino_risc_boot arduino_timer_intr arduino_ascii_table arduino_gpio_intr arduino_i2c_wr_rd arduino_string arduino_ws281x arduino_character_analysis arduino_hello_world arduino_multi_serial arduino_switchCase2 user_mcore_test1 user_mcore_test2 riscv_regress
+PATTERNS = user_basic user_uart user_uart1 user_risc_boot user_qspi user_sspi user_i2cm user_usb user_gpio user_aes user_spi_isp user_timer user_uart_master user_sram_exec user_cache_bypass user_pwm user_sema risc_boot uart_master_test1 uart_master_test2 wb_port arduino_arrays arduino_digital_port_control arduino_i2c_scaner arduino_risc_boot arduino_timer_intr arduino_ascii_table arduino_gpio_intr arduino_i2c_wr_rd arduino_string arduino_ws281x arduino_character_analysis arduino_hello_world arduino_multi_serial arduino_switchCase2 user_mcore_test1 user_mcore_test2
 
 all:  ${PATTERNS}
-	echo "################# Test case Summary #####################" > regression.rpt
+	echo "################# RTL Test case Summary #####################" > regression.rpt
 	xterm -e /usr/bin/watch -n 25 /bin/cat regression.rpt & 
 	for i in ${PATTERNS}; do \
-		( cd $$i && make | tee run.log && grep Monitor run.log | grep $$i >> ../regression.rpt) ; \
+		( cd $$i && make | tee run.rtl.log && grep Monitor run.rtl.log | grep $$i >> ../regression.rpt) ; \
+	done
+	echo "################# GL Test case Summary #####################" >> regression.rpt
+	\rm -rf */*.vvp
+	for i in ${PATTERNS}; do \
+		( cd $$i && make SIM=GL | tee run.gl.log && grep Monitor run.gl.log | grep $$i >> ../regression.rpt) ; \
 	done
 	echo "################# End of Test case Summary #####################" >> regression.rpt
 

diff --git a/verilog/dv/arduino_ascii_table/arduino_ascii_table_tb.v b/verilog/dv/arduino_ascii_table/arduino_ascii_table_tb.v
index 5152893..b618915 100644
--- a/verilog/dv/arduino_ascii_table/arduino_ascii_table_tb.v
+++ b/verilog/dv/arduino_ascii_table/arduino_ascii_table_tb.v

@@ -121,36 +121,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
 	initial begin
         uart_data_bit           = 2'b11;
         uart_stop_bits          = 0; // 0: 1 stop bit; 1: 2 stop bit;

diff --git a/verilog/dv/arduino_character_analysis/arduino_character_analysis_tb.v b/verilog/dv/arduino_character_analysis/arduino_character_analysis_tb.v
index 275b18b..7f5b1c0 100644
--- a/verilog/dv/arduino_character_analysis/arduino_character_analysis_tb.v
+++ b/verilog/dv/arduino_character_analysis/arduino_character_analysis_tb.v

@@ -150,35 +150,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
 
 	initial begin
         uart_data_bit           = 2'b11;

diff --git a/verilog/dv/arduino_gpio_intr/arduino_gpio_intr_tb.v b/verilog/dv/arduino_gpio_intr/arduino_gpio_intr_tb.v
index 23e360e..30797d1 100644
--- a/verilog/dv/arduino_gpio_intr/arduino_gpio_intr_tb.v
+++ b/verilog/dv/arduino_gpio_intr/arduino_gpio_intr_tb.v

@@ -186,36 +186,6 @@
            // Uart pins io_in[2], io_in[1] are excluded
           } = (u_top.p_reset_n == 0) ? 23'hZZ_ZZZZ: arduino_din; // Tri-state untill Strap pull completed
                     
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
     reg[7:0] pinmap[0:22]; //ardiono to gpio pinmaping
 
 	initial begin

diff --git a/verilog/dv/arduino_hello_world/arduino_hello_world_tb.v b/verilog/dv/arduino_hello_world/arduino_hello_world_tb.v
index 44b41db..d1141a8 100644
--- a/verilog/dv/arduino_hello_world/arduino_hello_world_tb.v
+++ b/verilog/dv/arduino_hello_world/arduino_hello_world_tb.v

@@ -122,36 +122,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
 	initial begin
                uart_data_bit           = 2'b11;
                uart_stop_bits          = 0; // 0: 1 stop bit; 1: 2 stop bit;

diff --git a/verilog/dv/arduino_i2c_scaner/arduino_i2c_scaner_tb.v b/verilog/dv/arduino_i2c_scaner/arduino_i2c_scaner_tb.v
index ace2a5b..72c3fbe 100644
--- a/verilog/dv/arduino_i2c_scaner/arduino_i2c_scaner_tb.v
+++ b/verilog/dv/arduino_i2c_scaner/arduino_i2c_scaner_tb.v

@@ -127,36 +127,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
 	initial begin
         uart_data_bit           = 2'b11;
         uart_stop_bits          = 0; // 0: 1 stop bit; 1: 2 stop bit;

diff --git a/verilog/dv/arduino_i2c_wr_rd/arduino_i2c_wr_rd_tb.v b/verilog/dv/arduino_i2c_wr_rd/arduino_i2c_wr_rd_tb.v
index 3c94c7d..40f9df8 100644
--- a/verilog/dv/arduino_i2c_wr_rd/arduino_i2c_wr_rd_tb.v
+++ b/verilog/dv/arduino_i2c_wr_rd/arduino_i2c_wr_rd_tb.v

@@ -127,36 +127,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
 	initial begin
         uart_data_bit           = 2'b11;
         uart_stop_bits          = 0; // 0: 1 stop bit; 1: 2 stop bit;

diff --git a/verilog/dv/arduino_multi_serial/arduino_multi_serial_tb.v b/verilog/dv/arduino_multi_serial/arduino_multi_serial_tb.v
index fc55f4c..45fe601 100644
--- a/verilog/dv/arduino_multi_serial/arduino_multi_serial_tb.v
+++ b/verilog/dv/arduino_multi_serial/arduino_multi_serial_tb.v

@@ -121,36 +121,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
 	initial begin
                uart_data_bit           = 2'b11;
                uart_stop_bits          = 0; // 0: 1 stop bit; 1: 2 stop bit;

diff --git a/verilog/dv/arduino_risc_boot/arduino_risc_boot_tb.v b/verilog/dv/arduino_risc_boot/arduino_risc_boot_tb.v
index c4b21ff..46e8d54 100644
--- a/verilog/dv/arduino_risc_boot/arduino_risc_boot_tb.v
+++ b/verilog/dv/arduino_risc_boot/arduino_risc_boot_tb.v

@@ -157,7 +157,7 @@
 	end
 
 // SSPI Slave I/F
-assign io_in[0]  = 1'b1; // RESET
+assign io_in[5]  = 1'b1; // RESET
 assign io_in[16] = 1'b0 ; // SPIS SCK 
 
 `ifndef GL // Drive Power for Hold Fix Buf

diff --git a/verilog/dv/arduino_string/arduino_string_tb.v b/verilog/dv/arduino_string/arduino_string_tb.v
index a02727a..567a67c 100644
--- a/verilog/dv/arduino_string/arduino_string_tb.v
+++ b/verilog/dv/arduino_string/arduino_string_tb.v

@@ -125,36 +125,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
 	initial begin
         uart_data_bit           = 2'b11;
         uart_stop_bits          = 0; // 0: 1 stop bit; 1: 2 stop bit;

diff --git a/verilog/dv/arduino_switchCase2/arduino_switchCase2_tb.v b/verilog/dv/arduino_switchCase2/arduino_switchCase2_tb.v
index 3432fca..8493415 100644
--- a/verilog/dv/arduino_switchCase2/arduino_switchCase2_tb.v
+++ b/verilog/dv/arduino_switchCase2/arduino_switchCase2_tb.v

@@ -150,36 +150,6 @@
 	   end
        `endif
 
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
-
      /************* Port-D Mapping **********************************
       *             Arduino-No
       *   Pin-2        0         PD0/RXD[0]                digital_io[6]

diff --git a/verilog/dv/arduino_timer_intr/arduino_timer_intr_tb.v b/verilog/dv/arduino_timer_intr/arduino_timer_intr_tb.v
index 043a19a..abbaa1d 100644
--- a/verilog/dv/arduino_timer_intr/arduino_timer_intr_tb.v
+++ b/verilog/dv/arduino_timer_intr/arduino_timer_intr_tb.v

@@ -124,39 +124,6 @@
        `endif
 
 
-	wire [15:0] irq_lines = u_top.u_pinmux.u_glbl_reg.irq_lines;
-
-
-
-       /*************************************************************************
-       * This is Baud Rate to clock divider conversion for Test Bench
-       * Note: DUT uses 16x baud clock, where are test bench uses directly
-       * baud clock, Due to 16x Baud clock requirement at RTL, there will be
-       * some resolution loss, we expect at lower baud rate this resolution
-       * loss will be less. For Quick simulation perpose higher baud rate used
-       * *************************************************************************/
-       task tb_set_uart_baud;
-       input [31:0] ref_clk;
-       input [31:0] baud_rate;
-       output [31:0] baud_div;
-       reg   [31:0] baud_div;
-       begin
-	  // for 230400 Baud = (50Mhz/230400) = 216.7
-	  baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
-	  // Baud 16x = 216/16 = 13
-          baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
-	  // Test bench baud clock , 16x of above value
-	  // 13 * 16 = 208,  
-	  // (Note if you see original value was 216, now it's 208 )
-          baud_div = baud_div * 16;
-	  // Test bench half cycle counter to toggle it 
-	  // 208/2 = 104
-           baud_div = baud_div/2;
-	  //As counter run's from 0 , substract from 1
-	   baud_div = baud_div-1;
-       end
-       endtask
-       
 
 
 	initial begin

diff --git a/verilog/dv/common/agents/caravel_task.sv b/verilog/dv/common/agents/caravel_task.sv
index 83a9c70..70ff764 100644
--- a/verilog/dv/common/agents/caravel_task.sv
+++ b/verilog/dv/common/agents/caravel_task.sv

@@ -170,3 +170,33 @@
 
 endgenerate
 
+ /*************************************************************************
+ * This is Baud Rate to clock divider conversion for Test Bench
+ * Note: DUT uses 16x baud clock, where are test bench uses directly
+ * baud clock, Due to 16x Baud clock requirement at RTL, there will be
+ * some resolution loss, we expect at lower baud rate this resolution
+ * loss will be less. For Quick simulation perpose higher baud rate used
+ * *************************************************************************/
+ task tb_set_uart_baud;
+ input [31:0] ref_clk;
+ input [31:0] baud_rate;
+ output [31:0] baud_div;
+ reg   [31:0] baud_div;
+ begin
+// for 230400 Baud = (50Mhz/230400) = 216.7
+baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
+// Baud 16x = 216/16 = 13
+    baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
+// Test bench baud clock , 16x of above value
+// 13 * 16 = 208,  
+// (Note if you see original value was 216, now it's 208 )
+    baud_div = baud_div * 16;
+// Test bench half cycle counter to toggle it 
+// 208/2 = 104
+     baud_div = baud_div/2;
+//As counter run's from 0 , substract from 1
+ baud_div = baud_div-1;
+ end
+ endtask
+
+

diff --git a/verilog/dv/common/agents/uart_master_tasks.sv b/verilog/dv/common/agents/uart_master_tasks.sv
index cd0af94..e18eff4 100644
--- a/verilog/dv/common/agents/uart_master_tasks.sv
+++ b/verilog/dv/common/agents/uart_master_tasks.sv

@@ -73,7 +73,7 @@
            8'd17 : data[3:0]   = char2hex(read_data);
       endcase
 	  i = i+1;
-   $display("received Data: %x",data);
+   $display("received Data: 0x%x",data);
    end
 
 end
@@ -119,9 +119,9 @@
     i = i+1;
    end
    if(rxd_data == exp_data) begin
-      // $display("STATUS: ADDRESS: %x RXD: %x", addr,rxd_data);
+      $display("STATUS: ADDRESS: 0x%x RXD: 0x%x", addr,rxd_data);
    end else begin
-      $display("ERROR:  ADDRESS: %x EXP: %x RXD: %x", addr,exp_data,rxd_data);
+      $display("ERROR:  ADDRESS: 0x%x EXP: %x RXD: 0x%x", addr,exp_data,rxd_data);
       test_fail = 1;
    end
 

diff --git a/verilog/dv/common/agents/user_tasks.sv b/verilog/dv/common/agents/user_tasks.sv
index 1d3e0c1..0ea83c8 100644
--- a/verilog/dv/common/agents/user_tasks.sv
+++ b/verilog/dv/common/agents/user_tasks.sv

@@ -90,7 +90,7 @@
 begin
    // Run in Fast Sim Mode
    `ifdef GL
-       force u_top.u_wb_host.u_reg._8654_.Q= 1'b1; 
+       force u_top.u_wb_host._09718_.Q= 1'b1; 
    `else
        force u_top.u_wb_host.u_reg.u_fastsim_buf.X = 1'b1; 
     `endif
@@ -238,7 +238,7 @@
    //while((read_data >> (d_risc_id*8)) != 8'h1) begin
    while(read_data  != 8'h1) begin // Temp fix - Hardcoded to risc_id = 0
        wb_user_core_read(`ADDR_SPACE_GLBL+`GLBL_CFG_MAIL_BOX,read_data);
-	    repeat (1000) @(posedge clock);
+	    repeat (100) @(posedge clock);
    end
 
    $display("Status:  RISCV Core is Booted ");
@@ -266,6 +266,23 @@
 end
 endtask
 
+//-----------------------
+// Set TB ready indication
+//-----------------------
+task set_tb_ready;
+begin
+   // GLBL_CFG_MAIL_BOX used as mail box, each core update boot up handshake at 8 bit
+   // bit[7:0]  - core-0
+   // bit[15:8]  - core-1
+   // bit[23:16] - core-2
+   // bit[31:24] - core-3
+   wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_MAIL_BOX,32'h81818181);
+
+   $display("Status:  Set TB Ready Indication");
+
+end
+endtask
+
 `endif
 
 //-------------------------------
@@ -404,6 +421,34 @@
 end
 endtask
 
+ /*************************************************************************
+ * This is Baud Rate to clock divider conversion for Test Bench
+ * Note: DUT uses 16x baud clock, where are test bench uses directly
+ * baud clock, Due to 16x Baud clock requirement at RTL, there will be
+ * some resolution loss, we expect at lower baud rate this resolution
+ * loss will be less. For Quick simulation perpose higher baud rate used
+ * *************************************************************************/
+ task tb_set_uart_baud;
+ input [31:0] ref_clk;
+ input [31:0] baud_rate;
+ output [31:0] baud_div;
+ reg   [31:0] baud_div;
+ begin
+// for 230400 Baud = (50Mhz/230400) = 216.7
+baud_div = ref_clk/baud_rate; // Get the Bit Baud rate
+// Baud 16x = 216/16 = 13
+    baud_div = baud_div/16; // To find the RTL baud 16x div value to find similar resolution loss in test bench
+// Test bench baud clock , 16x of above value
+// 13 * 16 = 208,  
+// (Note if you see original value was 216, now it's 208 )
+    baud_div = baud_div * 16;
+// Test bench half cycle counter to toggle it 
+// 208/2 = 104
+     baud_div = baud_div/2;
+//As counter run's from 0 , substract from 1
+ baud_div = baud_div-1;
+ end
+ endtask
 
 /**
 `ifdef GL

diff --git a/verilog/dv/risc_boot/user_uart.dump b/verilog/dv/risc_boot/user_uart.dump
deleted file mode 100644
index c18c8dd..0000000
--- a/verilog/dv/risc_boot/user_uart.dump
+++ /dev/null

@@ -1,240 +0,0 @@
-
-user_uart.elf:     file format elf32-littleriscv
-
-
-Disassembly of section .text.init:
-
-00000000 <SIM_EXIT-0xf4>:
-	...
-
-000000f4 <SIM_EXIT>:
-  f4:	00000013          	nop
-
-000000f8 <SIM_STOP>:
-  f8:	0000006f          	j	f8 <SIM_STOP>
-  fc:	ffff                	0xffff
-  fe:	ffff                	0xffff
-
-Disassembly of section .text:
-
-00000100 <machine_trap_entry-0xc0>:
-	...
-
-000001c0 <machine_trap_entry>:
- 1c0:	1200006f          	j	2e0 <trap_entry>
- 1c4:	00000013          	nop
- 1c8:	00000013          	nop
- 1cc:	00000013          	nop
- 1d0:	00000013          	nop
- 1d4:	00000013          	nop
- 1d8:	00000013          	nop
- 1dc:	00000013          	nop
- 1e0:	00000013          	nop
- 1e4:	00000013          	nop
- 1e8:	00000013          	nop
- 1ec:	00000013          	nop
- 1f0:	00000013          	nop
- 1f4:	00000013          	nop
- 1f8:	00000013          	nop
- 1fc:	00000013          	nop
-
-00000200 <_start>:
- 200:	00000093          	li	ra,0
- 204:	00000113          	li	sp,0
- 208:	00000193          	li	gp,0
- 20c:	00000213          	li	tp,0
- 210:	00000293          	li	t0,0
- 214:	00000313          	li	t1,0
- 218:	00000393          	li	t2,0
- 21c:	00000413          	li	s0,0
- 220:	00000493          	li	s1,0
- 224:	00000513          	li	a0,0
- 228:	00000593          	li	a1,0
- 22c:	00000613          	li	a2,0
- 230:	00000693          	li	a3,0
- 234:	00000713          	li	a4,0
- 238:	00000793          	li	a5,0
- 23c:	00000813          	li	a6,0
- 240:	00000893          	li	a7,0
- 244:	00000913          	li	s2,0
- 248:	00000993          	li	s3,0
- 24c:	00000a13          	li	s4,0
- 250:	00000a93          	li	s5,0
- 254:	00000b13          	li	s6,0
- 258:	00000b93          	li	s7,0
- 25c:	00000c13          	li	s8,0
- 260:	00000c93          	li	s9,0
- 264:	00000d13          	li	s10,0
- 268:	00000d93          	li	s11,0
- 26c:	00000e13          	li	t3,0
- 270:	00000e93          	li	t4,0
- 274:	00000f13          	li	t5,0
- 278:	00000f93          	li	t6,0
- 27c:	08000197          	auipc	gp,0x8000
- 280:	58418193          	addi	gp,gp,1412 # 8000800 <__global_pointer$>
- 284:	08000597          	auipc	a1,0x8000
- 288:	d7c58593          	addi	a1,a1,-644 # 8000000 <__BSS_START__>
- 28c:	08000617          	auipc	a2,0x8000
- 290:	d7460613          	addi	a2,a2,-652 # 8000000 <__BSS_START__>
- 294:	a021                	j	29c <_start+0x9c>
- 296:	0005a023          	sw	zero,0(a1)
- 29a:	0591                	addi	a1,a1,4
- 29c:	fec59de3          	bne	a1,a2,296 <_start+0x96>
- 2a0:	0c480117          	auipc	sp,0xc480
- 2a4:	56010113          	addi	sp,sp,1376 # c480800 <__C_STACK_TOP__>
- 2a8:	0c4902b7          	lui	t0,0xc490
- 2ac:	4305                	li	t1,1
- 2ae:	0062a023          	sw	t1,0(t0) # c490000 <__C_STACK_TOP__+0xf800>
- 2b2:	0c4902b7          	lui	t0,0xc490
- 2b6:	00428293          	addi	t0,t0,4 # c490004 <__C_STACK_TOP__+0xf804>
- 2ba:	06300313          	li	t1,99
- 2be:	0062a023          	sw	t1,0(t0)
- 2c2:	0c4902b7          	lui	t0,0xc490
- 2c6:	01028293          	addi	t0,t0,16 # c490010 <__C_STACK_TOP__+0xf810>
- 2ca:	537d                	li	t1,-1
- 2cc:	0062a023          	sw	t1,0(t0)
- 2d0:	0062a223          	sw	t1,4(t0)
- 2d4:	4501                	li	a0,0
- 2d6:	4581                	li	a1,0
- 2d8:	0b2000ef          	jal	ra,38a <main>
- 2dc:	1240006f          	j	400 <sc_exit>
-
-000002e0 <trap_entry>:
- 2e0:	716d                	addi	sp,sp,-272
- 2e2:	c206                	sw	ra,4(sp)
- 2e4:	c40a                	sw	sp,8(sp)
- 2e6:	c60e                	sw	gp,12(sp)
- 2e8:	c812                	sw	tp,16(sp)
- 2ea:	ca16                	sw	t0,20(sp)
- 2ec:	cc1a                	sw	t1,24(sp)
- 2ee:	ce1e                	sw	t2,28(sp)
- 2f0:	d022                	sw	s0,32(sp)
- 2f2:	d226                	sw	s1,36(sp)
- 2f4:	d42a                	sw	a0,40(sp)
- 2f6:	d62e                	sw	a1,44(sp)
- 2f8:	d832                	sw	a2,48(sp)
- 2fa:	da36                	sw	a3,52(sp)
- 2fc:	dc3a                	sw	a4,56(sp)
- 2fe:	de3e                	sw	a5,60(sp)
- 300:	c0c2                	sw	a6,64(sp)
- 302:	c2c6                	sw	a7,68(sp)
- 304:	c4ca                	sw	s2,72(sp)
- 306:	c6ce                	sw	s3,76(sp)
- 308:	c8d2                	sw	s4,80(sp)
- 30a:	cad6                	sw	s5,84(sp)
- 30c:	ccda                	sw	s6,88(sp)
- 30e:	cede                	sw	s7,92(sp)
- 310:	d0e2                	sw	s8,96(sp)
- 312:	d2e6                	sw	s9,100(sp)
- 314:	d4ea                	sw	s10,104(sp)
- 316:	d6ee                	sw	s11,108(sp)
- 318:	d8f2                	sw	t3,112(sp)
- 31a:	daf6                	sw	t4,116(sp)
- 31c:	dcfa                	sw	t5,120(sp)
- 31e:	defe                	sw	t6,124(sp)
- 320:	34202573          	csrr	a0,mcause
- 324:	341025f3          	csrr	a1,mepc
- 328:	860a                	mv	a2,sp
- 32a:	048000ef          	jal	ra,372 <handle_trap>
- 32e:	4092                	lw	ra,4(sp)
- 330:	4122                	lw	sp,8(sp)
- 332:	41b2                	lw	gp,12(sp)
- 334:	4242                	lw	tp,16(sp)
- 336:	42d2                	lw	t0,20(sp)
- 338:	4362                	lw	t1,24(sp)
- 33a:	43f2                	lw	t2,28(sp)
- 33c:	5402                	lw	s0,32(sp)
- 33e:	5492                	lw	s1,36(sp)
- 340:	5522                	lw	a0,40(sp)
- 342:	55b2                	lw	a1,44(sp)
- 344:	5642                	lw	a2,48(sp)
- 346:	56d2                	lw	a3,52(sp)
- 348:	5762                	lw	a4,56(sp)
- 34a:	57f2                	lw	a5,60(sp)
- 34c:	4806                	lw	a6,64(sp)
- 34e:	4896                	lw	a7,68(sp)
- 350:	4926                	lw	s2,72(sp)
- 352:	49b6                	lw	s3,76(sp)
- 354:	4a46                	lw	s4,80(sp)
- 356:	4ad6                	lw	s5,84(sp)
- 358:	4b66                	lw	s6,88(sp)
- 35a:	4bf6                	lw	s7,92(sp)
- 35c:	5c06                	lw	s8,96(sp)
- 35e:	5c96                	lw	s9,100(sp)
- 360:	5d26                	lw	s10,104(sp)
- 362:	5db6                	lw	s11,108(sp)
- 364:	5e46                	lw	t3,112(sp)
- 366:	5ed6                	lw	t4,116(sp)
- 368:	5f66                	lw	t5,120(sp)
- 36a:	5ff6                	lw	t6,124(sp)
- 36c:	6151                	addi	sp,sp,272
- 36e:	30200073          	mret
-
-00000372 <handle_trap>:
- 372:	d83ff06f          	j	f4 <SIM_EXIT>
-	...
-
-00000380 <exit>:
- 380:	67c1                	lui	a5,0x10
- 382:	8d5d                	or	a0,a0,a5
- 384:	7c051073          	csrw	0x7c0,a0
- 388:	8082                	ret
-
-0000038a <main>:
- 38a:	100207b7          	lui	a5,0x10020
- 38e:	43d8                	lw	a4,4(a5)
- 390:	80000637          	lui	a2,0x80000
- 394:	fff64393          	not	t2,a2
- 398:	01f76293          	ori	t0,a4,31
- 39c:	0057a223          	sw	t0,4(a5) # 10020004 <__C_STACK_TOP__+0x3b9f804>
- 3a0:	4bd4                	lw	a3,20(a5)
- 3a2:	10010337          	lui	t1,0x10010
- 3a6:	f1402873          	csrr	a6,mhartid
- 3aa:	0076f533          	and	a0,a3,t2
- 3ae:	cbc8                	sw	a0,20(a5)
- 3b0:	4bcc                	lw	a1,20(a5)
- 3b2:	00381e13          	slli	t3,a6,0x3
- 3b6:	4e9d                	li	t4,7
- 3b8:	1005e893          	ori	a7,a1,256
- 3bc:	0117aa23          	sw	a7,20(a5)
- 3c0:	4f05                	li	t5,1
- 3c2:	01d32023          	sw	t4,0(t1) # 10010000 <__C_STACK_TOP__+0x3b8f800>
- 3c6:	01cf1fb3          	sll	t6,t5,t3
- 3ca:	03f7ae23          	sw	t6,60(a5)
- 3ce:	02032783          	lw	a5,32(t1)
- 3d2:	dff5                	beqz	a5,3ce <main+0x44>
- 3d4:	01032703          	lw	a4,16(t1)
- 3d8:	00177293          	andi	t0,a4,1
- 3dc:	fe0299e3          	bnez	t0,3ce <main+0x44>
- 3e0:	01832683          	lw	a3,24(t1)
- 3e4:	00d32a23          	sw	a3,20(t1)
- 3e8:	b7dd                	j	3ce <main+0x44>
-	...
-
-00000400 <sc_exit>:
- 400:	00000297          	auipc	t0,0x0
- 404:	cf428293          	addi	t0,t0,-780 # f4 <SIM_EXIT>
- 408:	8282                	jr	t0
- 40a:	00000013          	nop
- 40e:	00000013          	nop
- 412:	00000013          	nop
- 416:	00000013          	nop
- 41a:	00000013          	nop
- 41e:	0001                	nop
-	...
-
-Disassembly of section .stack:
-
-0c480400 <__C_STACK_TOP__-0x400>:
-	...
-
-Disassembly of section .comment:
-
-00000000 <.comment>:
-   0:	3a434347          	fmsub.d	ft6,ft6,ft4,ft7,rmm
-   4:	2820                	fld	fs0,80(s0)
-   6:	29554e47          	fmsub.s	ft8,fa0,fs5,ft5,rmm
-   a:	3620                	fld	fs0,104(a2)
-   c:	312e                	fld	ft2,232(sp)
-   e:	302e                	fld	ft0,232(sp)
-	...

diff --git a/verilog/dv/uart_master/Makefile b/verilog/dv/uart_master_test1/Makefile
similarity index 100%
rename from verilog/dv/uart_master/Makefile
rename to verilog/dv/uart_master_test1/Makefile


diff --git a/verilog/dv/uart_master/run_verilog b/verilog/dv/uart_master_test1/run_verilog
similarity index 100%
rename from verilog/dv/uart_master/run_verilog
rename to verilog/dv/uart_master_test1/run_verilog


diff --git a/verilog/dv/uart_master/uart_master.c b/verilog/dv/uart_master_test1/uart_master_test1.c
similarity index 100%
rename from verilog/dv/uart_master/uart_master.c
rename to verilog/dv/uart_master_test1/uart_master_test1.c


diff --git a/verilog/dv/uart_master/uart_master_tb.v b/verilog/dv/uart_master_test1/uart_master_test1_tb.v
similarity index 96%
rename from verilog/dv/uart_master/uart_master_tb.v
rename to verilog/dv/uart_master_test1/uart_master_test1_tb.v
index 2a99ff7..fe63f38 100644
--- a/verilog/dv/uart_master/uart_master_tb.v
+++ b/verilog/dv/uart_master_test1/uart_master_test1_tb.v

@@ -18,8 +18,8 @@
 `timescale 1 ns / 1 ps
 `include "uart_agent.v"
 
-`define TB_HEX "uart_master.hex"
-`define TB_TOP  uart_master_tb
+`define TB_HEX "uart_master_test1.hex"
+`define TB_TOP  uart_master_test1_tb
 module `TB_TOP;
 	reg clock;
 	reg RSTB;
@@ -75,8 +75,8 @@
 		$dumpfile("simx.vcd");
 		$dumpvars(2, `TB_TOP);
 		$dumpvars(0, `TB_TOP.tb_master_uart);
+		$dumpvars(1, `TB_TOP.u_top.mprj.u_wb_host);
 		$dumpvars(0, `TB_TOP.u_top.mprj.u_wb_host.u_uart2wb);
-		$dumpvars(1, `TB_TOP.tb_master_uart);
 		$dumpvars(0, `TB_TOP.u_top.mprj.u_pinmux);
 	end
        `endif
@@ -103,7 +103,7 @@
 	initial begin
 
             strap_in = 0;
-            strap_in[`PSTRAP_UARTM_CFG] = 0; // uart master config control - load from LA
+            strap_in[`PSTRAP_UARTM_CFG] = 2'b11; // uart master config control - load from LA
             apply_strap(strap_in);
 
             uart_data_bit           = 2'b11;
@@ -244,7 +244,7 @@
 	);
 
 	spiflash #(
-		.FILENAME("uart_master.hex")
+		.FILENAME(`TB_HEX)
 	) spiflash (
 		.csb(flash_csb),
 		.clk(flash_clk),

diff --git a/verilog/dv/uart_master_test2/Makefile b/verilog/dv/uart_master_test2/Makefile
new file mode 100644
index 0000000..b333a87
--- /dev/null
+++ b/verilog/dv/uart_master_test2/Makefile

@@ -0,0 +1,207 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+ 
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+DESIGNS?=../../..
+CONFIG = caravel_user_project
+TOOLS?=/opt/riscv32i/
+
+########################################################
+#include $(MCW_ROOT)/verilog/dv/make/env.makefile
+########################################################
+#######################################################################
+## Global Environment Variables for local repo  
+#######################################################################
+
+export PDK_PATH =      $(PDK_ROOT)/sky130A
+export VIP_PATH =      $(CORE_VERILOG_PATH)/dv/vip
+export FIRMWARE_PATH = $(CORE_VERILOG_PATH)/dv/firmware
+
+#######################################################################
+## Caravel Verilog for Integration Tests
+#######################################################################
+
+export CARAVEL_VERILOG_PATH ?=  $(CARAVEL_ROOT)/verilog
+export CORE_VERILOG_PATH    ?=  $(CARAVEL_ROOT)/mgmt_core_wrapper/verilog
+export USER_PROJECT_VERILOG ?=  $(DESIGNS)/verilog
+
+export CARAVEL_PATH = $(CARAVEL_VERILOG_PATH)
+export VERILOG_PATH = $(CORE_VERILOG_PATH)
+
+#######################################################################
+## Compiler Information 
+#######################################################################
+
+export TOOLS     ?=  /opt/riscv32i 
+export GCC_PATH  ?=  $(TOOLS)/bin
+GCC_PREFIX?=riscv32-unknown-elf
+
+
+
+
+
+
+
+
+########################################################
+#include $(MCW_ROOT)/verilog/dv/make/var.makefile
+########################################################
+
+CPU=vexriscv
+CPUFAMILY=riscv
+CPUFLAGS=-march=rv32i      -mabi=ilp32 -D__vexriscv__
+CPUENDIANNESS=little
+CLANG=0
+
+
+######################################################
+# include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+######################################################
+
+ifeq ($(CPU),picorv32)
+	LINKER_SCRIPT=$(FIRMWARE_PATH)/sections.lds
+	SOURCE_FILES=$(FIRMWARE_PATH)/start.s 
+	VERILOG_FILES=
+endif
+
+ifeq ($(CPU),ibex)
+	LINKER_SCRIPT=$(FIRMWARE_PATH)/link_ibex.ld
+	SOURCE_FILES=$(FIRMWARE_PATH)/crt0_ibex.S $(FIRMWARE_PATH)/simple_system_common.c
+# 	VERILOG_FILES=../ibex/*
+	VERILOG_FILES=
+endif
+
+ifeq ($(CPU),vexriscv)
+# 	LINKER_SCRIPT=$(FIRMWARE_PATH)/sections_vexriscv.lds
+# 	SOURCE_FILES=$(FIRMWARE_PATH)/start_caravel_vexriscv.s
+	LINKER_SCRIPT=$(FIRMWARE_PATH)/sections.lds
+	SOURCE_FILES=$(FIRMWARE_PATH)/crt0_vex.S $(FIRMWARE_PATH)/isr.c
+	VERILOG_FILES=
+endif
+
+
+
+#####################################################
+#include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+######################################################
+
+export IVERILOG_DUMPER = fst
+
+# RTL/GL/GL_SDF
+SIM?=RTL
+DUMP?=OFF
+
+
+.SUFFIXES:
+
+
+all:  ${BLOCKS:=.vcd} ${BLOCKS:=.vvp}
+
+
+#.SUFFIXES:
+
+	
+##############################################################################
+# Runing the simulations
+##############################################################################
+
+%.vvp: %_tb.v 
+
+## RTL
+ifeq ($(SIM),RTL)
+   ifeq ($(DUMP),OFF)
+	iverilog -g2005-sv -Ttyp -DFUNCTIONAL -DSIM -DUSE_POWER_PINS -DUNIT_DELAY=#0.1 \
+        -f$(USER_PROJECT_VERILOG)/includes/includes.rtl.$(CONFIG) \
+        -f$(VERILOG_PATH)/includes/includes.rtl.caravel \
+        -o $@ $<
+    else  
+	iverilog -g2005-sv -DWFDUMP -Ttyp -DFUNCTIONAL -DSIM -DUSE_POWER_PINS -DUNIT_DELAY=#0.1 \
+        -f$(USER_PROJECT_VERILOG)/includes/includes.rtl.$(CONFIG) \
+        -f$(VERILOG_PATH)/includes/includes.rtl.caravel \
+        -o $@ $<
+   endif
+endif
+
+##GL
+ifeq ($(SIM),GL)
+   ifeq ($(DUMP),OFF)
+	iverilog -Ttyp -DFUNCTIONAL -DGL -DUSE_POWER_PINS -DUNIT_DELAY=#0.1 \
+        -f$(VERILOG_PATH)/includes/includes.gl.caravel \
+        -f$(USER_PROJECT_VERILOG)/includes/includes.gl.$(CONFIG) -o $@ $<
+    else
+	iverilog -Ttyp -DWFDUMP -DFUNCTIONAL -DGL -DUSE_POWER_PINS -DUNIT_DELAY=#0.1 \
+        -f$(VERILOG_PATH)/includes/includes.gl.caravel \
+        -f$(USER_PROJECT_VERILOG)/includes/includes.gl.$(CONFIG) -o $@ $<
+    endif
+endif 
+
+## GL+SDF
+ifeq ($(SIM),GL_SDF)
+    ifeq ($(CONFIG),caravel_user_project)
+		cvc64  +interp \
+		+define+SIM +define+FUNCTIONAL +define+GL +define+USE_POWER_PINS +define+UNIT_DELAY +define+ENABLE_SDF \
+		+change_port_type +dump2fst +fst+parallel2=on   +nointeractive +notimingchecks +mipdopt \
+		-f $(VERILOG_PATH)/includes/includes.gl+sdf.caravel \
+		-f $(USER_PROJECT_VERILOG)/includes/includes.gl+sdf.$(CONFIG) $<
+	else
+		cvc64  +interp \
+		+define+SIM +define+FUNCTIONAL +define+GL +define+USE_POWER_PINS +define+UNIT_DELAY +define+ENABLE_SDF \
+		+change_port_type +dump2fst +fst+parallel2=on   +nointeractive +notimingchecks +mipdopt \
+		-f $(VERILOG_PATH)/includes/includes.gl+sdf.$(CONFIG) \
+		-f $CARAVEL_PATH/gl/__user_project_wrapper.v $<
+    endif
+endif
+
+%.vcd: %.vvp
+	vvp  $<
+
+# twinwave: RTL-%.vcd GL-%.vcd
+#     twinwave RTL-$@ * + GL-$@ *
+
+check-env:
+ifndef PDK_ROOT
+	$(error PDK_ROOT is undefined, please export it before running make)
+endif
+ifeq (,$(wildcard $(PDK_ROOT)/sky130A))
+	$(error $(PDK_ROOT)/sky130A not found, please install pdk before running make)
+endif
+ifeq (,$(wildcard $(GCC_PREFIX)-gcc ))
+	$(error $(GCC_PREFIX)-gcc is not found, please export GCC_PATH and GCC_PREFIX before running make)
+endif
+# check for efabless style installation
+ifeq (,$(wildcard $(PDK_ROOT)/sky130A/libs.ref/*/verilog))
+SIM_DEFINES := ${SIM_DEFINES} -DEF_STYLE
+endif
+
+
+# ---- Clean ----
+
+clean:
+	\rm  -f *.elf *.hex *.bin *.vvp *.log *.vcd *.lst *.hexe
+
+.PHONY: clean hex all
+
+
+
+
+
+

diff --git a/verilog/dv/uart_master/run_verilog b/verilog/dv/uart_master_test2/run_verilog
similarity index 100%
copy from verilog/dv/uart_master/run_verilog
copy to verilog/dv/uart_master_test2/run_verilog


diff --git a/verilog/dv/uart_master/uart_master_tb.v b/verilog/dv/uart_master_test2/uart_master_test2_tb.v
similarity index 96%
copy from verilog/dv/uart_master/uart_master_tb.v
copy to verilog/dv/uart_master_test2/uart_master_test2_tb.v
index 2a99ff7..ba4fdeb 100644
--- a/verilog/dv/uart_master/uart_master_tb.v
+++ b/verilog/dv/uart_master_test2/uart_master_test2_tb.v

@@ -21,6 +21,7 @@
 `define TB_HEX "uart_master.hex"
 `define TB_TOP  uart_master_tb
 module `TB_TOP;
+
 	reg clock;
 	reg RSTB;
 	reg CSB;
@@ -111,7 +112,7 @@
             uart_stick_parity       = 0; // 1: force even parity
             uart_parity_en          = 0; // parity enable
             uart_even_odd_parity    = 1; // 0: odd parity; 1: even parity
-            uart_divisor            = 15;// divided by n * 16
+	        tb_set_uart_baud(50000000,288000,uart_divisor);// 50Mhz Ref clock, Baud Rate: 230400
             uart_timeout            = 200;// wait time limit
             uart_fifo_enable        = 0;	// fifo mode disable
             tb_master_uart.debug_mode = 0; // disable debug display
@@ -125,6 +126,7 @@
             tb_master_uart.uart_init;
             tb_master_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, 
         	                          uart_stick_parity, uart_timeout, uart_divisor);
+            tb_master_uart.write_char(8'hA); // New line for auto detect
            //$write ("\n(%t)Response:\n",$time);
            // Wait for Initial Command Format from the uart master
            flag = 0;
@@ -243,6 +245,7 @@
 		.resetb	  (RSTB)
 	);
 
+/*** No Caravel SPI needed **************
 	spiflash #(
 		.FILENAME("uart_master.hex")
 	) spiflash (
@@ -253,7 +256,7 @@
 		.io2(),			// not used
 		.io3()			// not used
 	);
-
+************************/
 
 
 

diff --git a/verilog/dv/user_basic/user_basic_tb.v b/verilog/dv/user_basic/user_basic_tb.v
index 2a1858d..feab774 100644
--- a/verilog/dv/user_basic/user_basic_tb.v
+++ b/verilog/dv/user_basic/user_basic_tb.v

@@ -74,6 +74,7 @@
 `timescale 1 ns/1 ps
 
 `include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v"
+`include "uart_agent.v"
 `include "user_params.svh"
 
 `define TB_TOP user_basic_tb
@@ -100,7 +101,6 @@
 
 reg [15:0]     uart_rx_nu           ;
 reg [15:0]     uart_tx_nu           ;
-reg [7:0]      uart_write_data [0:39];
 reg 	       uart_fifo_enable     ;	// fifo mode disable
 
 wire           clock_mon;
@@ -109,8 +109,10 @@
 wire [31:0]    strap_sticky;
 reg  [7:0]     test_id;
 reg  [25:0]    bcount;
+wire uart_txd,uart_rxd;
+reg            flag;
 
-assign io_in = {26'h0,xtal_clk,11'h0};
+assign io_in = {26'h0,xtal_clk,4'h0,uart_rxd,6'h0};
 
 wire [14:0] pstrap_select;
 
@@ -317,7 +319,9 @@
        $display("Step-5, Checking the uart Master baud-16x clock is 9600* 16");
        test_id = 5;
 
-       apply_strap(16'h10); // [4] -  // uart master config control - constant value based on system clock selection
+       strap_in = 0;
+       strap_in[`PSTRAP_UARTM_CFG] = 2'b01; // constant value based on system clock-50Mhz
+       apply_strap(strap_in); 
 
        repeat (10) @(posedge clock);
        uartm_clock_monitor(6510); // 1/(9600*16) = 6510 ns, Assumption is user_clock1 = 40Mhz
@@ -329,13 +333,97 @@
        end
        $display("##########################################################");
 
+       $display("##########################################################");
+       $display("Step-6, Checking the uart Master Auto Detect Mode");
+       test_id = 6;
 
+       strap_in = 0;
+       strap_in[`PSTRAP_UARTM_CFG] = 2'b00; // Auto Detect Mode
+       apply_strap(strap_in); 
+
+       tb_master_uart.uart_init;
+       uart_data_bit           = 2'b11;
+       uart_stop_bits          = 1; // 0: 1 stop bit; 1: 2 stop bit;
+       uart_stick_parity       = 0; // 1: force even parity
+       uart_parity_en          = 0; // parity enable
+       uart_even_odd_parity    = 1; // 0: odd parity; 1: even parity
+       uart_divisor            = 15;// divided by n * 16
+       uart_timeout            = 600;// wait time limit
+       uart_fifo_enable        = 0;	// fifo mode disable
+       tb_master_uart.debug_mode = 0; // disable debug display
+	   tb_set_uart_baud(50000000,288000,uart_divisor);// 50Mhz Ref clock, Baud Rate: 288000
+       tb_master_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, uart_stick_parity, uart_timeout, uart_divisor);
+
+       repeat (10) @(posedge clock);
+       tb_master_uart.write_char(8'hA); // New line for auto detect
+
+       repeat (10) @(posedge clock);
+       uartm_clock_monitor(200); // 1/(28800*16) = 217 ns - Adjusting 20ns (50Mhz) boundary => 200 
+
+       // Wait for Initial command from uart master
+       flag = 0;
+       while(flag == 0)
+       begin
+            tb_master_uart.read_char(read_data,flag);
+            $write ("%c",read_data);
+       end
+       uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,CHIP_SIGNATURE);
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-6,  Checking the uart Master Auto Detect baud-28800 - FAILED");
+       end else begin
+          $display("STATUS: Step-6,  Checking the uart Master Auto Detect baud-28800  - PASSED");
+       end
+       $display("##########################################################");
+
+       $display("##########################################################");
+       $display("Step-7, Checking the uart Master Auto Detect Mode");
+       test_id = 7;
+
+       strap_in = 0;
+       strap_in[`PSTRAP_UARTM_CFG] = 2'b00; // Auto Detect Mode
+       apply_strap(strap_in); 
+
+       tb_master_uart.uart_init;
+       uart_data_bit           = 2'b11;
+       uart_stop_bits          = 1; // 0: 1 stop bit; 1: 2 stop bit;
+       uart_stick_parity       = 0; // 1: force even parity
+       uart_parity_en          = 0; // parity enable
+       uart_even_odd_parity    = 1; // 0: odd parity; 1: even parity
+       uart_divisor            = 15;// divided by n * 16
+       uart_timeout            = 600;// wait time limit
+       uart_fifo_enable        = 0;	// fifo mode disable
+       tb_master_uart.debug_mode = 0; // disable debug display
+	   tb_set_uart_baud(50000000,38400,uart_divisor);// 50Mhz Ref clock, Baud Rate: 38400
+       tb_master_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, uart_stick_parity, uart_timeout, uart_divisor);
+
+       repeat (10) @(posedge clock);
+       tb_master_uart.write_char(8'hA); // New line for auto detect
+
+       repeat (10) @(posedge clock);
+       uartm_clock_monitor(1620); // 1/(38400*16) = 1627.6 ns, Adjusting to 20ns boundary => 1620
+   
+       // Wait for Initial command from uart master
+       flag = 0;
+       while(flag == 0)
+       begin
+            tb_master_uart.read_char(read_data,flag);
+            $write ("%c",read_data);
+       end
+       uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,CHIP_SIGNATURE);
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-7,  Checking the uart Master Auto Detect baud-38400 - FAILED");
+       end else begin
+          $display("STATUS: Step-7,  Checking the uart Master Auto Detect baud-38400  - PASSED");
+       end
+       $display("##########################################################");
         
        `ifndef GL  
        $display("###################################################");
-       $display("Step-5,Monitor: Checking the PLL:");
+       $display("Step-8,Monitor: Checking the PLL:");
        $display("###################################################");
-       test_id = 5;
+       test_id = 8;
        // Set PLL enable, no DCO mode ; Set PLL output divider to 0x03
        // Checking the expression
        //   Internal PLL delay = 1.168 + 0.012 * $itor(bcount)
@@ -361,18 +449,18 @@
        pll_clock_monitor(5);
        */
        if(test_fail == 1) begin
-          $display("ERROR: Step-5, Checking the PLL - FAILED");
+          $display("ERROR: Step-8, Checking the PLL - FAILED");
        end else begin
-          $display("STATUS: Step-5, Checking the PLL - PASSED");
+          $display("STATUS: Step-8, Checking the PLL - PASSED");
        end
        $display("##########################################################");
        
        
        $display("###################################################");
-       $display("Step-6,Monitor: PLL Monitor Clock output:");
+       $display("Step-9,Monitor: PLL Monitor Clock output:");
        $display("###################################################");
        $display("Monitor: CPU: CLOCK2/(2+3), USB: CLOCK2/(2+9), RTC: CLOCK2/(2+255), WBS:CLOCK2/(2+4)");
-       test_id = 6;
+       test_id = 9;
        test_step = 13;
        init();
        repeat (10) @(posedge clock);
@@ -384,34 +472,34 @@
        dbg_clk_monitor();
           
        if(test_fail == 1) begin
-          $display("ERROR: Step-6, PLL Monitor Clock output - FAILED");
+          $display("ERROR: Step-9, PLL Monitor Clock output - FAILED");
        end else begin
-          $display("STATUS: Step-6, PLL Monitor Clock output - PASSED");
+          $display("STATUS: Step-9, PLL Monitor Clock output - PASSED");
        end
       
        `endif
        $display("##########################################################");
-        $display("Step-7,Monitor: Checking the chip signature :");
+        $display("Step-10,Monitor: Checking the chip signature :");
         $display("###################################################");
-       test_id = 7;
+       test_id = 10;
         test_step = 14;
         // Remove Wb/PinMux Reset
         wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1);
 
-         wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,read_data,32'h8273_8343);
-         wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_1,read_data,32'h0709_2022);
-         wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_2,read_data,32'h0005_4000);
+         wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,read_data,CHIP_SIGNATURE);
+         wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_1,read_data,CHIP_RELEASE_DATE);
+         wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_2,read_data,CHIP_REVISION);
          if(test_fail == 1) begin
-            $display("ERROR: Step-7,Monitor: Checking the chip signature - FAILED");
+            $display("ERROR: Step-10,Monitor: Checking the chip signature - FAILED");
          end else begin
-            $display("STATUS: Step-7,Monitor: Checking the chip signature - PASSED");
+            $display("STATUS: Step-10,Monitor: Checking the chip signature - PASSED");
 
          $display("##########################################################");
 
           end
       end
       begin
-         repeat (30000) @(posedge clock);
+         repeat (500000) @(posedge clock);
    	       // $display("+1000 cycles");
          test_fail = 1;
       end
@@ -438,6 +526,19 @@
       $finish;
 end
 
+//---------------------------
+//  UART Agent integration
+// --------------------------
+
+assign uart_txd   = io_out[7];
+//assign io_in[6]  = uart_rxd ; // Assigned at top-level
+ 
+uart_agent tb_master_uart(
+	.mclk                (clock              ),
+	.txd                 (uart_rxd           ),
+	.rxd                 (uart_txd           )
+	);
+
 
 
 task clock_monitor2;
@@ -521,7 +622,7 @@
 begin
    //force clock_mon = u_top.u_wb_host.pll_clk_out[0];
    `ifdef GL
-      force clock_mon = u_top.u_wb_host.pll_clk_out[0];
+      force clock_mon = u_top.u_wb_host.int_pll_clock;
     `else
       force clock_mon = u_top.u_wb_host.int_pll_clock;
 
@@ -534,7 +635,11 @@
 task uartm_clock_monitor;
 input real exp_period;
 begin
+   `ifdef GL
+   force clock_mon = u_top.u_wb_host._09314_.Q;
+    `else
    force clock_mon = u_top.u_wb_host.u_uart2wb.u_core.line_clk_16x;
+    `endif
    check_clock_period("UART CLock",exp_period);
    release clock_mon;
 end
@@ -615,5 +720,6 @@
 
 
 
+`include "uart_master_tasks.sv"
 endmodule
 `default_nettype wire

diff --git a/verilog/dv/user_gpio/user_gpio_tb.v b/verilog/dv/user_gpio/user_gpio_tb.v
index 0efe8fe..1e313c4 100644
--- a/verilog/dv/user_gpio/user_gpio_tb.v
+++ b/verilog/dv/user_gpio/user_gpio_tb.v

@@ -245,6 +245,9 @@
         // Disable Multi func
         wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_MUTI_FUNC,'h000);
 
+		// config 1us based on system clock - 1000/25ns = 40 
+        wb_user_core_write(`ADDR_SPACE_TIMER+`TIMER_CFG_GLBL,39);
+
 		/************* GPIO As Output ******************/
 		$display("#####################################");
 		$display("Step-1: Testing GPIO As Output ");
@@ -255,15 +258,15 @@
 		cmp_gpio_output(8'h55,8'h55,8'h55,8'h55);
 
 		// Set the GPIO Output data: 0xAAAAAAAA
-                wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'hAAAAAAAA);
+        wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'hAAAAAAAA);
 		cmp_gpio_output(8'hAA,8'hAA,8'hAA,8'hAA);
 
 		// Set the GPIO Output data: 0x5A5A5A5A5A5A
-                wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'h5A5A5A5A);
+        wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'h5A5A5A5A);
 		cmp_gpio_output(8'h5A,8'h5A,8'h5A,8'h5A);
 		
 		// Set the GPIO Output data: 0xA5A5A5A5A5A5
-                wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'hA5A5A5A5);
+        wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'hA5A5A5A5);
 		cmp_gpio_output(8'hA5,8'hA5,8'hA5,8'hA5);
 
 		/************* GPIO As Input ******************/
@@ -324,9 +327,10 @@
 		// Drive GPIO with 0xA5
 		cmp_gpio_neg_intr(8'hA5,8'hA5,8'hA5,8'hA5);
 
-	        repeat (200) @(posedge clock);
+	     repeat (200) @(posedge clock);
+        check_fast_dglitch();
 
-
+        check_slow_dglitch();
 		repeat (100) @(posedge clock);
 			// $display("+1000 cycles");
 
@@ -420,6 +424,7 @@
     port_c_out  = port_c;
     port_d_out  = port_d;
 
+	repeat (200) @(posedge clock); // for de-glitch period
     wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
 end
 endtask
@@ -543,6 +548,143 @@
 end
 endtask
 
+// Check for slow De-Glitch (1us based sampling)
+task check_slow_dglitch;
+reg [7:0] port_a;
+reg [7:0] port_b;
+reg [7:0] port_c;
+reg [7:0] port_d;
+begin
+    $display("STATUS: Testing Slow De-Glitch Mode");
+    wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG1,32'h0);
+    port_a = 8'hAA;
+    port_b = 8'hAA;
+    port_c = 8'hAA;
+    port_d = 8'hAA;
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+
+	repeat (200) @(posedge clock); // for de-glitch period
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+
+    port_a_out = $random();
+    port_b_out = $random();
+    port_c_out = $random();
+    port_d_out = $random();
+	repeat (10) @(posedge clock); 
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (10) @(posedge clock); 
+    port_a_out = $random();
+    port_b_out = $random();
+    port_c_out = $random();
+    port_d_out = $random();
+	repeat (10) @(posedge clock); 
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (10) @(posedge clock); 
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+
+    port_a = 8'h11;
+    port_b = 8'h22;
+    port_c = 8'h33;
+    port_d = 8'h44;
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (200) @(posedge clock); 
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+    
+    port_a = 8'h55;
+    port_b = 8'h66;
+    port_c = 8'h77;
+    port_d = 8'h88;
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (200) @(posedge clock); 
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+end
+endtask
+
+
+// Check for slow De-Glitch (system clock based sampling)
+task check_fast_dglitch;
+reg [7:0] port_a;
+reg [7:0] port_b;
+reg [7:0] port_c;
+reg [7:0] port_d;
+begin
+    $display("STATUS: Testing Fast De-Glitch Mode");
+    wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG1,32'h100);
+    port_a = 8'h55;
+    port_b = 8'h55;
+    port_c = 8'h55;
+    port_d = 8'h55;
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+
+	repeat (10) @(posedge clock); // for de-glitch period
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+
+    port_a_out = $random();
+    port_b_out = $random();
+    port_c_out = $random();
+    port_d_out = $random();
+
+	repeat (2) @(posedge clock); 
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (2) @(posedge clock); 
+
+    port_a_out = $random();
+    port_b_out = $random();
+    port_c_out = $random();
+    port_d_out = $random();
+	repeat (2) @(posedge clock); 
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (2) @(posedge clock); 
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+
+    port_a = 8'h11;
+    port_b = 8'h22;
+    port_c = 8'h33;
+    port_d = 8'h44;
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (10) @(posedge clock); 
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+    
+    port_a = 8'h55;
+    port_b = 8'h66;
+    port_c = 8'h77;
+    port_d = 8'h88;
+    port_a_out  = port_a;
+    port_b_out  = port_b;
+    port_c_out  = port_c;
+    port_d_out  = port_d;
+	repeat (10) @(posedge clock); 
+    wb_user_core_read_check(`ADDR_SPACE_GPIO+`GPIO_CFG_IDATA,read_data,{port_d,port_c & 8'h7F,port_b,port_a & 8'h1F});
+
+end
+endtask
 
 endmodule
 `default_nettype wire

diff --git a/verilog/dv/user_i2cm/user_uart.c b/verilog/dv/user_i2cm/user_uart.c
deleted file mode 100644
index b86f23b..0000000
--- a/verilog/dv/user_i2cm/user_uart.c
+++ /dev/null

@@ -1,42 +0,0 @@
-//////////////////////////////////////////////////////////////////////////////
-// SPDX-FileCopyrightText: 2021, Dinesh Annayya
-// 
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// SPDX-License-Identifier: Apache-2.0
-// SPDX-FileContributor: Dinesh Annayya <dinesha@opencores.org>
-// //////////////////////////////////////////////////////////////////////////
-#define SC_SIM_OUTPORT (0xf0000000)
-#define uint32_t  long
-
-#define reg_mprj_uart_reg0 (*(volatile uint32_t*)0x30010000)
-#define reg_mprj_uart_reg1 (*(volatile uint32_t*)0x30010004)
-#define reg_mprj_uart_reg2 (*(volatile uint32_t*)0x30010008)
-#define reg_mprj_uart_reg3 (*(volatile uint32_t*)0x3001000C)
-#define reg_mprj_uart_reg4 (*(volatile uint32_t*)0x30010010)
-#define reg_mprj_uart_reg5 (*(volatile uint32_t*)0x30010014)
-#define reg_mprj_uart_reg6 (*(volatile uint32_t*)0x30010018)
-#define reg_mprj_uart_reg7 (*(volatile uint32_t*)0x3001001C)
-#define reg_mprj_uart_reg8 (*(volatile uint32_t*)0x30010020)
-
-int main()
-{
-
-    while(1) {
-       // Check UART RX fifo has data, if available loop back the data
-       if(reg_mprj_uart_reg8 != 0) { 
-	   reg_mprj_uart_reg5 = reg_mprj_uart_reg6;
-       }
-    }
-
-    return 0;
-}

diff --git a/verilog/dv/user_mcore_test2/user_mcore_test2.c b/verilog/dv/user_mcore_test2/user_mcore_test2.c
index c87ae26..5628795 100644
--- a/verilog/dv/user_mcore_test2/user_mcore_test2.c
+++ b/verilog/dv/user_mcore_test2/user_mcore_test2.c

@@ -74,6 +74,7 @@
        }
        // Core 0 thread
        if ( bthread_get_core_id() == 0 ) {
+         while((reg_glbl_mail_box >> (bthread_get_core_id() *8) & 0xFF) != 0x81); // wait for test start
          print_message("UART command-0 from core-0\n");
          print_message("UART command-1 from core-0\n");
          print_message("UART command-2 from core-0\n");
@@ -83,7 +84,7 @@
        // Core 1 thread
        if ( bthread_get_core_id() == 1 ) {
 
-         while((reg_glbl_mail_box & 0x1) == 0x0); // wait for test start
+         while((reg_glbl_mail_box >> (bthread_get_core_id() *8) & 0xFF) != 0x81); // wait for test start
          print_message("UART command-0 from core-1\n");
          print_message("UART command-1 from core-1\n");
          print_message("UART command-2 from core-1\n");
@@ -92,7 +93,7 @@
        }
        // Core 2 thread
        if ( bthread_get_core_id() == 2 ) {
-         while((reg_glbl_mail_box & 0x1) == 0x0); // wait for test start
+         while((reg_glbl_mail_box >> (bthread_get_core_id() *8) & 0xFF) != 0x81); // wait for test start
          print_message("UART command-0 from core-2\n");
          print_message("UART command-1 from core-2\n");
          print_message("UART command-2 from core-2\n");
@@ -101,7 +102,7 @@
        }
        // Core 3 thread
        if ( bthread_get_core_id() == 3 ) {
-         while((reg_glbl_mail_box & 0x1) == 0x0); // wait for test start
+         while((reg_glbl_mail_box >> (bthread_get_core_id() *8) & 0xFF) != 0x81); // wait for test start
          print_message("UART command-0 from core-3\n");
          print_message("UART command-1 from core-3\n");
          print_message("UART command-2 from core-3\n");

diff --git a/verilog/dv/user_mcore_test2/user_mcore_test2_tb.v b/verilog/dv/user_mcore_test2/user_mcore_test2_tb.v
index b064bdf..c6f6181 100644
--- a/verilog/dv/user_mcore_test2/user_mcore_test2_tb.v
+++ b/verilog/dv/user_mcore_test2/user_mcore_test2_tb.v

@@ -113,6 +113,7 @@
 	   	$dumpvars(1, `TB_TOP.u_top);
 	   	$dumpvars(0, `TB_TOP.u_top.u_riscv_top);
 	   	$dumpvars(0, `TB_TOP.u_top.u_uart_i2c_usb_spi);
+	   	$dumpvars(0, `TB_TOP.u_top.u_pinmux);
 	   end
        `endif
 
@@ -181,6 +182,7 @@
         tb_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, uart_stick_parity, uart_timeout, uart_divisor);
 
         wait_riscv_boot();
+        set_tb_ready();
 
 
 	    flag  = 0;

diff --git a/verilog/dv/user_pwm/user_pwm_tb.v b/verilog/dv/user_pwm/user_pwm_tb.v
index 8d7a20a..b8bce21 100644
--- a/verilog/dv/user_pwm/user_pwm_tb.v
+++ b/verilog/dv/user_pwm/user_pwm_tb.v

@@ -72,7 +72,7 @@
 
 
 module user_pwm_tb;
-parameter real CLK1_PERIOD  = 25;
+parameter real CLK1_PERIOD  = 20; // 50Mhz
 parameter real CLK2_PERIOD = 2.5;
 parameter real IPLL_PERIOD = 5.008;
 parameter real XTAL_PERIOD = 6;
@@ -81,14 +81,18 @@
 
 
 
-	reg [31:0] OneMsPeriod;
-    integer    test_step;
+	reg [31:0] pwm0_period;
+	reg [31:0] pwm1_period;
+	reg [31:0] pwm2_period;
+	reg [31:0] pwm3_period;
+	reg [31:0] pwm4_period;
+	reg [31:0] pwm5_period;
+
+    reg [15:0] check_sum;
+    integer    test_step,i;
     wire       clock_mon;
 
 
-	initial begin
-		OneMsPeriod = 1000;
-	end
 
 	`ifdef WFDUMP
 	   initial begin
@@ -117,26 +121,627 @@
 	    repeat (2) @(posedge clock);
 		#1;
 
-        // Remove the reset
-		// Remove WB and SPI/UART Reset, Keep CORE under Reset
-        //wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h01F);
-
-		// config 1us based on system clock - 1000/25ns = 40 
-        wb_user_core_write(`ADDR_SPACE_TIMER+`TIMER_CFG_GLBL,39);
-
 		test_fail = 0;
+        check_sum = 0;
 	    repeat (200) @(posedge clock);
         wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_BANK_SEL,'h1000); // Change the Bank Sel 1000
 
-	    $display("Step-1, PWM-0: 1ms/2 = 500Hz; PWM-1: 1ms/3; PWM-2: 1ms/4, PWM-3: 1ms/5, PWM-4: 1ms/6, PWM-5: 1ms/7");
+	    $display("########################################");
+	    $display("Step-1, PWM Square Waveform");
 	    test_step = 1;
-        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_CFG_PWM_0,'h0000_0000);
-        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_CFG_PWM_1,'h0000_0001);
-        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_CFG_PWM_2,'h0001_0001);
-        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_CFG_PWM_3,'h0001_0002);
-        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_CFG_PWM_4,'h0002_0002);
-        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_CFG_PWM_5,'h0002_0003);
-	    pwm_monitor(OneMsPeriod*2,OneMsPeriod*3,OneMsPeriod*4,OneMsPeriod*5,OneMsPeriod*6,OneMsPeriod*7);
+        pwm0_period = 20*256;
+        pwm1_period = 20*2*256;
+        pwm2_period = 20*4*256;
+        pwm3_period = 20*256; // pwm3 is connected to pwm0
+        pwm4_period = 20*2*256; // pwm4 is connected to pwm1
+        pwm5_period = 20*4*256; // pwm5 is conneted to pwm2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_8000); // No Scale 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_8001); // Scale 2^1 = 2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_8002); // Scale 2^2 = 4
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        // PWm3 to 5 Removed
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK3_CFG0,'h0000_8003); // Scale 2^3 = 8
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK3_CFG1,'h0000_00FF); // Period 0xFFFF
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK3_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK4_CFG0,'h0000_8004); // Scale 2^4 = 16
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK4_CFG1,'h0000_00FF); // Period 0xFFFF
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK4_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK5_CFG0,'h0000_8005); // Scale 2^5 = 32
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK5_CFG1,'h0000_00FF); // Period 0xFFFF
+        //wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK5_CFG2,'h0000_007F); // COMP0 = 0xFF
+        
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM + RUN
+	    pwm_monitor(pwm0_period,pwm1_period,pwm2_period,pwm3_period,pwm4_period,pwm5_period);
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-1, PWM Square Waveform - FAILED");
+       end else begin
+          $display("STATUS: Step-1, PWM Square Waveform - PASSED");
+       end
+	    $display("########################################");
+	    $display("Step-2, PWM One Shot");
+	    test_step = 2;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_8010); // No Scale 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_8011); // Scale 2^1 = 2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_8012); // Scale 2^2 = 4
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM + Run
+        read_data[15:8] = 8'h7;
+        fork
+        begin
+           while(read_data[15:8]  != 8'h00) begin // Wait for De-assertion on Run
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-2, PWM One Shot - FAILED");
+       end else begin
+          $display("STATUS: Step-2, PWM One Shot - PASSED");
+       end
+
+	    $display("########################################");
+	    $display("Step-3, PWM One Shot + Hold last data ");
+	    test_step = 3;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_8810); // No Scale 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_8811); // Scale 2^1 = 2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_8812); // Scale 2^2 = 4
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFFFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h0000_007F); // COMP0 = 0xFF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM + Run
+        read_data[15:8] = 8'h7;
+        fork
+        begin
+           while(read_data[15:8]  != 8'h00) begin // Wait for De-assertion on Run
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-3, PWM One Shot + Hold last data - FAILED");
+       end else begin
+          $display("STATUS: Step-3, PWM One Shot + Hold last data - PASSED");
+       end
+
+	    $display("########################################");
+	    $display("Step-4, PWM One Shot + mode:1 ");
+	    test_step = 4;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_9010); // No Scale + One Shot + Mode:1
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h0000_0000); // COMP2 = 0x00, COMP3= 0x00
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_9011); // Scale 2^1 = 2 + One Shot + Mode:1
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h0000_0000); // COMP2 = 0x00, COMP3= 0x00
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_9012); // Scale 2^2 = 4 + One Shot + Mode:1
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h0000_0000); // COMP2 = 0x00, COMP3= 0x00
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM + Run
+        read_data[15:8] = 8'h7;
+        fork
+        begin
+           while(read_data[15:8]  != 8'h00) begin // Wait for De-assertion on Run
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-4, PWM One Shot + mode:1 - FAILED");
+       end else begin
+          $display("STATUS: Step-4, PWM One Shot + mode:1 - PASSED");
+       end
+	    
+        $display("########################################");
+	    $display("Step-5, PWM One Shot + mode:2 ");
+	    test_step = 5;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_A010); // No Scale + One Shot + Mode:2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h0000_00AF); // COMP2 = 0xAF, COMP3= 0x00
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_A011); // Scale 2^1 = 2 + One Shot + Mode:2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h0000_00AF); // COMP2 = 0xAF, COMP3= 0x00
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_A012); // Scale 2^2 = 4 + One Shot + Mode:2
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h0000_00AF); // COMP2 = 0xAF, COMP3= 0x00
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM + Run
+        read_data[15:8] = 8'h7;
+        fork
+        begin
+           while(read_data[15:8]  != 8'h00) begin // Wait for De-assertion on Run
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-5, PWM One Shot + mode:2 - FAILED");
+       end else begin
+          $display("STATUS: Step-5, PWM One Shot + mode:2 - PASSED");
+       end
+        $display("########################################");
+	    $display("Step-6, PWM One Shot + mode:3 ");
+	    test_step = 6;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_B010); // No Scale + One Shot + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_B011); // Scale 2^1 = 2 + One Shot + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_B012); // Scale 2^2 = 4 + One Shot + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM+Run
+        read_data[15:8] = 8'h7;
+        fork
+        begin
+           while(read_data[15:8]  != 8'h00) begin // Wait for De-assertion on Run
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-6, PWM One Shot + mode:3 - FAILED");
+       end else begin
+          $display("STATUS: Step-6, PWM One Shot + mode:3 - PASSED");
+       end
+        $display("########################################");
+	    $display("Step-7, PWM Free Running + mode:3 ");
+	    test_step = 7;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_B000); // No Scale + Free Run + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_B001); // Scale 2^1 = 2 + Free Run + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_B002); // Scale 2^2 = 4 + Free Run + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM+Run
+        read_data = 8'h0;
+        fork
+        begin
+           while(read_data  != 8'h07) begin // Wait for Overflow Interrupt
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-7, PWM Free Run + mode:3 - FAILED");
+       end else begin
+          $display("STATUS: Step-7, PWM Free Run + mode:3 - PASSED");
+       end
+        $display("########################################");
+	    $display("Step-8, PWM Gpio: 0x3 Pos Edge , One Shot  + mode:3 ");
+	    test_step = 8;
+        // Pin-26   17   PC3/usb_dn/ADC3   digital_io[25]/analog_io[14]
+
+        force u_top.io_in[25] = 1'b0; // force PC3 to 0
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_B350); // No Scale + One Shot + GPIO: 0x3, Posedge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_B351); // Scale 2^1 = 2 + One Shot + GPIO: 0x3, Posedge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_B352); // Scale 2^2 = 4 + One Shot + GPIO: 0x3, Posedge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Interrupt Enable
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0007); //  PWM Enable + No Run (Expect GPIO generate Run)
+
+        // Generate 4 GPIO Edge Sequence
+        for(i=0; i < 4; i=i+1) begin
+           read_data = 8'h0;
+           // Generate Pos Egde
+           force u_top.io_in[25] = 1'b1; // force PC3 to 1
+           repeat (10) @(posedge clock);
+           force u_top.io_in[25] = 1'b0; // force PC3 to 0
+
+           fork
+           begin
+              while(read_data  != 8'h07) begin // Wait for Overflow Interrupt
+                  wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+                  check_sum = check_sum + pwm_wfm;
+                   repeat (100) @(posedge clock);
+              end
+           end
+           begin
+              while(1) begin
+                 check_sum = check_sum + pwm_wfm;
+                 repeat (100) @(posedge clock);
+             end
+           end
+           join_any
+           if(i < 3) begin
+                  wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+           end
+         end
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-8, PWM Gpio: 0x3 Pos Edge , One Shot  + mode:3 - FAILED");
+       end else begin
+          $display("STATUS: Step-8, PWM Gpio: 0x3 Pos Edge , One Shot  + mode:3 - PASSED");
+       end
+        $display("########################################");
+	    $display("Step-9, PWM Gpio: 0x3 Neg Edge , One Shot  + mode:3 ");
+	    test_step = 9;
+        // Pin-26   17   PC3/usb_dn/ADC3   digital_io[25]/analog_io[14]
+
+        force u_top.io_in[25] = 1'b1; // force PC3 to 1
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_B3D0); // No Scale + One Shot + GPIO: 0x3, Neg Edge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_B3D1); // Scale 2^1 = 2 + One Shot + GPIO: 0x3, Neg Edge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_B3D2); // Scale 2^2 = 4 + One Shot + GPIO: 0x3, Neg Edge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Interrupt Enable
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0007); //  PWM Enable + No Run (Expect GPIO generate Run)
+
+        repeat (100) @(posedge clock); // Wait for PWM enable command propagaton
+        // Generate 4 GPIO Edge Sequence
+        for(i=0; i < 4; i=i+1) begin
+           read_data = 8'h0;
+           // Generate Neg Egde
+           force u_top.io_in[25] = 1'b0; // force PC3 to 0
+           repeat (10) @(posedge clock);
+           force u_top.io_in[25] = 1'b1; // force PC3 to 1
+
+           fork
+           begin
+              while(read_data  != 8'h07) begin // Wait for Overflow Interrupt
+                  wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+                  check_sum = check_sum + pwm_wfm;
+                   repeat (100) @(posedge clock);
+              end
+           end
+           begin
+              while(1) begin
+                 check_sum = check_sum + pwm_wfm;
+                 repeat (100) @(posedge clock);
+             end
+           end
+           join_any
+           if(i < 3) begin
+                  wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+           end
+         end
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-9, PWM Gpio: 0x3 Neg Edge , One Shot  + mode:3 - FAILED");
+       end else begin
+          $display("STATUS: Step-9, PWM Gpio: 0x3 Neg Edge , One Shot  + mode:3 - PASSED");
+       end
+        $display("########################################");
+	    $display("Step-10, PWM Gpio: 0x3 Neg Edge , One Shot  + mode:3 + Waveform Invert ");
+	    test_step = 10;
+        // Pin-26   17   PC3/usb_dn/ADC3   digital_io[25]/analog_io[14]
+
+        force u_top.io_in[25] = 1'b1; // force PC3 to 1
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h0000_F3D0); // No Scale + One Shot + Clk Inv + GPIO: 0x3, Neg Edge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h0000_F3D1); // Scale 2^1 = 2 + One Shot + Clk Inv + GPIO: 0x3, Neg Edge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h0000_F3D2); // Scale 2^2 = 4 + One Shot + Clk Inv + GPIO: 0x3, Neg Edge + Mode:3
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_00FF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Interrupt Enable
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0007); //  PWM Enable + No Run (Expect GPIO generate Run)
+
+        repeat (100) @(posedge clock); // Wait for PWM enable command propagaton
+        // Generate 4 GPIO Edge Sequence
+        for(i=0; i < 4; i=i+1) begin
+           read_data = 8'h0;
+           // Generate Neg Egde
+           force u_top.io_in[25] = 1'b0; // force PC3 to 0
+           repeat (10) @(posedge clock);
+           force u_top.io_in[25] = 1'b1; // force PC3 to 1
+
+           fork
+           begin
+              while(read_data  != 8'h07) begin // Wait for Overflow Interrupt
+                  wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+                  check_sum = check_sum + pwm_wfm;
+                   repeat (100) @(posedge clock);
+              end
+           end
+           begin
+              while(1) begin
+                 check_sum = check_sum + pwm_wfm;
+                 repeat (100) @(posedge clock);
+             end
+           end
+           join_any
+           if(i < 3) begin
+                  wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data);
+           end
+         end
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-9, PWM Gpio: 0x3 Neg Edge , One Shot  + mode:3 - FAILED");
+       end else begin
+          $display("STATUS: Step-9, PWM Gpio: 0x3 Neg Edge , One Shot  + mode:3 - PASSED");
+       end
+        $display("########################################");
+	    $display("Step-10, PWM One Shot + mode:3 + Comparator Center ");
+	    test_step = 10;
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0007_0000); // Disable Cfg Update
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG0,'h000F_B010); // No Scale + One Shot + Mode:3 + Comparator Center
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG1,'h0000_FFFF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK0_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG0,'h000F_B010); // No Scale + One Shot + Mode:3 + Comparator Center
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG1,'h0000_FFFF); // Period 0xFF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG2,'h008F_006F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK1_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG0,'h000F_B010); // No Scale + One Shot + Mode:3 + Comparator Center
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG1,'h0000_FFFF); // Period 0x80FF
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG2,'h008F_0F6F); // COMP0 = 0x6F, COMP1= 0x8F
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_BLK2_CFG3,'h00CF_00AF); // COMP2 = 0xAF, COMP3= 0xCF
+
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_MASK,'h0000_0007); // Enable PWM Interrupt
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Remove config update block 
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0707); // Enable PWM+Run
+        read_data[15:8] = 8'h7;
+        fork
+        begin
+           while(read_data[15:8]  != 8'h00) begin // Wait for De-assertion on Run
+               wb_user_core_read(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,read_data);
+               check_sum = check_sum + pwm_wfm;
+                repeat (100) @(posedge clock);
+           end
+        end
+        begin
+           while(1) begin
+              check_sum = check_sum + pwm_wfm;
+              repeat (100) @(posedge clock);
+          end
+        end
+        join_any
+
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0007); // Check Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_CFG0,'h0000_0000); // Disable PWM
+        wb_user_core_write(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,'h0000_0007); // Clear Interrupt
+        wb_user_core_read_check(`ADDR_SPACE_PWM+`PWM_GLBL_INTR_STAT,read_data,'h0000_0000); // Check Interrupt Status
+        wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,'h0000_0020); // Check Global Interrupt Status
+        wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_INTR_STAT,read_data,'h0000_0000); // Check Global Interrupt Status
+
+       if(test_fail == 1) begin
+          $display("ERROR: Step-10, PWM One Shot + mode:3 + Comparator Center - FAILED");
+       end else begin
+          $display("STATUS: Step-10, PWM One Shot + mode:3 + Comparator Center - PASSED");
+       end
+       $display("Check Sum: %x ",check_sum);
+       if(check_sum != 16'hc638) test_fail = 1;
 
 		repeat (100) @(posedge clock);
 			// $display("+1000 cycles");
@@ -158,14 +763,19 @@
 	        $finish;
 	end
 
+wire [5:0] pwm_wfm = {io_out[19],
+                      io_out[18],
+                      io_out[17],
+                      io_out[14],
+                      io_out[13],
+                      io_out[9]};
 
-wire pwm0 = io_out[9];
-wire pwm1 = io_out[13];
-wire pwm2 = io_out[14];
-wire pwm3 = io_out[17];
-wire pwm4 = io_out[18];
-wire pwm5 = io_out[19];
-
+wire pwm0 = pwm_wfm[0];
+wire pwm1 = pwm_wfm[1];
+wire pwm2 = pwm_wfm[2];
+wire pwm3 = pwm_wfm[3];
+wire pwm4 = pwm_wfm[4];
+wire pwm5 = pwm_wfm[5];
 
 task pwm_monitor;
 input [31:0] pwm0_period;
@@ -217,12 +827,12 @@
    repeat(2) @(posedge clock_mon);
    next_t  = $realtime;
    periodd = (next_t-prev_t)/2;
-   periodd = (periodd)/1e3;
+   periodd = (periodd);
    if(clk_period != periodd) begin
-       $display("STATUS: FAIL => %s Exp Period: %d ms Rxd: %d ms",clk_name,clk_period,periodd);
+       $display("STATUS: FAIL => %s Exp Period: %d ns Rxd: %d ns",clk_name,clk_period,periodd);
        test_fail = 1;
    end else begin
-       $display("STATUS: PASS => %s  Period: %d ms ",clk_name,clk_period);
+       $display("STATUS: PASS => %s  Period: %d ns ",clk_name,clk_period);
    end
 end
 endtask

diff --git a/verilog/dv/user_qspi/user_risc_boot.c b/verilog/dv/user_qspi/user_risc_boot.c
deleted file mode 100644
index 83fb41b..0000000
--- a/verilog/dv/user_qspi/user_risc_boot.c
+++ /dev/null

@@ -1,53 +0,0 @@
-//////////////////////////////////////////////////////////////////////////////
-// SPDX-FileCopyrightText: 2021, Dinesh Annayya
-// 
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// SPDX-License-Identifier: Apache-2.0
-// SPDX-FileContributor: Dinesh Annayya <dinesha@opencores.org>
-// //////////////////////////////////////////////////////////////////////////
-#define SC_SIM_OUTPORT (0xf0000000)
-#define uint32_t  long
-
-#define reg_mprj_globl_reg0  (*(volatile uint32_t*)0x10020000) // Chip ID
-#define reg_mprj_globl_reg1  (*(volatile uint32_t*)0x10020004) // Global Config-0
-#define reg_mprj_globl_reg2  (*(volatile uint32_t*)0x10020008) // Global Config-1
-#define reg_mprj_globl_reg3  (*(volatile uint32_t*)0x1002000C) // Global Interrupt Mask
-#define reg_mprj_globl_reg4  (*(volatile uint32_t*)0x10020010) // Global Interrupt
-#define reg_mprj_globl_reg5  (*(volatile uint32_t*)0x10020014) // Multi functional sel
-#define reg_mprj_globl_soft0  (*(volatile uint32_t*)0x10020018) // Sof Register-0
-#define reg_mprj_globl_soft1  (*(volatile uint32_t*)0x1002001C) // Sof Register-1
-#define reg_mprj_globl_soft2  (*(volatile uint32_t*)0x10020020) // Sof Register-2
-#define reg_mprj_globl_soft3  (*(volatile uint32_t*)0x10020024) // Sof Register-3
-#define reg_mprj_globl_soft4 (*(volatile uint32_t*)0x10020028) // Sof Register-4
-#define reg_mprj_globl_soft5 (*(volatile uint32_t*)0x1002002C) // Sof Register-5
-
-int main()
-{
-
-    //volatile long *out_ptr = (volatile long*)SC_SIM_OUTPORT;
-    //*out_ptr = 0xAABBCCDD;
-    //*out_ptr = 0xBBCCDDEE;
-    //*out_ptr = 0xCCDDEEFF;
-    //*out_ptr = 0xDDEEFF00;
-
-    // Write software Write & Read Register
-    reg_mprj_globl_soft0  = 0x11223344; 
-    reg_mprj_globl_soft1  = 0x22334455; 
-    reg_mprj_globl_soft2  = 0x33445566; 
-    reg_mprj_globl_soft3  = 0x44556677; 
-    reg_mprj_globl_soft4 = 0x55667788; 
-    reg_mprj_globl_soft5 = 0x66778899; 
-
-    while(1) {}
-    return 0;
-}

diff --git a/verilog/dv/user_sram_exec/user_sram_exec.c b/verilog/dv/user_sram_exec/user_sram_exec.c
index b4a1db5..0f0fa12 100644
--- a/verilog/dv/user_sram_exec/user_sram_exec.c
+++ b/verilog/dv/user_sram_exec/user_sram_exec.c

@@ -64,5 +64,6 @@
     reg_glbl_soft_reg_5 = 0x66778899; // Sig-5
 
     // Signal end of test
+   reg_glbl_mail_box = 0xff << (bthread_get_core_id() * 8); // Start of Main 
 }
 

diff --git a/verilog/dv/user_sram_exec/user_sram_exec_tb.v b/verilog/dv/user_sram_exec/user_sram_exec_tb.v
index 277dae2..6e2bcf4 100644
--- a/verilog/dv/user_sram_exec/user_sram_exec_tb.v
+++ b/verilog/dv/user_sram_exec/user_sram_exec_tb.v

@@ -118,6 +118,7 @@
 
 
         wait_riscv_boot();
+        wait_riscv_exit();
 
 		$display("Monitor: Reading Back the expected value");
 		// User RISC core expect to write these value in global

diff --git a/verilog/dv/user_uart_master/user_uart_master_tb.v b/verilog/dv/user_uart_master/user_uart_master_tb.v
index 33277cb..25cbfd3 100644
--- a/verilog/dv/user_uart_master/user_uart_master_tb.v
+++ b/verilog/dv/user_uart_master/user_uart_master_tb.v

@@ -116,7 +116,7 @@
 initial
 begin
    strap_in = 0;
-   strap_in[`PSTRAP_UARTM_CFG] = 2'b11; // uart master config control - load from LA
+   strap_in[`PSTRAP_UARTM_CFG] = 2'b00; // uart master config control - load from LA
    apply_strap(strap_in);
 
    uart_data_bit           = 2'b11;
@@ -144,6 +144,8 @@
    tb_master_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, 
 	                          uart_stick_parity, uart_timeout, uart_divisor);
 
+
+    tb_master_uart.write_char('\n'); // for uart baud auto detect purpose
    //$write ("\n(%t)Response:\n",$time);
    flag = 0;
    while(flag == 0)

diff --git a/verilog/dv/wb_port/wb_port_tb.v b/verilog/dv/wb_port/wb_port_tb.v
index 271e092..d91518f 100644
--- a/verilog/dv/wb_port/wb_port_tb.v
+++ b/verilog/dv/wb_port/wb_port_tb.v

@@ -49,7 +49,7 @@
 	initial begin
 		$dumpfile("simx.vcd");
 		$dumpvars(1, wb_port_tb);
-		$dumpvars(1, wb_port_tb.u_top);
+		$dumpvars(2, wb_port_tb.u_top);
 		$dumpvars(1, wb_port_tb.u_top.mgmt_buffers);
 		$dumpvars(1, wb_port_tb.u_top.housekeeping);
 		$dumpvars(1, wb_port_tb.u_top.pll);

diff --git a/verilog/includes/includes.gl.caravel_user_project b/verilog/includes/includes.gl.caravel_user_project
index 5a964c4..aa79249 100644
--- a/verilog/includes/includes.gl.caravel_user_project
+++ b/verilog/includes/includes.gl.caravel_user_project

@@ -4,9 +4,9 @@
 +incdir+$(USER_PROJECT_VERILOG)/rtl/i2cm/src/includes
 +incdir+$(USER_PROJECT_VERILOG)/rtl/usb1_host/src/includes
 +incdir+$(USER_PROJECT_VERILOG)/rtl/yifive/ycr2c/src/includes
-+incdir+$(USER_PROJECT_VERILOG)/dv/bfm
-+incdir+$(USER_PROJECT_VERILOG)/dv/model
-+incdir+$(USER_PROJECT_VERILOG)/dv/agents
++incdir+$(USER_PROJECT_VERILOG)/dv/common/bfm
++incdir+$(USER_PROJECT_VERILOG)/dv/common/model
++incdir+$(USER_PROJECT_VERILOG)/dv/common/agents
 $(USER_PROJECT_VERILOG)/rtl/user_reg_map.v
 
 ##################################################

diff --git a/verilog/includes/includes.rtl.caravel_user_project b/verilog/includes/includes.rtl.caravel_user_project
index d7b2840..e9e4e4e 100644
--- a/verilog/includes/includes.rtl.caravel_user_project
+++ b/verilog/includes/includes.rtl.caravel_user_project

@@ -10,21 +10,25 @@
 -v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/pinmux_top.sv
 -v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/pinmux.sv
 -v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/glbl_reg.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/gpio_top.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/gpio_intr.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/gpio_reg.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/pwm_top.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/pwm_reg.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/pwm.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/timer_top.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/timer_reg.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/timer.sv
 -v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/semaphore_reg.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/ws281x_top.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/ws281x_driver.sv
--v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/ws281x_reg.sv
 -v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/strap_ctrl.sv
 -v $(USER_PROJECT_VERILOG)/rtl/pinmux/src/glbl_rst_reg.sv
+-v $(USER_PROJECT_VERILOG)/rtl/gpio/src/gpio_top.sv
+-v $(USER_PROJECT_VERILOG)/rtl/gpio/src/gpio_dglicth.sv
+-v $(USER_PROJECT_VERILOG)/rtl/gpio/src/gpio_intr.sv
+-v $(USER_PROJECT_VERILOG)/rtl/gpio/src/gpio_reg.sv
+-v $(USER_PROJECT_VERILOG)/rtl/pwm/src/pwm_top.sv
+-v $(USER_PROJECT_VERILOG)/rtl/pwm/src/pwm_glbl_reg.sv
+-v $(USER_PROJECT_VERILOG)/rtl/pwm/src/pwm_blk_reg.sv
+-v $(USER_PROJECT_VERILOG)/rtl/pwm/src/pwm_cfg_dglitch.sv
+-v $(USER_PROJECT_VERILOG)/rtl/pwm/src/pwm_core.sv
+-v $(USER_PROJECT_VERILOG)/rtl/pwm/src/pwm.sv
+-v $(USER_PROJECT_VERILOG)/rtl/timer/src/timer_top.sv
+-v $(USER_PROJECT_VERILOG)/rtl/timer/src/timer_reg.sv
+-v $(USER_PROJECT_VERILOG)/rtl/timer/src/timer.sv
+-v $(USER_PROJECT_VERILOG)/rtl/ws281x/src/ws281x_top.sv
+-v $(USER_PROJECT_VERILOG)/rtl/ws281x/src/ws281x_driver.sv
+-v $(USER_PROJECT_VERILOG)/rtl/ws281x/src/ws281x_reg.sv
 -v $(USER_PROJECT_VERILOG)/rtl/lib/pulse_gen_type1.sv
 -v $(USER_PROJECT_VERILOG)/rtl/lib/pulse_gen_type2.sv
 -v $(USER_PROJECT_VERILOG)/rtl/lib/clk_div8.v
@@ -130,6 +134,7 @@
 -v $(USER_PROJECT_VERILOG)/rtl/uart2wb/src/uart2wb.sv 
 -v $(USER_PROJECT_VERILOG)/rtl/uart2wb/src/uart2_core.sv 
 -v $(USER_PROJECT_VERILOG)/rtl/uart2wb/src/uart_msg_handler.v 
+-v $(USER_PROJECT_VERILOG)/rtl/uart2wb/src/uart_auto_det.sv
 -v $(USER_PROJECT_VERILOG)/rtl/lib/async_reg_bus.sv
 -v $(USER_PROJECT_VERILOG)/rtl/user_project_wrapper.v
 -v $(USER_PROJECT_VERILOG)/rtl/lib/clk_skew_adjust.gv

diff --git a/verilog/rtl/digital_pll/src/ring_osc2x13.v b/verilog/rtl/digital_pll/src/ring_osc2x13.v
index f20110e..ce76830 100644
--- a/verilog/rtl/digital_pll/src/ring_osc2x13.v
+++ b/verilog/rtl/digital_pll/src/ring_osc2x13.v

@@ -42,7 +42,7 @@
 	.Z(d1)
     );
 
-    sky130_fd_sc_hd__einvn_4 delayenb1 (
+    sky130_fd_sc_hd__einvn_2 delayenb1 (
 	.A(ts),
 	.TE_B(trim[1]),
 	.Z(d1)
@@ -86,7 +86,7 @@
 	.Z(d1)
     );
 
-    sky130_fd_sc_hd__einvn_4 delayenb1 (
+    sky130_fd_sc_hd__einvn_2 delayenb1 (
 	.A(in),
 	.TE_B(trim[1]),
 	.Z(d1)

diff --git a/verilog/rtl/gpio/src/gpio_dglicth.sv b/verilog/rtl/gpio/src/gpio_dglicth.sv
new file mode 100644
index 0000000..e843057
--- /dev/null
+++ b/verilog/rtl/gpio/src/gpio_dglicth.sv

@@ -0,0 +1,72 @@
+//////////////////////////////////////////////////////////////////////////////
+// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileContributor: Created by Dinesh Annayya <dinesha@opencores.org>
+//
+//////////////////////////////////////////////////////////////////////
+////                                                              ////
+////  GPIO De-Glitch                                              ////
+////                                                              ////
+////  This file is part of the riscduino cores project            ////
+////  https://github.com/dineshannayya/riscduino.git              ////
+////                                                              ////
+////  Description                                                 ////
+////                                                              ////
+////  To Do:                                                      ////
+////    nothing                                                   ////
+////                                                              ////
+////  Author(s):                                                  ////
+////      - Dinesh Annayya, dinesh.annayya@gmail.com              ////
+////                                                              ////
+////  Revision :                                                  ////
+////    0.1 - 13th Sept 2022, Dinesh A                            ////
+////          initial version                                     ////
+//////////////////////////////////////////////////////////////////////
+//
+
+
+module gpio_dglitch (
+                  input logic    reset_n,
+                  input logic    mclk,
+                  input logic    pulse_1us,
+                  input logic    cfg_mode, // 0 - 1 us, 1 - every system clock
+                  input logic    gpio_in,
+                  output logic   gpio_out
+                     );
+
+logic [3:0] gpio_ss;
+logic       gpio_reg;
+
+// Pass the input data , if there is no transition, else send old data
+assign gpio_out = ((gpio_ss[3] == gpio_ss[2]) && (gpio_ss[2] == gpio_ss[1])) ? gpio_ss[3] : gpio_reg;
+
+
+always@(negedge reset_n or posedge mclk)
+begin
+   if(reset_n == 1'b0) begin
+      gpio_ss  <= 'h0;
+      gpio_reg <= 'h0;
+   end else begin
+       gpio_reg <= gpio_out;
+       if(cfg_mode == 1'b0) begin // De-glitch sampling at 1us pulse
+           if(pulse_1us)  gpio_ss <= {gpio_ss[2:0],gpio_in};
+       end else begin // De-glitch on on every system clock
+           gpio_ss <= {gpio_ss[2:0],gpio_in};
+       end
+   end
+end
+
+
+endmodule

diff --git a/verilog/rtl/pinmux/src/gpio_intr.sv b/verilog/rtl/gpio/src/gpio_intr.sv
similarity index 100%
rename from verilog/rtl/pinmux/src/gpio_intr.sv
rename to verilog/rtl/gpio/src/gpio_intr.sv


diff --git a/verilog/rtl/pinmux/src/gpio_reg.sv b/verilog/rtl/gpio/src/gpio_reg.sv
similarity index 96%
rename from verilog/rtl/pinmux/src/gpio_reg.sv
rename to verilog/rtl/gpio/src/gpio_reg.sv
index 10b90bd..a8528eb 100644
--- a/verilog/rtl/pinmux/src/gpio_reg.sv
+++ b/verilog/rtl/gpio/src/gpio_reg.sv

@@ -28,7 +28,7 @@
 ////    nothing                                                   ////
 ////                                                              ////
 ////  Author(s):                                                  ////
-////      - Dinesh Annayya, dinesha@opencores.org                 ////
+////      - Dinesh Annayya, dinesh.annayya@gmail.com              ////
 ////                                                              ////
 ////  Revision :                                                  ////
 ////    0.1 - 15th Aug 2022, Dinesh A                             ////
@@ -168,26 +168,20 @@
 //-----------------------------------------------------------------------
 // Logic for gpio_data_in 
 //-----------------------------------------------------------------------
-logic [31:0] gpio_in_data_s;
-logic [31:0] gpio_in_data_ss;
 // Double Sync the gpio pin data for edge detection
 always @ (posedge mclk or negedge h_reset_n)
 begin 
   if (h_reset_n == 1'b0) begin
     reg_2  <= 'h0 ;
-    gpio_in_data_s  <= 32'd0;
-    gpio_in_data_ss <= 32'd0;
   end
   else begin
-    gpio_in_data_s   <= gpio_in_data;
-    gpio_in_data_ss <= gpio_in_data_s;
-    reg_2           <= gpio_in_data_ss;
+    reg_2  <= gpio_in_data;
   end
 end
 
 
-assign cfg_gpio_data_in = reg_2[31:0]; // to be used for edge interrupt detect
-assign gpio_prev_indata = gpio_in_data_ss;
+assign cfg_gpio_data_in = gpio_in_data; // to be used for edge interrupt detect
+assign gpio_prev_indata = reg_2[31:0];
 
 //-----------------------------------------------------------------------
 // Logic for cfg_gpio_out_data 

diff --git a/verilog/rtl/pinmux/src/gpio_top.sv b/verilog/rtl/gpio/src/gpio_top.sv
similarity index 84%
rename from verilog/rtl/pinmux/src/gpio_top.sv
rename to verilog/rtl/gpio/src/gpio_top.sv
index 097623f..57a0092 100644
--- a/verilog/rtl/pinmux/src/gpio_top.sv
+++ b/verilog/rtl/gpio/src/gpio_top.sv

@@ -41,6 +41,8 @@
                        // Inputs
 		               input logic           mclk,
                        input logic           h_reset_n,
+                       input logic           cfg_gpio_dgmode, // 0 - De-glitch sampling on 1us
+                       input logic           pulse_1us,
 
 		               // Reg Bus Interface Signal
                        input logic           reg_cs,
@@ -58,6 +60,8 @@
                        input   logic [31:0]  pad_gpio_in,
                        output  logic [31:0]  pad_gpio_out,
 
+                       output  logic [7:0]   pwm_gpio_in,
+
                        output  logic [31:0]  gpio_intr
 
                 ); 
@@ -70,6 +74,35 @@
 logic  [31:0]  cfg_gpio_negedge_int_sel ;// select negedge interrupt
 logic  [31:00] cfg_gpio_data_in         ;
 logic [31:0]   gpio_int_event           ;
+logic [31:0]   gpio_dsync               ;
+
+
+//------------------------------------------
+// Assign GPIO PORT-C as PWM GPIO
+//----------------------------------------
+
+assign  pwm_gpio_in = gpio_dsync[23:16];
+
+//--------------------------------------
+// GPIO Ge-glitch logic
+//--------------------------------------
+genvar port;
+generate
+for (port = 0; $unsigned(port) < 32; port=port+1) begin : u_bit
+
+gpio_dglitch u_dglitch(
+                  .reset_n    (h_reset_n         ),
+                  .mclk       (mclk              ),
+                  .pulse_1us  (pulse_1us         ),
+                  .cfg_mode   (cfg_gpio_dgmode   ), 
+                  .gpio_in    (pad_gpio_in[port] ),
+                  .gpio_out   (gpio_dsync[port])
+                 );
+
+end
+endgenerate // dglitch
+
+
 
 
 gpio_reg  u_reg (
@@ -88,7 +121,7 @@
                .reg_ack                      (reg_ack                 ),
 
             // GPIO input pins
-               .gpio_in_data                 (pad_gpio_in             ),
+               .gpio_in_data                 (gpio_dsync              ),
                .gpio_prev_indata             (gpio_prev_indata        ),
                .gpio_int_event               (gpio_int_event          ),
 

diff --git a/verilog/rtl/lib/reset_sync.sv b/verilog/rtl/lib/reset_sync.sv
index d96c719..5b5c7fa 100644
--- a/verilog/rtl/lib/reset_sync.sv
+++ b/verilog/rtl/lib/reset_sync.sv

@@ -81,7 +81,6 @@
 reg      in_data_s  ; // One   Cycle sync 
 reg      in_data_2s ; // two   Cycle sync 
 
-assign srst_n =  (scan_mode) ? arst_n : in_data_2s;
 
 always @(negedge arst_n  or posedge dclk)
 begin
@@ -96,6 +95,7 @@
       in_data_2s <= in_data_s;
    end
 end
-
+//assign srst_n =  (scan_mode) ? arst_n : in_data_2s;
+ctech_mux2x1 u_buf  (.A0(in_data_2s), .A1(arst_n), .S(scan_mode), .X(srst_n));
 
 endmodule

diff --git a/verilog/rtl/pinmux/src/1 b/verilog/rtl/pinmux/src/1
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/verilog/rtl/pinmux/src/1


diff --git a/verilog/rtl/pinmux/src/glbl_reg.sv b/verilog/rtl/pinmux/src/glbl_reg.sv
index 58dc3d2..25514f1 100644
--- a/verilog/rtl/pinmux/src/glbl_reg.sv
+++ b/verilog/rtl/pinmux/src/glbl_reg.sv

@@ -93,6 +93,7 @@
                        output logic [2:0]      user_irq               ,
 		               input  logic            usb_intr               ,
 		               input  logic            i2cm_intr              ,
+		               input  logic            pwm_intr              ,
 
 		               output logic [15:0]     cfg_riscv_ctrl         ,
                        output  logic [31:0]    cfg_multi_func_sel     ,// multifunction pins
@@ -108,7 +109,8 @@
                        output logic[25:0]    cfg_dc_trim        , // External trim for DCO mode
                        output logic          pll_ref_clk        , // Input oscillator to match
 
-                       output logic          dbg_clk_mon
+                       output logic          dbg_clk_mon        ,
+                       output logic          cfg_gpio_dgmode    
    ); 
 
 
@@ -134,9 +136,6 @@
 logic [31:0]   reg_6;  // 
 logic [31:0]   reg_7;  // 
 logic [31:0]   reg_8;  // 
-logic [31:0]   reg_9;  // 
-logic [31:0]   reg_10; // 
-logic [31:0]   reg_11; // 
 logic [31:0]   reg_12; // Latched Strap 
 logic [31:0]   reg_13; // Strap Sticky
 logic [31:0]   reg_14; // System Strap
@@ -150,14 +149,6 @@
 logic [31:0]   reg_21;  // Software Reg-5  - s_reset
 logic [31:0]   reg_22;  // Software Reg-6  - s_reset
 logic [31:0]   reg_23;  // Software Reg-7  - s_reset
-logic [31:0]   reg_24;  // Reserved
-logic [31:0]   reg_25;  // Reserved
-logic [31:0]   reg_26;  // Reserved
-logic [31:0]   reg_27;  // Reserved
-logic [31:0]   reg_28;  // Reserved
-logic [31:0]   reg_29;  // Reserved
-logic [31:0]   reg_30;  // Reserved
-logic [31:0]   reg_31;  // Reserved
 
 logic           cs_int;
 logic [3:0]     cfg_mon_sel;
@@ -344,10 +335,11 @@
 	      .data_out   (reg_2         )
 	      );
 
-assign  cfg_mon_sel   = reg_2[7:4];
-assign  soft_irq      = reg_2[3]; 
-assign  user_irq      = reg_2[2:0]; 
-assign cfg_riscv_ctrl = reg_2[31:16];
+assign  cfg_gpio_dgmode   = reg_2[8]; // gpio de-glitch mode selection
+assign  cfg_mon_sel       = reg_2[7:4];
+assign  soft_irq          = reg_2[3]; 
+assign  user_irq          = reg_2[2:0]; 
+assign cfg_riscv_ctrl     = reg_2[31:16];
 
 //-----------------------------------------------------------------------
 //   reg-3 : Global Interrupt Mask
@@ -371,7 +363,7 @@
 assign  irq_lines     = reg_3[31:0] & reg_4[31:0]; 
 
 // In Arduino GPIO[7:0] is corresponds to PORT-A which is not available for user access
-wire [31:0] hware_intr_req = {gpio_intr[31:8], 3'b0,usb_intr, i2cm_intr,timer_intr[2:0]};
+wire [31:0] hware_intr_req = {gpio_intr[31:8], 2'b0,pwm_intr,usb_intr, i2cm_intr,timer_intr[2:0]};
 
 generic_intr_stat_reg #(.WD(32),
 	                .RESET_DEFAULT(0)) u_reg4 (
@@ -653,9 +645,9 @@
     5'b00110 : reg_out [31:0] = reg_6  ;    
     5'b00111 : reg_out [31:0] = reg_7  ;    
     5'b01000 : reg_out [31:0] = reg_8  ;    
-    5'b01001 : reg_out [31:0] = reg_9  ;    
-    5'b01010 : reg_out [31:0] = reg_10 ;   
-    5'b01011 : reg_out [31:0] = reg_11 ;   
+    5'b01001 : reg_out [31:0] = 'h0  ;    
+    5'b01010 : reg_out [31:0] = 'h0 ;   
+    5'b01011 : reg_out [31:0] = 'h0 ;   
     5'b01100 : reg_out [31:0] = reg_12 ;   
     5'b01101 : reg_out [31:0] = reg_13 ;   
     5'b01110 : reg_out [31:0] = reg_14 ;   
@@ -668,14 +660,14 @@
     5'b10101 : reg_out [31:0] = reg_21  ;    
     5'b10110 : reg_out [31:0] = reg_22  ;    
     5'b10111 : reg_out [31:0] = reg_23  ;    
-    5'b11000 : reg_out [31:0] = reg_24  ;    
-    5'b11001 : reg_out [31:0] = reg_25  ;    
-    5'b11010 : reg_out [31:0] = reg_26 ;   
-    5'b11011 : reg_out [31:0] = reg_27 ;   
-    5'b11100 : reg_out [31:0] = reg_28 ;   
-    5'b11101 : reg_out [31:0] = reg_29 ;   
-    5'b11110 : reg_out [31:0] = reg_30 ;   
-    5'b11111 : reg_out [31:0] = reg_31 ;   
+    5'b11000 : reg_out [31:0] = 'h0  ;    
+    5'b11001 : reg_out [31:0] = 'h0  ;    
+    5'b11010 : reg_out [31:0] = 'h0 ;   
+    5'b11011 : reg_out [31:0] = 'h0 ;   
+    5'b11100 : reg_out [31:0] = 'h0 ;   
+    5'b11101 : reg_out [31:0] = 'h0 ;   
+    5'b11110 : reg_out [31:0] = 'h0 ;   
+    5'b11111 : reg_out [31:0] = 'h0 ;   
     default  : reg_out [31:0] = 32'h0;
   endcase
 end
@@ -755,7 +747,7 @@
    );
 
 // Debug clock monitor optin
-assign dbg_clk_ref       = (cfg_mon_sel == 4'b000) ? user_clock1    :
+wire  dbg_clk_ref       = (cfg_mon_sel == 4'b000) ? user_clock1    :
 	                       (cfg_mon_sel == 4'b001) ? user_clock2    :
 	                       (cfg_mon_sel == 4'b010) ? xtal_clk     :
 	                       (cfg_mon_sel == 4'b011) ? int_pll_clock: 
@@ -765,6 +757,7 @@
 	                       (cfg_mon_sel == 4'b111) ? rtc_clk      : 1'b0;
 
 //  DIv16 to debug monitor purpose
+logic dbg_clk_div16;
 
 clk_ctl #(3) u_dbgclk (
    // Outputs

diff --git a/verilog/rtl/pinmux/src/pinmux_top.sv b/verilog/rtl/pinmux/src/pinmux_top.sv
index c9de5f1..491a4a0 100755
--- a/verilog/rtl/pinmux/src/pinmux_top.sv
+++ b/verilog/rtl/pinmux/src/pinmux_top.sv

@@ -206,11 +206,13 @@
 logic         s_reset_ssn;  // Sync Reset
 logic         p_reset_ssn;  // Sync Reset
 logic [15:0]  pad_strap_in;
-logic           dbg_clk_mon;
-   
+logic         dbg_clk_mon;
+logic         cfg_gpio_dgmode; // gpio de-glitch mode
+logic         pwm_intr;   
 /* clock pulse */
 //********************************************************
 logic           pulse_1ms               ; // 1 Milli Second Pulse for waveform Generator
+logic           pulse_1us               ; // 1 Micro Second Pulse for waveform Generator
 logic [5:0]     cfg_pwm_enb             ;
 
 
@@ -282,6 +284,8 @@
 logic [31:0]  reg_ws_rdata;
 logic         reg_ws_ack;
 
+logic [7:0]   pwm_gpio_in;
+
 assign reg_rdata = (reg_addr[9:7] == `SEL_GLBL)  ? {reg_glbl_rdata} : 
 	               (reg_addr[9:7] == `SEL_GPIO)  ? {reg_gpio_rdata} :
 	               (reg_addr[9:7] == `SEL_PWM)   ? {reg_pwm_rdata}  :
@@ -394,6 +398,7 @@
 	      .user_irq                     (user_irq                ),
           .usb_intr                     (usb_intr                ),
           .i2cm_intr                    (i2cm_intr               ),
+          .pwm_intr                     (pwm_intr                ),
 
 
 
@@ -407,7 +412,8 @@
          .cfg_dc_trim                   (cfg_dc_trim            ), // External trim for DCO mode
          .pll_ref_clk                   (pll_ref_clk            ), // Input oscillator to match
 
-         .dbg_clk_mon                   (dbg_clk_mon            )
+         .dbg_clk_mon                   (dbg_clk_mon            ),
+         .cfg_gpio_dgmode               (cfg_gpio_dgmode        )
 
 
 
@@ -421,6 +427,8 @@
               // Inputs
 		      .mclk                     ( mclk                      ),
               .h_reset_n                (s_reset_ssn                ),
+              .cfg_gpio_dgmode          (cfg_gpio_dgmode            ),
+              .pulse_1us                (pulse_1us                  ), 
 
 		      // Reg Bus Interface Signal
               .reg_cs                   (reg_gpio_cs                ),
@@ -438,6 +446,7 @@
               .cfg_gpio_dir_sel         (cfg_gpio_dir_sel           ),
               .pad_gpio_in              (pad_gpio_in                ),
               .pad_gpio_out             (pad_gpio_out               ),
+              .pwm_gpio_in              (pwm_gpio_in                ),
 
               .gpio_intr                (gpio_intr                  )          
 
@@ -456,7 +465,7 @@
 		      // Reg Bus Interface Signal
               .reg_cs                   (reg_pwm_cs                 ),
               .reg_wr                   (reg_wr                     ),
-              .reg_addr                 (reg_addr[4:2]              ),
+              .reg_addr                 (reg_addr[6:2]              ),
               .reg_wdata                (reg_wdata                  ),
               .reg_be                   (reg_be                     ),
 
@@ -464,9 +473,9 @@
               .reg_rdata                (reg_pwm_rdata              ),
               .reg_ack                  (reg_pwm_ack                ),
 
-              .pulse_1ms                (pulse_1ms                  ), 
-              .cfg_pwm_enb              (cfg_pwm_enb                ),
-              .pwm_wfm                  (pwm_wfm                    ) 
+              .pad_gpio                 (pwm_gpio_in                ),
+              .pwm_wfm                  (pwm_wfm                    ),
+              .pwm_intr                 (pwm_intr                   ) 
            );
 
 //-----------------------------------------------------------------------
@@ -489,7 +498,8 @@
               .reg_rdata                (reg_timer_rdata            ),
               .reg_ack                  (reg_timer_ack              ),
 
-              .pulse_1ms                (pulse_1ms                  ), 
+              .pulse_1us                (pulse_1us                  ), 
+              .pulse_1ms                (pulse1m_mclk               ), 
               .timer_intr               (timer_intr                 ) 
            );
 

diff --git a/verilog/rtl/pinmux/src/pwm.sv b/verilog/rtl/pinmux/src/pwm.sv
deleted file mode 100644
index 7a30772..0000000
--- a/verilog/rtl/pinmux/src/pwm.sv
+++ /dev/null

@@ -1,44 +0,0 @@
-
-//-------------------------------------------------------------------
-// PWM waveform period:  1000/((cfg_pwm_high+1) + (cfg_pwm_low+1))
-// For 1 Second with Duty cycle 50 =   1000/((499+1) + (499+1))
-// For 1 Second with 1ms On and 999ms Off =  1000/((0+1) + (998+1))
-// Timing Run's with 1 Milisecond pulse
-//-------------------------------------------------------------------
-
-module pwm(
-	output  logic         waveform,
-
-	input  logic         h_reset_n,
-	input  logic         mclk,
-	input  logic         pulse1m_mclk,
-	input  logic         cfg_pwm_enb,
-	input  logic [15:0]  cfg_pwm_high,
-	input  logic [15:0]  cfg_pwm_low
-);
-
-logic [15:0]  pwm_cnt  ; // PWM on/off counter
-
-
-always @(posedge mclk or negedge h_reset_n)
-begin 
-   if ( ~h_reset_n )
-   begin
-      pwm_cnt  <= 16'h0;
-      waveform <= 1'b0;
-   end
-   else if ( pulse1m_mclk  && cfg_pwm_enb)
-   begin 
-      if ( pwm_cnt == 16'h0 && waveform  == 1'b0) begin
-         pwm_cnt       <= cfg_pwm_high;
-         waveform      <= ~waveform;
-      end else if ( pwm_cnt == 16'h0 && waveform  == 1'b1) begin
-         pwm_cnt       <= cfg_pwm_low;
-         waveform      <= ~waveform;
-      end else begin
-     	   pwm_cnt <= pwm_cnt - 1;
-      end
-   end
-end 
-
-endmodule

diff --git a/verilog/rtl/pinmux/src/pwm_reg.sv b/verilog/rtl/pinmux/src/pwm_reg.sv
deleted file mode 100644
index 702c138..0000000
--- a/verilog/rtl/pinmux/src/pwm_reg.sv
+++ /dev/null

@@ -1,255 +0,0 @@
-//////////////////////////////////////////////////////////////////////////////
-// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
-// 
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// SPDX-License-Identifier: Apache-2.0
-// SPDX-FileContributor: Created by Dinesh Annayya <dinesha@opencores.org>
-//
-//////////////////////////////////////////////////////////////////////
-////                                                              ////
-////  PWM Register                                                ////
-////                                                              ////
-////  This file is part of the riscduino cores project            ////
-////  https://github.com/dineshannayya/riscduino.git              ////
-////                                                              ////
-////  Description                                                 ////
-////                                                              ////
-////  To Do:                                                      ////
-////    nothing                                                   ////
-////                                                              ////
-////  Author(s):                                                  ////
-////      - Dinesh Annayya, dinesha@opencores.org                 ////
-////                                                              ////
-////  Revision :                                                  ////
-////    0.1 - 15th Aug 2022, Dinesh A                             ////
-////          initial version                                     ////
-//////////////////////////////////////////////////////////////////////
-//
-module pwm_reg  (
-                       // System Signals
-                       // Inputs
-		               input logic           mclk               ,
-                       input logic           h_reset_n          ,
-
-		               // Reg Bus Interface Signal
-                       input logic           reg_cs             ,
-                       input logic           reg_wr             ,
-                       input logic [2:0]     reg_addr           ,
-                       input logic [31:0]    reg_wdata          ,
-                       input logic [3:0]     reg_be             ,
-
-                       // Outputs
-                       output logic [31:0]   reg_rdata          ,
-                       output logic          reg_ack            ,
-
-                       output logic [15:0]    cfg_pwm0_high     ,
-                       output logic [15:0]    cfg_pwm0_low      ,
-                       output logic [15:0]    cfg_pwm1_high     ,
-                       output logic [15:0]    cfg_pwm1_low      ,
-                       output logic [15:0]    cfg_pwm2_high     ,
-                       output logic [15:0]    cfg_pwm2_low      ,
-                       output logic [15:0]    cfg_pwm3_high     ,
-                       output logic [15:0]    cfg_pwm3_low      ,
-                       output logic [15:0]    cfg_pwm4_high     ,
-                       output logic [15:0]    cfg_pwm4_low      ,
-                       output logic [15:0]    cfg_pwm5_high     ,
-                       output logic [15:0]    cfg_pwm5_low      
-
-                ); 
-
-//-----------------------------------------------------------------------
-// Internal Wire Declarations
-//-----------------------------------------------------------------------
-
-logic          sw_rd_en        ;
-logic          sw_wr_en        ;
-logic [2:0]    sw_addr         ; // addressing 16 registers
-logic [31:0]   sw_reg_wdata    ;
-logic [3:0]    sw_be           ;
-
-logic [31:0]   reg_out         ;
-logic [31:0]   reg_0           ; // CONFIG - Unused
-logic [31:0]   reg_1           ; // PWM-REG-0
-logic [31:0]   reg_2           ; // PWM-REG-1
-logic [31:0]   reg_3           ; // PWM-REG-2
-logic [31:0]   reg_4           ; // PWM-REG-3
-logic [31:0]   reg_5           ; // PWM-REG-4
-logic [31:0]   reg_6           ; // PWM-REG-5
-
-assign       sw_addr       = reg_addr;
-assign       sw_rd_en      = reg_cs & !reg_wr;
-assign       sw_wr_en      = reg_cs & reg_wr;
-assign       sw_be         = reg_be;
-assign       sw_reg_wdata  = reg_wdata;
-
-//-----------------------------------------------------------------------
-// register read enable and write enable decoding logic
-//-----------------------------------------------------------------------
-wire   sw_wr_en_0 = sw_wr_en  & (sw_addr == 3'h0);
-wire   sw_wr_en_1 = sw_wr_en  & (sw_addr == 3'h1);
-wire   sw_wr_en_2 = sw_wr_en  & (sw_addr == 3'h2);
-wire   sw_wr_en_3 = sw_wr_en  & (sw_addr == 3'h3);
-wire   sw_wr_en_4 = sw_wr_en  & (sw_addr == 3'h4);
-wire   sw_wr_en_5 = sw_wr_en  & (sw_addr == 3'h5);
-wire   sw_wr_en_6 = sw_wr_en  & (sw_addr == 3'h6);
-
-wire   sw_rd_en_0 = sw_rd_en  & (sw_addr == 3'h0);
-wire   sw_rd_en_1 = sw_rd_en  & (sw_addr == 3'h1);
-wire   sw_rd_en_2 = sw_rd_en  & (sw_addr == 3'h2);
-wire   sw_rd_en_3 = sw_rd_en  & (sw_addr == 3'h3);
-wire   sw_rd_en_4 = sw_rd_en  & (sw_addr == 3'h4);
-wire   sw_rd_en_5 = sw_rd_en  & (sw_addr == 3'h5);
-wire   sw_rd_en_6 = sw_rd_en  & (sw_addr == 3'h6);
-
-
-always @ (posedge mclk or negedge h_reset_n)
-begin : preg_out_Seq
-   if (h_reset_n == 1'b0) begin
-      reg_rdata  <= 'h0;
-      reg_ack    <= 1'b0;
-   end else if (reg_cs && !reg_ack) begin
-      reg_rdata  <= reg_out;
-      reg_ack    <= 1'b1;
-   end else begin
-      reg_ack    <= 1'b0;
-   end
-end
-
-//--------------------------------------------
-// reg-0: Reserve for pwm global config
-//---------------------------------------------
-assign reg_0 = 'h0;
-//-----------------------------------------------------------------------
-// Logic for PWM-0 Config
-//-----------------------------------------------------------------------
-assign  cfg_pwm0_low  = reg_1[15:0];  // low period of w/f 
-assign  cfg_pwm0_high = reg_1[31:16]; // high period of w/f 
-
-gen_32b_reg  #(32'h0) u_reg_1	(
-	      //List of Inputs
-	      .reset_n    (h_reset_n     ),
-	      .clk        (mclk          ),
-	      .cs         (sw_wr_en_1    ),
-	      .we         (sw_be         ),		 
-	      .data_in    (sw_reg_wdata  ),
-	      
-	      //List of Outs
-	      .data_out   (reg_1         )
-	      );
-
-
-//-----------------------------------------------------------------------
-// Logic for PWM-1 Config
-//-----------------------------------------------------------------------
-assign  cfg_pwm1_low  = reg_2[15:0];  // low period of w/f 
-assign  cfg_pwm1_high = reg_2[31:16]; // high period of w/f 
-gen_32b_reg  #(32'h0) u_reg_2	(
-	      //List of Inputs
-	      .reset_n    (h_reset_n     ),
-	      .clk        (mclk          ),
-	      .cs         (sw_wr_en_2    ),
-	      .we         (sw_be         ),		 
-	      .data_in    (sw_reg_wdata  ),
-	      
-	      //List of Outs
-	      .data_out   (reg_2         )
-	      );
-
-//-----------------------------------------------------------------------
-// Logic for PWM-2 Config
-//-----------------------------------------------------------------------
-assign  cfg_pwm2_low  = reg_3[15:0];  // low period of w/f 
-assign  cfg_pwm2_high = reg_3[31:16]; // high period of w/f 
-gen_32b_reg  #(32'h0) u_reg_3	(
-	      //List of Inputs
-	      .reset_n    (h_reset_n     ),
-	      .clk        (mclk          ),
-	      .cs         (sw_wr_en_3   ),
-	      .we         (sw_be         ),		 
-	      .data_in    (sw_reg_wdata  ),
-	      
-	      //List of Outs
-	      .data_out   (reg_3        )
-	      );
-
-//-----------------------------------------------------------------------
-// Logic for PWM-3 Config
-//-----------------------------------------------------------------------
-assign  cfg_pwm3_low  = reg_4[15:0];  // low period of w/f 
-assign  cfg_pwm3_high = reg_4[31:16]; // high period of w/f 
-gen_32b_reg  #(32'h0) u_reg_4	(
-	      //List of Inputs
-	      .reset_n    (h_reset_n     ),
-	      .clk        (mclk          ),
-	      .cs         (sw_wr_en_4   ),
-	      .we         (sw_be         ),		 
-	      .data_in    (sw_reg_wdata  ),
-	      
-	      //List of Outs
-	      .data_out   (reg_4        )
-	      );
-
-//-----------------------------------------------------------------------
-// Logic for PWM-4 Config
-//-----------------------------------------------------------------------
-assign  cfg_pwm4_low  = reg_5[15:0];  // low period of w/f 
-assign  cfg_pwm4_high = reg_5[31:16]; // high period of w/f 
-
-gen_32b_reg  #(32'h0) u_reg_5	(
-	      //List of Inputs
-	      .reset_n    (h_reset_n     ),
-	      .clk        (mclk          ),
-	      .cs         (sw_wr_en_5   ),
-	      .we         (sw_be         ),		 
-	      .data_in    (sw_reg_wdata  ),
-	      
-	      //List of Outs
-	      .data_out   (reg_5        )
-	      );
-
-//-----------------------------------------------------------------------
-// Logic for PWM-5 Config
-//-----------------------------------------------------------------------
-assign  cfg_pwm5_low  = reg_6[15:0];  // low period of w/f 
-assign  cfg_pwm5_high = reg_6[31:16]; // high period of w/f 
-
-gen_32b_reg  #(32'h0) u_reg_6	(
-	      //List of Inputs
-	      .reset_n    (h_reset_n     ),
-	      .clk        (mclk          ),
-	      .cs         (sw_wr_en_6    ),
-	      .we         (sw_be         ),		 
-	      .data_in    (sw_reg_wdata  ),
-	      
-	      //List of Outs
-	      .data_out   (reg_6        )
-	      );
-
-
-always_comb
-begin 
-  reg_out [31:0] = 32'h0;
-
-  case (sw_addr [2:0])
-    3'b000    : reg_out [31:0] = reg_0 [31:0];     
-    3'b001    : reg_out [31:0] = reg_1 [31:0];    
-    3'b010    : reg_out [31:0] = reg_2 [31:0];     
-    3'b011    : reg_out [31:0] = reg_3 [31:0];    
-    3'b100    : reg_out [31:0] = reg_4 [31:0];    
-    3'b101    : reg_out [31:0] = reg_5 [31:0];    
-    3'b110    : reg_out [31:0] = reg_6 [31:0];    
-    default   : reg_out [31:0] = 32'h0;
-  endcase
-end
-
-endmodule

diff --git a/verilog/rtl/pinmux/src/pwm_top.sv b/verilog/rtl/pinmux/src/pwm_top.sv
deleted file mode 100644
index 2b8d3a5..0000000
--- a/verilog/rtl/pinmux/src/pwm_top.sv
+++ /dev/null

@@ -1,172 +0,0 @@
-//////////////////////////////////////////////////////////////////////////////
-// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
-// 
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// SPDX-License-Identifier: Apache-2.0
-// SPDX-FileContributor: Created by Dinesh Annayya <dinesha@opencores.org>
-//
-//////////////////////////////////////////////////////////////////////
-////                                                              ////
-////  PWM Top                                                     ////
-////                                                              ////
-////  This file is part of the riscduino cores project            ////
-////  https://github.com/dineshannayya/riscduino.git              ////
-////                                                              ////
-////  Description                                                 ////
-///     Includes 6 PWM                                            ////
-////                                                              ////
-////  To Do:                                                      ////
-////    nothing                                                   ////
-////                                                              ////
-////  Author(s):                                                  ////
-////      - Dinesh Annayya, dinesha@opencores.org                 ////
-////                                                              ////
-////  Revision :                                                  ////
-////    0.1 - 15th Aug 2022, Dinesh A                             ////
-////          initial version                                     ////
-//////////////////////////////////////////////////////////////////////
-
-module pwm_top  (
-                       // System Signals
-                       // Inputs
-		               input logic           mclk,
-                       input logic           h_reset_n,
-
-		               // Reg Bus Interface Signal
-                       input logic           reg_cs,
-                       input logic           reg_wr,
-                       input logic [2:0]     reg_addr,
-                       input logic [31:0]    reg_wdata,
-                       input logic [3:0]     reg_be,
-
-                       // Outputs
-                       output logic [31:0]   reg_rdata,
-                       output logic          reg_ack,
-
-                   
-                       input  logic          pulse_1ms, 
-                       input  logic [5:0]    cfg_pwm_enb,
-                       output logic [5:0]    pwm_wfm 
-
-                ); 
-
-//---------------------------------------------------
-// 6 PWM variabled
-//---------------------------------------------------
-
-logic [15:0]    cfg_pwm0_high           ;
-logic [15:0]    cfg_pwm0_low            ;
-logic [15:0]    cfg_pwm1_high           ;
-logic [15:0]    cfg_pwm1_low            ;
-logic [15:0]    cfg_pwm2_high           ;
-logic [15:0]    cfg_pwm2_low            ;
-logic [15:0]    cfg_pwm3_high           ;
-logic [15:0]    cfg_pwm3_low            ;
-logic [15:0]    cfg_pwm4_high           ;
-logic [15:0]    cfg_pwm4_low            ;
-logic [15:0]    cfg_pwm5_high           ;
-logic [15:0]    cfg_pwm5_low            ;
-
-
-
-pwm_reg  u_reg (
-		       .mclk             (mclk                ),
-               .h_reset_n        (h_reset_n           ),
-
-		       // Reg Bus Interface Signal
-               .reg_cs           (reg_cs              ),
-               .reg_wr           (reg_wr              ),
-               .reg_addr         (reg_addr            ),
-               .reg_wdata        (reg_wdata           ),
-               .reg_be           (reg_be              ),
-
-               // Outputs
-               .reg_rdata        (reg_rdata           ),
-               .reg_ack          (reg_ack             ),
-
-               .cfg_pwm0_high    (cfg_pwm0_high       ),
-               .cfg_pwm0_low     (cfg_pwm0_low        ),
-               .cfg_pwm1_high    (cfg_pwm1_high       ),
-               .cfg_pwm1_low     (cfg_pwm1_low        ),
-               .cfg_pwm2_high    (cfg_pwm2_high       ),
-               .cfg_pwm2_low     (cfg_pwm2_low        ),
-               .cfg_pwm3_high    (cfg_pwm3_high       ),
-               .cfg_pwm3_low     (cfg_pwm3_low        ),
-               .cfg_pwm4_high    (cfg_pwm4_high       ),
-               .cfg_pwm4_low     (cfg_pwm4_low        ),
-               .cfg_pwm5_high    (cfg_pwm5_high       ),
-               .cfg_pwm5_low     (cfg_pwm5_low        )
-
-                ); 
-
-
-// 6 PWM Waveform Generator
-pwm  u_pwm_0 (
-	  .waveform                    (pwm_wfm[0]         ), 
-	  .h_reset_n                   (h_reset_n          ),
-	  .mclk                        (mclk               ),
-	  .pulse1m_mclk                (pulse_1ms          ),
-	  .cfg_pwm_enb                 (cfg_pwm_enb[0]     ),
-	  .cfg_pwm_high                (cfg_pwm0_high      ),
-	  .cfg_pwm_low                 (cfg_pwm0_low       )
-     );
-
-pwm  u_pwm_1 (
-	  .waveform                    (pwm_wfm[1]         ), 
-	  .h_reset_n                   (h_reset_n          ),
-	  .mclk                        (mclk               ),
-	  .pulse1m_mclk                (pulse_1ms          ),
-	  .cfg_pwm_enb                 (cfg_pwm_enb[1]     ),
-	  .cfg_pwm_high                (cfg_pwm1_high      ),
-	  .cfg_pwm_low                 (cfg_pwm1_low       )
-     );
-   
-pwm  u_pwm_2 (
-	  .waveform                    (pwm_wfm[2]         ), 
-	  .h_reset_n                   (h_reset_n          ),
-	  .mclk                        (mclk               ),
-	  .pulse1m_mclk                (pulse_1ms          ),
-	  .cfg_pwm_enb                 (cfg_pwm_enb[2]     ),
-	  .cfg_pwm_high                (cfg_pwm2_high      ),
-	  .cfg_pwm_low                 (cfg_pwm2_low       )
-     );
-
-pwm  u_pwm_3 (
-	  .waveform                    (pwm_wfm[3]         ), 
-	  .h_reset_n                   (h_reset_n          ),
-	  .mclk                        (mclk               ),
-	  .pulse1m_mclk                (pulse_1ms          ),
-	  .cfg_pwm_enb                 (cfg_pwm_enb[3]     ),
-	  .cfg_pwm_high                (cfg_pwm3_high      ),
-	  .cfg_pwm_low                 (cfg_pwm3_low       )
-     );
-pwm  u_pwm_4 (
-	  .waveform                    (pwm_wfm[4]         ), 
-	  .h_reset_n                   (h_reset_n          ),
-	  .mclk                        (mclk               ),
-	  .pulse1m_mclk                (pulse_1ms          ),
-	  .cfg_pwm_enb                 (cfg_pwm_enb[4]     ),
-	  .cfg_pwm_high                (cfg_pwm4_high      ),
-	  .cfg_pwm_low                 (cfg_pwm4_low       )
-     );
-pwm  u_pwm_5 (
-	  .waveform                    (pwm_wfm[5]         ), 
-	  .h_reset_n                   (h_reset_n          ),
-	  .mclk                        (mclk               ),
-	  .pulse1m_mclk                (pulse_1ms          ),
-	  .cfg_pwm_enb                 (cfg_pwm_enb[5]     ),
-	  .cfg_pwm_high                (cfg_pwm5_high      ),
-	  .cfg_pwm_low                 (cfg_pwm5_low       )
-     );
-
-endmodule

diff --git a/verilog/rtl/pinmux/src/strap_ctrl.sv b/verilog/rtl/pinmux/src/strap_ctrl.sv
index c0405b0..54ecdf4 100644
--- a/verilog/rtl/pinmux/src/strap_ctrl.sv
+++ b/verilog/rtl/pinmux/src/strap_ctrl.sv

@@ -92,9 +92,9 @@
                  2'b10 - Default value + 4               
                  2'b11 - Default value - 4 
      bit [4:13]   - uart master config control
-                 2'b00   - constant value based on system clock-50Mhz (Default)
-                 2'b01   - constant value based on system clock-40Mhz 
-                 2'b10   - constant value based on system clock-60Mhz (USB Ref Clock)
+                 2'b00   - Auto Detect (Default)
+                 2'b01   - constant value based on system clock-50Mhz
+                 2'b10   - constant value based on system clock-4Mhz 
                  2'b11   - load from LA
      bit [14:13] - Reserved
      bit [15]    - Strap Mode

diff --git a/verilog/rtl/pwm/src/pwm.sv b/verilog/rtl/pwm/src/pwm.sv
new file mode 100644
index 0000000..922c369
--- /dev/null
+++ b/verilog/rtl/pwm/src/pwm.sv

@@ -0,0 +1,270 @@
+
+//-------------------------------------------------------------------
+// PWM waveform period:  1000/((cfg_pwm_high+1) + (cfg_pwm_low+1))
+// For 1 Second with Duty cycle 50 =   1000/((499+1) + (499+1))
+// For 1 Second with 1ms On and 999ms Off =  1000/((0+1) + (998+1))
+// Timing Run's with 1 Milisecond pulse
+//-------------------------------------------------------------------
+
+module pwm(
+
+	input  logic          h_reset_n         ,
+	input  logic          mclk              ,
+
+	output  logic         pwm_wfm_o         ,
+	output  logic         pwm_os_done       ,
+	output  logic         pwm_ovflow_pe     ,
+    output  logic         gpio_tgr          ,
+
+    input logic [7:0]     pad_gpio          ,
+
+    input logic           cfg_pwm_enb       , // pwm operation enable
+    input logic           cfg_pwm_run       , // pwm operation enable
+    input logic [3:0]     cfg_pwm_scale     , // pwm clock scaling
+    input logic           cfg_pwm_oneshot   , // pwm OneShot mode
+    input logic           cfg_pwm_frun      , // pwm is free running
+    input logic           cfg_pwm_gpio_enb  , // pwm gpio based trigger
+    input logic           cfg_pwm_gpio_edge , // pwm gpio based trigger edge
+    input logic [2:0]     cfg_pwm_gpio_sel  , // gpio Selection
+    input logic           cfg_pwm_hold      , // Hold data pwm data During pwm Disable
+    input logic           cfg_pwm_inv       , // invert output
+    input logic           cfg_pwm_zeropd    , // Reset on pmw_cnt match to period
+    input logic [1:0]     cfg_pwm_mode      , // pwm Pulse Generation mode
+    input logic           cfg_comp0_center  , // Compare cnt at comp0 center
+    input logic           cfg_comp1_center  , // Compare cnt at comp1 center
+    input logic           cfg_comp2_center  , // Compare cnt at comp2 center
+    input logic           cfg_comp3_center  , // Compare cnt at comp3 center
+    input logic [15:0]    cfg_pwm_period    , // pwm period
+    input logic [15:0]    cfg_pwm_comp0     , // compare0
+    input logic [15:0]    cfg_pwm_comp1     , // compare1
+    input logic [15:0]    cfg_pwm_comp2     , // compare2
+    input logic [15:0]    cfg_pwm_comp3       // compare3
+);
+
+logic [14:0]  pwm_scnt    ; // PWM Scaling counter
+logic [15:0]  pwm_cnt     ; // PWM counter
+logic         cnt_trg     ;
+logic         pwm_wfm_i   ;
+logic         pwm_wfm_hold;
+logic         comp0_match ;
+logic         comp1_match ;
+logic         comp2_match ;
+logic         comp3_match ;
+//--------------------------------
+// Counter Scaling
+// In GPIO mode, wait for first GPIO transition
+//--------------------------------
+
+always @(posedge mclk or negedge h_reset_n)
+begin 
+   if ( ~h_reset_n ) begin
+      pwm_scnt  <= 15'h0;
+   end else begin
+      //-------------------------------------------------------
+      // Added additional case to handle when new gpio trigger
+      // generated before completing the current Run
+      //-------------------------------------------------------
+      if(cfg_pwm_enb && cfg_pwm_run && !gpio_tgr) begin
+         pwm_scnt <= pwm_scnt + 1;
+      end else begin
+         pwm_scnt <= 15'h0;
+      end
+   end
+end 
+
+//-----------------------------------------------------------------------------
+// pwm_scaling used to decide on the trigger event for the pwm_cnt
+// 0  ==> pwm_cnt increment every system cycle
+// 1  ==> 2^0 => pmw_cnt increase once in two system cycle
+// 15 ==>a 2^15 => pwm_cnt increase once in 32768 system cycle
+//-----------------------------------------------------------------------------
+
+always_comb
+begin
+   cnt_trg = 0;
+   case(cfg_pwm_scale)
+   4'b0000:  cnt_trg = 1;
+   4'b0001:  cnt_trg = pwm_scnt[0];
+   4'b0010:  cnt_trg = &pwm_scnt[1:0];
+   4'b0011:  cnt_trg = &pwm_scnt[2:0];
+   4'b0100:  cnt_trg = &pwm_scnt[3:0];
+   4'b0101:  cnt_trg = &pwm_scnt[4:0];
+   4'b0110:  cnt_trg = &pwm_scnt[5:0];
+   4'b0111:  cnt_trg = &pwm_scnt[6:0];
+   4'b1000:  cnt_trg = &pwm_scnt[7:0];
+   4'b1001:  cnt_trg = &pwm_scnt[8:0];
+   4'b1010:  cnt_trg = &pwm_scnt[9:0];
+   4'b1011:  cnt_trg = &pwm_scnt[10:0];
+   4'b1100:  cnt_trg = &pwm_scnt[11:0];
+   4'b1101:  cnt_trg = &pwm_scnt[12:0];
+   4'b1110:  cnt_trg = &pwm_scnt[13:0];
+   4'b1111:  cnt_trg = &pwm_scnt[14:0];
+   default:  cnt_trg = 0;
+   endcase
+end
+
+//----------------------------------------------------------
+//Counter Overflow condition
+// 1. At Roll Over
+// 2. If compare on period enable, then at period
+//----------------------------------------------------------
+logic pwm_ovflow_l;
+wire pwm_ovflow = ((&pwm_cnt) | (cfg_pwm_zeropd  && (pwm_cnt == cfg_pwm_period))) & cfg_pwm_enb;
+
+
+// overflow single cycle pos edge pulse
+assign pwm_ovflow_pe = (!pwm_ovflow_l & pwm_ovflow);
+
+// Don't generate PWM done at exact clash at gpio trigger, higer priority to gpio trigger
+assign pwm_os_done = (cfg_pwm_oneshot && !gpio_tgr) ? pwm_ovflow_pe : 1'b0;
+
+always @(posedge mclk or negedge h_reset_n)
+begin 
+   if ( ~h_reset_n ) begin
+      pwm_cnt      <= 16'h0;
+      pwm_ovflow_l <= 1'b0;
+   end else begin
+      pwm_ovflow_l <= pwm_ovflow;
+      //-------------------------------------------------------
+      // Added additional case to handle when new gpio trigger
+      // generated before completing the current Run
+      //-------------------------------------------------------
+      if(cfg_pwm_enb && cfg_pwm_run && !gpio_tgr) begin
+         if(cnt_trg) begin
+            if(pwm_ovflow) begin
+               pwm_cnt  <= 'h0;
+            end else begin
+               pwm_cnt <= pwm_cnt + 1;
+            end
+         end 
+      end else begin
+         pwm_cnt  <= 16'h0;
+      end
+   end
+end
+
+//-----------------------------
+// compare-0 match logic generation
+//------------------------------
+
+always_comb begin
+   comp0_match = 0;
+   if(cfg_comp0_center)begin
+      comp0_match = (({16{pwm_cnt[15]}} ^ pwm_cnt) >= cfg_pwm_comp0);
+   end else begin
+      comp0_match = (pwm_cnt >= cfg_pwm_comp0);
+   end
+end
+
+//-----------------------------
+// compare-1 match logic generation
+//------------------------------
+always_comb begin
+   comp1_match = 0;
+   if(cfg_comp1_center)begin
+      comp1_match = (({16{pwm_cnt[15]}}^ pwm_cnt) >= cfg_pwm_comp1);
+   end else begin
+      comp1_match = (pwm_cnt >= cfg_pwm_comp1);
+   end
+end
+
+//-----------------------------
+// compare-2 match logic generation
+//------------------------------
+always_comb begin
+   comp2_match = 0;
+   if(cfg_comp2_center)begin
+      comp2_match = (({16{pwm_cnt[15]}} ^ pwm_cnt) >= cfg_pwm_comp2);
+   end else begin
+      comp2_match = (pwm_cnt >= cfg_pwm_comp2);
+   end
+end
+
+//-----------------------------
+// compare-3 match logic generation
+//------------------------------
+always_comb begin
+   comp3_match = 0;
+   if(cfg_comp3_center) begin
+      comp3_match = (({16{pwm_cnt[15]}} ^ pwm_cnt) >= cfg_pwm_comp3);
+   end else begin
+      comp3_match = (pwm_cnt >= cfg_pwm_comp3);
+   end
+end
+
+//---------------------------------------------
+// Consolidated pwm waform generation 
+// based on pwm mode
+//---------------------------------------------
+
+always_comb begin
+   pwm_wfm_i = 0;
+   case(cfg_pwm_mode)
+   2'b00: pwm_wfm_i =  comp0_match;
+   2'b01: pwm_wfm_i =  comp0_match ^ comp1_match;
+   2'b10: pwm_wfm_i =  comp0_match ^ comp1_match ^ comp2_match;
+   2'b11: pwm_wfm_i =  comp0_match ^ comp1_match ^ comp2_match ^ comp3_match;
+   default: pwm_wfm_i=0;
+   endcase
+end
+
+//-----------------------------------------------
+// Holding the pwm waveform in active region
+//------------------------------------------------
+always @(posedge mclk or negedge h_reset_n)
+begin 
+   if ( ~h_reset_n ) begin
+      pwm_wfm_hold  <= 1'b0;
+   end else if(cfg_pwm_enb) begin
+      pwm_wfm_hold <= pwm_wfm_i;
+   end
+end
+
+//--------------------------------------------
+// Final Waveform output generation based
+// on pwm_hold and pwm_inv combination
+//--------------------------------------------
+always_comb begin
+   pwm_wfm_o = 0;
+   if(!cfg_pwm_enb && cfg_pwm_hold) begin
+      if(cfg_pwm_inv) pwm_wfm_o = !pwm_wfm_hold;
+      else            pwm_wfm_o = pwm_wfm_hold;
+   end else begin
+      if(cfg_pwm_inv) pwm_wfm_o = !pwm_wfm_i;
+      else            pwm_wfm_o = pwm_wfm_i;
+   end
+end
+
+//----------------------------------------
+// GPIO Trigger Generation
+//----------------------------------------
+logic gpio_l;
+wire gpio = pad_gpio[cfg_pwm_gpio_sel];
+
+// GPIO Pos and Neg Edge Selection
+wire gpio_pe = (gpio & !gpio_l);
+wire gpio_ne = (!gpio & gpio_l);
+
+always @(posedge mclk or negedge h_reset_n)
+begin 
+   if ( ~h_reset_n ) begin
+      gpio_l        <= 1'b0;
+      gpio_tgr      <= 1'b0;
+   end else begin
+      gpio_l <= gpio;
+      if(cfg_pwm_enb && cfg_pwm_gpio_enb) begin
+         gpio_l <= gpio;
+         if(cfg_pwm_gpio_edge) begin
+             gpio_tgr        <= gpio_ne;
+         end else begin
+             gpio_tgr        <= gpio_pe;
+         end
+      end else begin
+         gpio_l        <= 1'b0;
+         gpio_tgr      <= 1'b0;
+      end
+   end
+end
+
+
+endmodule

diff --git a/verilog/rtl/pwm/src/pwm_blk_reg.sv b/verilog/rtl/pwm/src/pwm_blk_reg.sv
new file mode 100644
index 0000000..9d9554d
--- /dev/null
+++ b/verilog/rtl/pwm/src/pwm_blk_reg.sv

@@ -0,0 +1,285 @@
+//////////////////////////////////////////////////////////////////////////////
+// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileContributor: Created by Dinesh Annayya <dinesh.annayya@gmail.com>
+//
+//////////////////////////////////////////////////////////////////////
+////                                                              ////
+////  PWM Register                                                ////
+////                                                              ////
+////  This file is part of the riscduino cores project            ////
+////  https://github.com/dineshannayya/riscduino.git              ////
+////                                                              ////
+////  Description                                                 ////
+////                                                              ////
+////  To Do:                                                      ////
+////    nothing                                                   ////
+////                                                              ////
+////  Author(s):                                                  ////
+////      - Dinesh Annayya, dinesha@opencores.org                 ////
+////                                                              ////
+////  Revision :                                                  ////
+////    0.1 - 15th Aug 2022, Dinesh A                             ////
+////          initial version                                     ////
+////    0.2 - 13th Sept 2022, Dinesh A                            ////
+////          Change Register to PWM Based                        ////
+//////////////////////////////////////////////////////////////////////
+//
+module pwm_blk_reg  (
+                       // System Signals
+                       // Inputs
+		               input logic           mclk               ,
+                       input logic           h_reset_n          ,
+
+		               // Reg Bus Interface Signal
+                       input logic           reg_cs             ,
+                       input logic           reg_wr             ,
+                       input logic [1:0]     reg_addr           ,
+                       input logic [31:0]    reg_wdata          ,
+                       input logic [3:0]     reg_be             ,
+
+                       // Outputs
+                       output logic [31:0]   reg_rdata          ,
+                       output logic          reg_ack            ,
+
+                       input logic            cfg_pwm_enb       , // PWM operation enable
+                       input logic            cfg_pwm_dupdate   , // Disable Config update
+                       input logic            pwm_cfg_update    , // Update the pwm config on roll-over or completion
+                       
+                       output logic [3:0]     cfg_pwm_scale     , // clock scaling
+                       output logic           cfg_pwm_oneshot   , // PWM OneShot mode
+                       output logic           cfg_pwm_frun      , // PWM is free running
+                       output logic           cfg_pwm_gpio_enb  , // PWM GPIO based trigger enable
+                       output logic           cfg_pwm_gpio_edge , // PWM GPIO based trigger edge
+                       output logic [2:0]     cfg_pwm_gpio_sel  , // GPIO Selection
+                       output logic           cfg_pwm_hold      , // Hold data PWM data During PWM Disable
+                       output logic           cfg_pwm_inv       , // invert output
+                       output logic           cfg_pwm_zeropd    , // Reset on pmw_cnt match to period
+                       output logic [1:0]     cfg_pwm_mode      , // PWM Pulse Generation mode
+                       output logic           cfg_comp0_center  , // Compare cnt at comp0 center
+                       output logic           cfg_comp1_center  , // Compare cnt at comp1 center
+                       output logic           cfg_comp2_center  , // Compare cnt at comp2 center
+                       output logic           cfg_comp3_center  , // Compare cnt at comp3 center
+                       output logic [15:0]    cfg_pwm_period    , // PWM period
+                       output logic [15:0]    cfg_pwm_comp0     , // compare0
+                       output logic [15:0]    cfg_pwm_comp1     , // compare1
+                       output logic [15:0]    cfg_pwm_comp2     , // compare2
+                       output logic [15:0]    cfg_pwm_comp3       // compare3
+
+                ); 
+
+//-----------------------------------------------------------------------
+// Internal Wire Declarations
+//-----------------------------------------------------------------------
+
+logic          sw_rd_en        ;
+logic          sw_wr_en        ;
+logic [1:0]    sw_addr         ; // addressing 16 registers
+logic [31:0]   sw_reg_wdata    ;
+logic [3:0]    sw_be           ;
+
+logic [31:0]   reg_out         ;
+logic [31:0]   reg_0           ; // CONFIG - Unused
+logic [31:0]   reg_1           ; // PWM-REG-0
+logic [31:0]   reg_2           ; // PWM-REG-1
+logic [31:0]   reg_3           ; // PWM-REG-2
+logic [31:0]   reg_4           ; // PWM-REG-3
+logic [31:0]   reg_5           ; // PWM-REG-4
+logic [31:0]   reg_6           ; // PWM-REG-5
+
+assign       sw_addr       = reg_addr;
+assign       sw_rd_en      = reg_cs & !reg_wr;
+assign       sw_wr_en      = reg_cs & reg_wr;
+assign       sw_be         = reg_be;
+assign       sw_reg_wdata  = reg_wdata;
+
+//-----------------------------------------------------------------------
+// register read enable and write enable decoding logic
+//-----------------------------------------------------------------------
+wire   sw_wr_en_0 = sw_wr_en  & (sw_addr == 2'h0);
+wire   sw_wr_en_1 = sw_wr_en  & (sw_addr == 2'h1);
+wire   sw_wr_en_2 = sw_wr_en  & (sw_addr == 2'h2);
+wire   sw_wr_en_3 = sw_wr_en  & (sw_addr == 2'h3);
+
+wire   sw_rd_en_0 = sw_rd_en  & (sw_addr == 2'h0);
+wire   sw_rd_en_1 = sw_rd_en  & (sw_addr == 2'h1);
+wire   sw_rd_en_2 = sw_rd_en  & (sw_addr == 2'h2);
+wire   sw_rd_en_3 = sw_rd_en  & (sw_addr == 2'h3);
+
+
+always @ (posedge mclk or negedge h_reset_n)
+begin : preg_out_Seq
+   if (h_reset_n == 1'b0) begin
+      reg_rdata  <= 'h0;
+      reg_ack    <= 1'b0;
+   end else if (reg_cs && !reg_ack) begin
+      reg_rdata  <= reg_out;
+      reg_ack    <= 1'b1;
+   end else begin
+      reg_ack    <= 1'b0;
+   end
+end
+
+//--------------------------------------------
+// PWM-0 Config
+//---------------------------------------------
+logic [31:0] pwm_cfg0;
+
+assign cfg_pwm_scale     = pwm_cfg0[3:0];
+assign cfg_pwm_oneshot   = pwm_cfg0[4];
+assign cfg_pwm_frun      = pwm_cfg0[5];
+assign cfg_pwm_gpio_enb  = pwm_cfg0[6];
+assign cfg_pwm_gpio_edge = pwm_cfg0[7]; // 1 -> negedge
+assign cfg_pwm_gpio_sel  = pwm_cfg0[10:8];
+assign cfg_pwm_hold      = pwm_cfg0[11];
+assign cfg_pwm_mode      = pwm_cfg0[13:12];
+assign cfg_pwm_inv       = pwm_cfg0[14];
+assign cfg_pwm_zeropd    = pwm_cfg0[15]; // Reset on Matching Period
+assign cfg_comp0_center  = pwm_cfg0[16];
+assign cfg_comp1_center  = pwm_cfg0[17];
+assign cfg_comp2_center  = pwm_cfg0[18];
+assign cfg_comp3_center  = pwm_cfg0[19];
+
+gen_32b_reg  #(32'h0) u_reg_0	(
+	      //List of Inputs
+	      .reset_n    (h_reset_n     ),
+	      .clk        (mclk          ),
+	      .cs         (sw_wr_en_0    ),
+	      .we         (sw_be         ),		 
+	      .data_in    (sw_reg_wdata  ),
+	      
+	      //List of Outs
+	      .data_out   (reg_0         )
+	      );
+
+pwm_cfg_dglitch u_dglitch_0 (
+		  .mclk           (mclk               ),
+          .h_reset_n      (h_reset_n          ),
+
+          .enb            (cfg_pwm_enb        ), 
+          .cfg_update     (pwm_cfg_update     ), 
+          .cfg_dupdate    (cfg_pwm_dupdate    ), 
+          .reg_in         (reg_0              ),
+          .reg_out        (pwm_cfg0           )    
+
+
+          );
+//-----------------------------------------------------------------------
+// Logic for PWM-1 Config
+//-----------------------------------------------------------------------
+logic [31:0] pwm_cfg1;
+assign  cfg_pwm_period = pwm_cfg1[15:0];
+
+gen_32b_reg  #(32'h0) u_reg_1	(
+	      //List of Inputs
+	      .reset_n    (h_reset_n     ),
+	      .clk        (mclk          ),
+	      .cs         (sw_wr_en_1    ),
+	      .we         (sw_be         ),		 
+	      .data_in    (sw_reg_wdata  ),
+	      
+	      //List of Outs
+	      .data_out   (reg_1         )
+	      );
+
+pwm_cfg_dglitch u_dglitch_1 (
+		  .mclk           (mclk               ),
+          .h_reset_n      (h_reset_n          ),
+
+          .enb            (cfg_pwm_enb        ), 
+          .cfg_update     (pwm_cfg_update     ), 
+          .cfg_dupdate    (cfg_pwm_dupdate    ), 
+          .reg_in         (reg_1              ),
+          .reg_out        (pwm_cfg1           )    
+
+
+          );
+
+//-----------------------------------------------------------------------
+// Logic for PWM-2 Config
+//-----------------------------------------------------------------------
+logic [31:0] pwm_cfg2;
+assign  cfg_pwm_comp0  = pwm_cfg2[15:0];  // Comparator-0
+assign  cfg_pwm_comp1  = pwm_cfg2[31:16]; // Comparator-1
+gen_32b_reg  #(32'h0) u_reg_2	(
+	      //List of Inputs
+	      .reset_n    (h_reset_n     ),
+	      .clk        (mclk          ),
+	      .cs         (sw_wr_en_2    ),
+	      .we         (sw_be         ),		 
+	      .data_in    (sw_reg_wdata  ),
+	      
+	      //List of Outs
+	      .data_out   (reg_2         )
+	      );
+
+pwm_cfg_dglitch u_dglitch_2 (
+		  .mclk           (mclk               ),
+          .h_reset_n      (h_reset_n          ),
+
+          .enb            (cfg_pwm_enb        ), 
+          .cfg_update     (pwm_cfg_update     ), 
+          .cfg_dupdate    (cfg_pwm_dupdate    ), 
+          .reg_in         (reg_2              ),
+          .reg_out        (pwm_cfg2           )    
+
+
+          );
+//-----------------------------------------------------------------------
+// Logic for PWM-3 Config
+//-----------------------------------------------------------------------
+logic [31:0] pwm_cfg3;
+assign  cfg_pwm_comp2  = reg_3[15:0];  // Comparator-2
+assign  cfg_pwm_comp3  = reg_3[31:16]; // Comparator-3
+gen_32b_reg  #(32'h0) u_reg_3	(
+	      //List of Inputs
+	      .reset_n    (h_reset_n     ),
+	      .clk        (mclk          ),
+	      .cs         (sw_wr_en_3   ),
+	      .we         (sw_be         ),		 
+	      .data_in    (sw_reg_wdata  ),
+	      
+	      //List of Outs
+	      .data_out   (reg_3        )
+	      );
+
+
+pwm_cfg_dglitch u_dglitch_3 (
+		  .mclk           (mclk               ),
+          .h_reset_n      (h_reset_n          ),
+
+          .enb            (cfg_pwm_enb        ), 
+          .cfg_update     (pwm_cfg_update     ), 
+          .cfg_dupdate    (cfg_pwm_dupdate    ), 
+          .reg_in         (reg_3              ),
+          .reg_out        (pwm_cfg3           )    
+
+
+          );
+
+always_comb
+begin 
+  reg_out [31:0] = 32'h0;
+
+  case (sw_addr [1:0])
+    2'b00    : reg_out [31:0] = reg_0 [31:0];     
+    2'b01    : reg_out [31:0] = reg_1 [31:0];    
+    2'b10    : reg_out [31:0] = reg_2 [31:0];     
+    2'b11    : reg_out [31:0] = reg_3 [31:0];    
+    default  : reg_out [31:0] = 32'h0;
+  endcase
+end
+
+endmodule

diff --git a/verilog/rtl/pwm/src/pwm_cfg_dglitch.sv b/verilog/rtl/pwm/src/pwm_cfg_dglitch.sv
new file mode 100644
index 0000000..87d536b
--- /dev/null
+++ b/verilog/rtl/pwm/src/pwm_cfg_dglitch.sv

@@ -0,0 +1,37 @@
+
+/*************************************************************
+  This block added to block abort changing of config during PWM config.
+  pwm config will be update only in following condition
+  1. When pwm is in disable condition
+  2. When disable_update = 0 and cfg_update = 1
+*************************************************************/
+
+
+module pwm_cfg_dglitch  (
+                       // System Signals
+                       // Inputs
+		               input  logic        mclk           ,
+                       input  logic        h_reset_n      ,
+                       input  logic        enb            , // Operation Enable 
+                       input  logic        cfg_update     , // Update config
+                       input  logic        cfg_dupdate    , // Disable config update
+                       input  logic [31:0] reg_in         ,
+                       output logic [31:0] reg_out            
+
+                       );
+
+
+
+always @(posedge mclk or negedge h_reset_n) begin 
+   if ( ~h_reset_n ) begin
+        reg_out <= 'h0;
+   end else begin
+       if(!cfg_dupdate) begin
+          if(!enb || cfg_update) begin
+             reg_out <= reg_in;
+          end
+       end 
+   end
+end
+
+endmodule

diff --git a/verilog/rtl/pwm/src/pwm_core.sv b/verilog/rtl/pwm/src/pwm_core.sv
new file mode 100644
index 0000000..b0bb234
--- /dev/null
+++ b/verilog/rtl/pwm/src/pwm_core.sv

@@ -0,0 +1,146 @@
+//////////////////////////////////////////////////////////////////////////////
+// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileContributor: Created by Dinesh Annayya <dinesh.annayya@gmail.com>
+//
+//////////////////////////////////////////////////////////////////////
+module pwm_core (
+
+	input  logic          h_reset_n         ,
+	input  logic          mclk              ,
+
+// Reg Bus Interface Signal
+    input logic           reg_cs            ,
+    input logic           reg_wr            ,
+    input logic [1:0]     reg_addr          ,
+    input logic [31:0]    reg_wdata         ,
+    input logic [3:0]     reg_be            ,
+
+    // Outputs
+    output logic [31:0]   reg_rdata         ,
+    output logic          reg_ack           ,
+
+    input   logic         cfg_pwm_enb       , // pwm operation enable
+    input   logic         cfg_pwm_run       , // pwm operation Run
+    input   logic         cfg_pwm_dupdate   , // Disable Config update
+    input   logic [7:0]   pad_gpio          ,
+	output  logic         pwm_wfm_o         ,
+	output  logic         pwm_os_done          ,
+	output  logic         pwm_ovflow        ,
+    output  logic         gpio_tgr          
+
+
+
+);
+
+logic [3:0]               cfg_pwm_scale     ; // pwm clock scaling
+logic                     cfg_pwm_oneshot   ; // pwm OneShot mode
+logic                     cfg_pwm_frun      ; // pwm is free running
+logic                     cfg_pwm_gpio_enb  ; // pwm gpio based trigger
+logic                     cfg_pwm_gpio_edge ; // pwm gpio based trigger edge
+logic [2:0]               cfg_pwm_gpio_sel  ; // gpio Selection
+logic                     cfg_pwm_hold      ; // Hold data pwm data During pwm Disable
+logic                     cfg_pwm_inv       ; // invert output
+logic                     cfg_pwm_zeropd    ; // Reset on pmw_cnt match to period
+logic [1:0]               cfg_pwm_mode      ; // pwm Pulse Generation mode
+logic                     cfg_comp0_center  ; // Compare cnt at comp0 center
+logic                     cfg_comp1_center  ; // Compare cnt at comp1 center
+logic                     cfg_comp2_center  ; // Compare cnt at comp2 center
+logic                     cfg_comp3_center  ; // Compare cnt at comp3 center
+logic [15:0]              cfg_pwm_period    ; // pwm period
+logic [15:0]              cfg_pwm_comp0     ; // compare0
+logic [15:0]              cfg_pwm_comp1     ; // compare1
+logic [15:0]              cfg_pwm_comp2     ; // compare2
+logic [15:0]              cfg_pwm_comp3     ; // compare3
+
+
+
+
+pwm_blk_reg  u_reg (
+		               .mclk                (mclk                ),
+                       .h_reset_n           (h_reset_n           ),
+                                                               
+                       .reg_cs              (reg_cs              ),
+                       .reg_wr              (reg_wr              ),
+                       .reg_addr            (reg_addr            ),
+                       .reg_wdata           (reg_wdata           ),
+                       .reg_be              (reg_be              ),
+                                                               
+                       .reg_rdata           (reg_rdata           ),
+                       .reg_ack             (reg_ack             ),
+                                                               
+                       .cfg_pwm_enb         (cfg_pwm_enb         ), // PWM operation enable
+                       .cfg_pwm_dupdate     (cfg_pwm_dupdate     ), // Disable Config update
+                       .pwm_cfg_update      (pwm_ovflow          ), // Update the pwm config on roll-over or completion
+                                                               
+                       .cfg_pwm_scale       (cfg_pwm_scale       ), // clock scaling
+                       .cfg_pwm_oneshot     (cfg_pwm_oneshot     ), // PWM OneShot mode
+                       .cfg_pwm_frun        (cfg_pwm_frun        ), // PWM is free running
+                       .cfg_pwm_gpio_enb    (cfg_pwm_gpio_enb    ), // PWM GPIO based trigger enable
+                       .cfg_pwm_gpio_edge   (cfg_pwm_gpio_edge   ), // PWM GPIO based trigger edge
+                       .cfg_pwm_gpio_sel    (cfg_pwm_gpio_sel    ), // GPIO Selection
+                       .cfg_pwm_hold        (cfg_pwm_hold        ), // Hold data PWM data During PWM Disable
+                       .cfg_pwm_inv         (cfg_pwm_inv         ), // invert output
+                       .cfg_pwm_zeropd      (cfg_pwm_zeropd      ), // Reset on pmw_cnt match to period
+                       .cfg_pwm_mode        (cfg_pwm_mode        ), // PWM Pulse Generation mode
+                       .cfg_comp0_center    (cfg_comp0_center    ), // Compare cnt at comp0 center
+                       .cfg_comp1_center    (cfg_comp1_center    ), // Compare cnt at comp1 center
+                       .cfg_comp2_center    (cfg_comp2_center    ), // Compare cnt at comp2 center
+                       .cfg_comp3_center    (cfg_comp3_center    ), // Compare cnt at comp3 center
+                       .cfg_pwm_period      (cfg_pwm_period      ), // PWM period
+                       .cfg_pwm_comp0       (cfg_pwm_comp0       ), // compare0
+                       .cfg_pwm_comp1       (cfg_pwm_comp1       ), // compare1
+                       .cfg_pwm_comp2       (cfg_pwm_comp2       ), // compare2
+                       .cfg_pwm_comp3       (cfg_pwm_comp3       )  // compare3
+
+                ); 
+
+
+
+pwm  u_pwm     (
+	                   .h_reset_n             (h_reset_n             ),
+	                   .mclk                  (mclk                  ),
+                                                                    
+	                   .pwm_wfm_o             (pwm_wfm_o             ),
+	                   .pwm_os_done           (pwm_os_done           ),
+	                   .pwm_ovflow_pe         (pwm_ovflow            ),
+                       .gpio_tgr              (gpio_tgr              ),
+                                                                    
+                       .pad_gpio              (pad_gpio              ),
+                                                                    
+                       .cfg_pwm_enb           (cfg_pwm_enb           ), 
+                       .cfg_pwm_run           (cfg_pwm_run           ), 
+                       .cfg_pwm_scale         (cfg_pwm_scale         ), 
+                       .cfg_pwm_oneshot       (cfg_pwm_oneshot       ), 
+                       .cfg_pwm_frun          (cfg_pwm_frun          ), 
+                       .cfg_pwm_gpio_enb      (cfg_pwm_gpio_enb      ), 
+                       .cfg_pwm_gpio_edge     (cfg_pwm_gpio_edge     ), 
+                       .cfg_pwm_gpio_sel      (cfg_pwm_gpio_sel      ), 
+                       .cfg_pwm_hold          (cfg_pwm_hold          ), 
+                       .cfg_pwm_inv           (cfg_pwm_inv           ), 
+                       .cfg_pwm_zeropd        (cfg_pwm_zeropd        ), 
+                       .cfg_pwm_mode          (cfg_pwm_mode          ), 
+                       .cfg_comp0_center      (cfg_comp0_center      ), 
+                       .cfg_comp1_center      (cfg_comp1_center      ), 
+                       .cfg_comp2_center      (cfg_comp2_center      ), 
+                       .cfg_comp3_center      (cfg_comp3_center      ), 
+                       .cfg_pwm_period        (cfg_pwm_period        ), 
+                       .cfg_pwm_comp0         (cfg_pwm_comp0         ), 
+                       .cfg_pwm_comp1         (cfg_pwm_comp1         ), 
+                       .cfg_pwm_comp2         (cfg_pwm_comp2         ), 
+                       .cfg_pwm_comp3         (cfg_pwm_comp3         )  
+              );
+
+endmodule

diff --git a/verilog/rtl/pwm/src/pwm_glbl_reg.sv b/verilog/rtl/pwm/src/pwm_glbl_reg.sv
new file mode 100644
index 0000000..f3d9ae6
--- /dev/null
+++ b/verilog/rtl/pwm/src/pwm_glbl_reg.sv

@@ -0,0 +1,228 @@
+//////////////////////////////////////////////////////////////////////////////
+// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileContributor: Created by Dinesh Annayya <dinesh.annayya@gmail.com>
+//
+//////////////////////////////////////////////////////////////////////
+////                                                              ////
+////  PWM Register                                                ////
+////                                                              ////
+////  This file is part of the riscduino cores project            ////
+////  https://github.com/dineshannayya/riscduino.git              ////
+////                                                              ////
+////  Description                                                 ////
+////                                                              ////
+////  To Do:                                                      ////
+////    nothing                                                   ////
+////                                                              ////
+////  Author(s):                                                  ////
+////      - Dinesh Annayya, dinesha@opencores.org                 ////
+////                                                              ////
+////  Revision :                                                  ////
+////    0.1 - 15th Aug 2022, Dinesh A                             ////
+////          initial version                                     ////
+////    0.2 - 13th Sept 2022, Dinesh A                            ////
+////          Change Register to PWM Based                        ////
+//////////////////////////////////////////////////////////////////////
+//
+module pwm_glbl_reg  (
+                       // System Signals
+                       // Inputs
+		               input logic           mclk               ,
+                       input logic           h_reset_n          ,
+
+		               // Reg Bus Interface Signal
+                       input logic           reg_cs             ,
+                       input logic           reg_wr             ,
+                       input logic [1:0]     reg_addr           ,
+                       input logic [31:0]    reg_wdata          ,
+                       input logic [3:0]     reg_be             ,
+
+                       // Outputs
+                       output logic [31:0]   reg_rdata          ,
+                       output logic          reg_ack            ,
+
+                       output logic [5:0]    cfg_pwm_enb        , // PWM operation enable
+                       output logic [5:0]    cfg_pwm_run        , // PWM operation Run
+                       output logic [5:0]    cfg_pwm_dupdate    , // Disable Config update
+
+                       input logic [5:0]     pwm_os_done        , // Indicate oneshot sequence over
+                       input logic [5:0]     pwm_ovflow         , // pwm sequence cross over
+                       input logic [5:0]     gpio_tgr           , // Enable PWM based on trigger
+
+                       output logic          pwm_intr 
+                       
+
+                ); 
+
+//-----------------------------------------------------------------------
+// Internal Wire Declarations
+//-----------------------------------------------------------------------
+
+logic          sw_rd_en        ;
+logic          sw_wr_en        ;
+logic [1:0]    sw_addr         ; // addressing 16 registers
+logic [31:0]   sw_reg_wdata    ;
+logic [3:0]    sw_be           ;
+
+logic [31:0]   reg_out         ;
+logic [31:0]   reg_0           ; // CONFIG - Unused
+logic [31:0]   reg_1           ; // PWM-REG-0
+logic [31:0]   reg_2           ; // PWM-REG-1
+logic [31:0]   reg_3           ; // PWM-REG-2
+
+assign       sw_addr       = reg_addr;
+assign       sw_rd_en      = reg_cs & !reg_wr;
+assign       sw_wr_en      = reg_cs & reg_wr;
+assign       sw_be         = reg_be;
+assign       sw_reg_wdata  = reg_wdata;
+
+//-----------------------------------------------------------------------
+// register read enable and write enable decoding logic
+//-----------------------------------------------------------------------
+wire   sw_wr_en_0 = sw_wr_en  & (sw_addr == 2'h0);
+wire   sw_wr_en_1 = sw_wr_en  & (sw_addr == 2'h1);
+wire   sw_wr_en_2 = sw_wr_en  & (sw_addr == 2'h2);
+wire   sw_wr_en_3 = sw_wr_en  & (sw_addr == 2'h3);
+
+wire   sw_rd_en_0 = sw_rd_en  & (sw_addr == 2'h0);
+wire   sw_rd_en_1 = sw_rd_en  & (sw_addr == 2'h1);
+wire   sw_rd_en_2 = sw_rd_en  & (sw_addr == 2'h2);
+wire   sw_rd_en_3 = sw_rd_en  & (sw_addr == 2'h3);
+
+
+always @ (posedge mclk or negedge h_reset_n)
+begin : preg_out_Seq
+   if (h_reset_n == 1'b0) begin
+      reg_rdata  <= 'h0;
+      reg_ack    <= 1'b0;
+   end else if (reg_cs && !reg_ack) begin
+      reg_rdata  <= reg_out;
+      reg_ack    <= 1'b1;
+   end else begin
+      reg_ack    <= 1'b0;
+   end
+end
+
+
+//-----------------------------------------
+// PWM Enable Generation
+//----------------------------------------
+
+assign cfg_pwm_enb      = {3'b0,reg_0[2:0]};
+assign cfg_pwm_run      = {3'b0,reg_0[10:8]};
+assign cfg_pwm_dupdate  = {3'b0,reg_0[18:16]};
+
+//------------------------------------------------------------------------
+// Design wise has avoided the pwm_os_done & gpio_tgr occur at same cycle
+//------------------------------------------------------------------------
+logic [2:0] reg_0_0;
+always @ (posedge mclk or negedge h_reset_n)
+begin 
+   if (h_reset_n == 1'b0) begin
+      reg_0_0[2:0]  <= 'h0;
+   end else if (reg_cs && sw_wr_en_0 && sw_be[0] && reg_ack) begin
+      reg_0_0[2:0]  <= sw_reg_wdata[2:0] ;
+   end
+end
+assign reg_0[2:0] = reg_0_0; // Modified due to iverilog issue
+assign reg_0[7:3] = 'h0;
+
+logic [2:0] reg_0_1;
+always @ (posedge mclk or negedge h_reset_n)
+begin 
+   if (h_reset_n == 1'b0) begin
+      reg_0_1[2:0]  <= 'h0;
+   end else if (reg_cs && sw_wr_en_0 && sw_be[1] && reg_ack) begin
+      reg_0_1[2:0]  <= sw_reg_wdata[10:8] | gpio_tgr;
+   end else begin
+      reg_0_1[2:0]  <= (reg_0_1[2:0] | gpio_tgr) ^ pwm_os_done;
+   end
+end
+assign reg_0[10:8] = reg_0_1; // Modified due to iverilog issue
+assign reg_0[15:11] = 'h0;
+
+logic [2:0] reg_0_2;
+always @ (posedge mclk or negedge h_reset_n)
+begin 
+   if (h_reset_n == 1'b0) begin
+      reg_0_2[2:0]  <= 'h0;
+   end else if (reg_cs && sw_wr_en_0 && sw_be[2] && reg_ack) begin
+      reg_0_2[2:0]  <= sw_reg_wdata[18:16] ;
+   end
+end
+assign reg_0[18:16] = reg_0_2; // Modified due to iverilog issue
+assign reg_0[31:19] = 'h0;
+
+//-----------------------------------------------------------------------
+// Logic for PWM-1 Config - Reserved
+//-----------------------------------------------------------------------
+assign  reg_1 = 'h0;
+
+
+//-----------------------------------------------------------------------
+// Reg-2: Interrupt Mask
+//-----------------------------------------------------------------------
+
+generic_register #(6,6'h0  ) u_reg_2 (
+	      .we            ({6{sw_wr_en_2 & 
+                             reg_ack    & 
+                             sw_be[0]   }}  ),		 
+	      .data_in       (sw_reg_wdata[5:0] ),
+	      .reset_n       (h_reset_n         ),
+	      .clk           (mclk              ),
+	      
+	      //List of Outs
+	      .data_out      (reg_2[5:0]        )
+          );
+
+assign reg_2[31:6] = 'h0;
+//-----------------------------------------------------------------------
+// Reg-3: Interrupt Status
+//-----------------------------------------------------------------------
+
+assign  pwm_intr     = |(reg_2[5:0] & reg_3[5:0]); 
+
+generic_intr_stat_reg #(.WD(6),
+	                .RESET_DEFAULT(0)) u_reg4 (
+		 //inputs
+		 .clk         (mclk               ),
+		 .reset_n     (h_reset_n          ),
+         .reg_we      ({6{sw_wr_en_3 & 
+                          reg_ack    & 
+                          sw_be[0]}}),	      
+		 .reg_din     ( sw_reg_wdata[5:0]  ),
+		 .hware_req   ( pwm_ovflow         ), 
+		 
+		 //outputs
+		 .data_out    ( reg_3[5:0]         )
+	      );
+
+assign reg_3[31:6] = 'h0;
+
+always_comb
+begin 
+  reg_out [31:0] = 32'h0;
+
+  case (sw_addr [1:0])
+    2'b00    : reg_out [31:0] = reg_0 [31:0];     
+    2'b01    : reg_out [31:0] = reg_1 [31:0];    
+    2'b10    : reg_out [31:0] = reg_2 [31:0];     
+    2'b11    : reg_out [31:0] = reg_3 [31:0];    
+    default  : reg_out [31:0] = 32'h0;
+  endcase
+end
+
+endmodule

diff --git a/verilog/rtl/pwm/src/pwm_top.sv b/verilog/rtl/pwm/src/pwm_top.sv
new file mode 100644
index 0000000..7e914d2
--- /dev/null
+++ b/verilog/rtl/pwm/src/pwm_top.sv

@@ -0,0 +1,320 @@
+//////////////////////////////////////////////////////////////////////////////
+// SPDX-FileCopyrightText: 2021 , Dinesh Annayya                          
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileContributor: Created by Dinesh Annayya <dinesha@opencores.org>
+//
+//////////////////////////////////////////////////////////////////////
+////                                                              ////
+////  PWM Top                                                     ////
+////                                                              ////
+////  This file is part of the riscduino cores project            ////
+////  https://github.com/dineshannayya/riscduino.git              ////
+////                                                              ////
+////  Description                                                 ////
+///     Includes 6 PWM                                            ////
+////                                                              ////
+////  To Do:                                                      ////
+////    nothing                                                   ////
+////                                                              ////
+////  Author(s):                                                  ////
+////      - Dinesh Annayya, dinesha@opencores.org                 ////
+////                                                              ////
+////  Revision :                                                  ////
+////    0.1 - 15th Aug 2022, Dinesh A                             ////
+////          initial version                                     ////
+////    0.2 - 14th Sept 2022, Dinesh A                            ////
+////          Improved PWM logic                                  ////
+//////////////////////////////////////////////////////////////////////
+
+module pwm_top  (
+                       // System Signals
+                       // Inputs
+		               input logic           mclk,
+                       input logic           h_reset_n,
+
+		               // Reg Bus Interface Signal
+                       input logic           reg_cs,
+                       input logic           reg_wr,
+                       input logic [4:0]     reg_addr,
+                       input logic [31:0]    reg_wdata,
+                       input logic [3:0]     reg_be,
+
+                       // Outputs
+                       output logic [31:0]   reg_rdata,
+                       output logic          reg_ack,
+
+                       input  logic [7:0]    pad_gpio,
+                       output logic [5:0]    pwm_wfm ,
+                       output logic          pwm_intr 
+
+                ); 
+
+//---------------------------------------------------
+// 3 PWM variabled
+//---------------------------------------------------
+
+logic [5:0]    cfg_pwm_enb      ;
+logic [5:0]    cfg_pwm_run      ;
+logic [5:0]    cfg_pwm_dupdate  ;
+logic [5:0]    pwm_os_done      ;
+logic [5:0]    pwm_ovflow       ;
+logic [5:0]    gpio_tgr         ;
+logic          reg_cs_glbl      ;
+logic [5:0]    reg_cs_pwm       ;
+logic          reg_ack_glbl     ;
+logic [31:0]   reg_rdata_glbl   ;
+logic          reg_ack_pwm0     ;
+logic [31:0]   reg_rdata_pwm0   ;
+logic          reg_ack_pwm1     ;
+logic [31:0]   reg_rdata_pwm1   ;
+logic          reg_ack_pwm2     ;
+logic [31:0]   reg_rdata_pwm2   ;
+logic          reg_ack_pwm3     ;
+logic [31:0]   reg_rdata_pwm3   ;
+logic          reg_ack_pwm4     ;
+logic [31:0]   reg_rdata_pwm4   ;
+logic          reg_ack_pwm5     ;
+logic [31:0]   reg_rdata_pwm5   ;
+
+//------------------------------------------------------
+// Register Map Decoding
+
+`define SEL_GLBL    3'b000   // GLOBAL REGISTER
+`define SEL_PWM0    3'b001   // PWM-0
+`define SEL_PWM1    3'b010   // PWM-1
+`define SEL_PWM2    3'b011   // PWM-2
+`define SEL_PWM3    3'b100   // PWM-3
+`define SEL_PWM4    3'b101   // PWM-4
+`define SEL_PWM5    3'b110   // PWM-5
+
+assign reg_rdata = (reg_addr[4:2] == `SEL_GLBL)  ? {reg_rdata_glbl} : 
+	               (reg_addr[4:2] == `SEL_PWM0)  ? {reg_rdata_pwm0} :
+	               (reg_addr[4:2] == `SEL_PWM1)  ? {reg_rdata_pwm1} :
+	               (reg_addr[4:2] == `SEL_PWM2)  ? {reg_rdata_pwm2} :'h0;
+
+assign reg_ack   = (reg_addr[4:2] == `SEL_GLBL)  ? reg_ack_glbl   : 
+	               (reg_addr[4:2] == `SEL_PWM0)  ? reg_ack_pwm0   : 
+	               (reg_addr[4:2] == `SEL_PWM1)  ? reg_ack_pwm1   : 
+	               (reg_addr[4:2] == `SEL_PWM2)  ? reg_ack_pwm2   : 'h0;
+
+assign reg_cs_glbl    = (reg_addr[4:2] == `SEL_GLBL) ? reg_cs : 1'b0;
+assign reg_cs_pwm[0]  = (reg_addr[4:2] == `SEL_PWM0) ? reg_cs : 1'b0;
+assign reg_cs_pwm[1]  = (reg_addr[4:2] == `SEL_PWM1) ? reg_cs : 1'b0;
+assign reg_cs_pwm[2]  = (reg_addr[4:2] == `SEL_PWM2) ? reg_cs : 1'b0;
+assign reg_cs_pwm[3]  = (reg_addr[4:2] == `SEL_PWM3) ? reg_cs : 1'b0;
+assign reg_cs_pwm[4]  = (reg_addr[4:2] == `SEL_PWM4) ? reg_cs : 1'b0;
+assign reg_cs_pwm[5]  = (reg_addr[4:2] == `SEL_PWM5) ? reg_cs : 1'b0;
+
+pwm_glbl_reg  u_glbl_reg (
+		       .mclk             (mclk                ),
+               .h_reset_n        (h_reset_n           ),
+
+		       // Reg Bus Interface Signal
+               .reg_cs           (reg_cs_glbl         ),
+               .reg_wr           (reg_wr              ),
+               .reg_addr         (reg_addr[1:0]       ),
+               .reg_wdata        (reg_wdata           ),
+               .reg_be           (reg_be              ),
+
+               // Outputs
+               .reg_rdata        (reg_rdata_glbl      ),
+               .reg_ack          (reg_ack_glbl        ),
+
+               .cfg_pwm_enb      (cfg_pwm_enb         ),
+               .cfg_pwm_run      (cfg_pwm_run         ),
+               .cfg_pwm_dupdate  (cfg_pwm_dupdate     ),
+
+               .pwm_os_done      (pwm_os_done         ),
+               .pwm_ovflow       (pwm_ovflow          ),
+               .gpio_tgr         (gpio_tgr            ),
+
+                .pwm_intr        (pwm_intr            )
+
+
+                ); 
+
+
+// 6 PWM Waveform Generator
+
+pwm_core u_pwm_0(
+
+	.h_reset_n         (h_reset_n          ),
+	.mclk              (mclk               ),
+
+    .reg_cs            (reg_cs_pwm[0]      ),
+    .reg_wr            (reg_wr             ),
+    .reg_addr          (reg_addr[1:0]      ),
+    .reg_wdata         (reg_wdata          ),
+    .reg_be            (reg_be             ),
+                                         
+    .reg_rdata         (reg_rdata_pwm0     ),
+    .reg_ack           (reg_ack_pwm0       ),
+                                         
+    .cfg_pwm_enb       (cfg_pwm_enb[0]     ), // pwm operation enable
+    .cfg_pwm_run       (cfg_pwm_run[0]     ), // pwm operation enable
+    .cfg_pwm_dupdate   (cfg_pwm_dupdate[0] ), // Disable Config update
+    .pad_gpio          (pad_gpio           ),
+	.pwm_os_done       (pwm_os_done[0]     ),
+	.pwm_ovflow        (pwm_ovflow[0]      ),
+    .gpio_tgr          (gpio_tgr[0]        ),
+	.pwm_wfm_o         (pwm_wfm[0]       )
+
+);
+
+pwm_core u_pwm_1(
+
+	.h_reset_n         (h_reset_n          ),
+	.mclk              (mclk               ),
+
+    .reg_cs            (reg_cs_pwm[1]      ),
+    .reg_wr            (reg_wr             ),
+    .reg_addr          (reg_addr[1:0]      ),
+    .reg_wdata         (reg_wdata          ),
+    .reg_be            (reg_be             ),
+                                         
+    .reg_rdata         (reg_rdata_pwm1     ),
+    .reg_ack           (reg_ack_pwm1       ),
+                                         
+    .cfg_pwm_enb       (cfg_pwm_enb[1]     ), // pwm operation enable
+    .cfg_pwm_run       (cfg_pwm_run[1]     ), // pwm operation enable
+    .cfg_pwm_dupdate   (cfg_pwm_dupdate[1] ), // Disable Config update
+    .pad_gpio          (pad_gpio           ),
+	.pwm_os_done       (pwm_os_done[1]     ),
+	.pwm_ovflow        (pwm_ovflow[1]      ),
+    .gpio_tgr          (gpio_tgr[1]        ),
+	.pwm_wfm_o         (pwm_wfm[1]       )
+
+);
+pwm_core u_pwm_2(
+
+	.h_reset_n         (h_reset_n          ),
+	.mclk              (mclk               ),
+
+    .reg_cs            (reg_cs_pwm[2]      ),
+    .reg_wr            (reg_wr             ),
+    .reg_addr          (reg_addr[1:0]      ),
+    .reg_wdata         (reg_wdata          ),
+    .reg_be            (reg_be             ),
+                                         
+    .reg_rdata         (reg_rdata_pwm2     ),
+    .reg_ack           (reg_ack_pwm2       ),
+                                         
+    .cfg_pwm_enb       (cfg_pwm_enb[2]     ), // pwm operation enable
+    .cfg_pwm_run       (cfg_pwm_run[2]     ), // pwm operation enable
+    .cfg_pwm_dupdate   (cfg_pwm_dupdate[2] ), // Disable Config update
+    .pad_gpio          (pad_gpio           ),
+	.pwm_os_done       (pwm_os_done[2]     ),
+	.pwm_ovflow        (pwm_ovflow[2]      ),
+    .gpio_tgr          (gpio_tgr[2]        ),
+	.pwm_wfm_o         (pwm_wfm[2]       )
+
+);
+
+
+/***
+pwm_core u_pwm_3(
+
+	.h_reset_n         (h_reset_n          ),
+	.mclk              (mclk               ),
+
+    .reg_cs            (reg_cs_pwm[3]      ),
+    .reg_wr            (reg_wr             ),
+    .reg_addr          (reg_addr[1:0]      ),
+    .reg_wdata         (reg_wdata          ),
+    .reg_be            (reg_be             ),
+                                         
+    .reg_rdata         (reg_rdata_pwm3     ),
+    .reg_ack           (reg_ack_pwm3       ),
+                                         
+    .cfg_pwm_enb       (cfg_pwm_enb[3]     ), // pwm operation enable
+    .cfg_pwm_run       (cfg_pwm_run[3]     ), // pwm operation enable
+    .cfg_pwm_dupdate   (cfg_pwm_dupdate[3] ), // Disable Config update
+    .pad_gpio          (pad_gpio           ),
+	.pwm_os_done       (pwm_os_done[3]     ),
+	.pwm_ovflow        (pwm_ovflow[3]      ),
+    .gpio_tgr          (gpio_tgr[3]        ),
+	.pwm_wfm_o         (pwm_wfm[3]       )
+
+);
+***/
+assign pwm_wfm[3]     = pwm_wfm[0];
+assign pwm_os_done[3] = 1'b0;
+assign pwm_ovflow[3]  = 1'b0;
+assign gpio_tgr[3]    = 1'b0;
+
+/****
+pwm_core u_pwm_4(
+
+	.h_reset_n         (h_reset_n          ),
+	.mclk              (mclk               ),
+
+    .reg_cs            (reg_cs_pwm[4]      ),
+    .reg_wr            (reg_wr             ),
+    .reg_addr          (reg_addr[1:0]      ),
+    .reg_wdata         (reg_wdata          ),
+    .reg_be            (reg_be             ),
+                                         
+    .reg_rdata         (reg_rdata_pwm4     ),
+    .reg_ack           (reg_ack_pwm4       ),
+                                         
+    .cfg_pwm_enb       (cfg_pwm_enb[4]     ), // pwm operation enable
+    .cfg_pwm_run       (cfg_pwm_run[4]     ), // pwm operation enable
+    .cfg_pwm_dupdate   (cfg_pwm_dupdate[4] ), // Disable Config update
+    .pad_gpio          (pad_gpio           ),
+	.pwm_os_done       (pwm_os_done[4]     ),
+	.pwm_ovflow        (pwm_ovflow[4]      ),
+    .gpio_tgr          (gpio_tgr[4]        ),
+	.pwm_wfm_o         (pwm_wfm[4]       )
+
+);
+***/
+assign pwm_wfm[4] = pwm_wfm[1];
+assign pwm_os_done[4] = 1'b0;
+assign pwm_ovflow[4]  = 1'b0;
+assign gpio_tgr[4]    = 1'b0;
+
+/***
+pwm_core u_pwm_5(
+
+	.h_reset_n         (h_reset_n          ),
+	.mclk              (mclk               ),
+
+    .reg_cs            (reg_cs_pwm[5]      ),
+    .reg_wr            (reg_wr             ),
+    .reg_addr          (reg_addr[1:0]      ),
+    .reg_wdata         (reg_wdata          ),
+    .reg_be            (reg_be             ),
+                                         
+    .reg_rdata         (reg_rdata_pwm5     ),
+    .reg_ack           (reg_ack_pwm5       ),
+                                         
+    .cfg_pwm_enb       (cfg_pwm_enb[5]     ), // pwm operation enable
+    .cfg_pwm_run       (cfg_pwm_run[5]     ), // pwm operation enable
+    .cfg_pwm_dupdate   (cfg_pwm_dupdate[5] ), // Disable Config update
+    .pad_gpio          (pad_gpio           ),
+	.pwm_os_done       (pwm_os_done[5]     ),
+	.pwm_ovflow        (pwm_ovflow[5]      ),
+    .gpio_tgr          (gpio_tgr[5]        ),
+	.pwm_wfm_o         (pwm_wfm[5]       )
+
+);
+
+**/
+assign pwm_wfm[5] = pwm_wfm[2];
+assign pwm_os_done[5] = 1'b0;
+assign pwm_ovflow[5]  = 1'b0;
+assign gpio_tgr[5]    = 1'b0;
+
+endmodule

diff --git a/verilog/rtl/sspim/src/sspim_top.sv b/verilog/rtl/sspim/src/sspim_top.sv
index 6f0f17f..97a3cae 100755
--- a/verilog/rtl/sspim/src/sspim_top.sv
+++ b/verilog/rtl/sspim/src/sspim_top.sv

@@ -132,6 +132,13 @@
 logic                cfg_cpol                      ; // spi clock idle phase
 logic                cfg_cpha                      ; // spi data sample and lanch phase
 
+logic                shift                         ;
+logic                sample                        ;
+logic                sck_int                       ;
+logic                sck_active                    ;
+logic                cs_int_n                      ;
+logic                load_byte                     ;
+
 sspim_if  u_spi_if
           (
           . clk                         (clk                          ), 

diff --git a/verilog/rtl/pinmux/src/timer.sv b/verilog/rtl/timer/src/timer.sv
similarity index 100%
rename from verilog/rtl/pinmux/src/timer.sv
rename to verilog/rtl/timer/src/timer.sv


diff --git a/verilog/rtl/pinmux/src/timer_reg.sv b/verilog/rtl/timer/src/timer_reg.sv
similarity index 100%
rename from verilog/rtl/pinmux/src/timer_reg.sv
rename to verilog/rtl/timer/src/timer_reg.sv


diff --git a/verilog/rtl/pinmux/src/timer_top.sv b/verilog/rtl/timer/src/timer_top.sv
similarity index 98%
rename from verilog/rtl/pinmux/src/timer_top.sv
rename to verilog/rtl/timer/src/timer_top.sv
index 127d62f..c6aa3f9 100644
--- a/verilog/rtl/pinmux/src/timer_top.sv
+++ b/verilog/rtl/timer/src/timer_top.sv

@@ -53,6 +53,7 @@
                        output logic          reg_ack,
 
                        output logic          pulse_1ms,
+                       output logic          pulse_1us,
                        output logic [2:0]    timer_intr 
 
                 ); 
@@ -67,7 +68,6 @@
 
 /* clock pulse */
 //********************************************************
-logic           pulse_1us               ; // 1 UsSecond Pulse for waveform Generator
 logic           pulse_1s                ; // 1Second Pulse for waveform Generator
 logic [9:0]     cfg_pulse_1us           ; // 1us pulse generation config
 

diff --git a/verilog/rtl/uart/src/uart_cfg.sv b/verilog/rtl/uart/src/uart_cfg.sv
index ca4dea6..14297c4 100644
--- a/verilog/rtl/uart/src/uart_cfg.sv
+++ b/verilog/rtl/uart/src/uart_cfg.sv

@@ -271,17 +271,17 @@
     4'b0010 : reg_out [7:0] = reg_2 [7:0];     
     4'b0011 : reg_out [7:0] = reg_3 [7:0];    
     4'b0100 : reg_out [7:0] = reg_4 [7:0];    
-    4'b0101 : reg_out [7:0] = reg_5 [7:0];    
+    4'b0101 : reg_out [7:0] = 'h0;
     4'b0110 : reg_out [7:0] = reg_6 [7:0];    
     4'b0111 : reg_out [7:0] = reg_7 [7:0];    
     4'b1000 : reg_out [7:0] = reg_8 [7:0];    
-    4'b1001 : reg_out [7:0] = reg_9 [7:0];    
-    4'b1010 : reg_out [7:0] = reg_10 [7:0];   
-    4'b1011 : reg_out [7:0] = reg_11 [7:0];   
-    4'b1100 : reg_out [7:0] = reg_12 [7:0];   
-    4'b1101 : reg_out [7:0] = reg_13 [7:0];
-    4'b1110 : reg_out [7:0] = reg_14 [7:0];
-    4'b1111 : reg_out [7:0] = reg_15 [7:0]; 
+    4'b1001 : reg_out [7:0] = 'h0;
+    4'b1010 : reg_out [7:0] = 'h0;
+    4'b1011 : reg_out [7:0] = 'h0;
+    4'b1100 : reg_out [7:0] = 'h0;
+    4'b1101 : reg_out [7:0] = 'h0;
+    4'b1110 : reg_out [7:0] = 'h0;
+    4'b1111 : reg_out [7:0] = 'h0;
   endcase
 end
 

diff --git a/verilog/rtl/uart/src/uart_core.sv b/verilog/rtl/uart/src/uart_core.sv
index 653e285..b9b0186 100644
--- a/verilog/rtl/uart/src/uart_core.sv
+++ b/verilog/rtl/uart/src/uart_core.sv

@@ -192,6 +192,7 @@
 //###############################################################
 
 wire line_clk_16x_in;
+wire line_clk_16x;
 
 // OpenSource CTS tool does not work with buffer as source point
 // changed buf to max with select tied=0

diff --git a/verilog/rtl/uart2wb/src/uart2wb.sv b/verilog/rtl/uart2wb/src/uart2wb.sv
index 0bf50b3..25e6e2f 100755
--- a/verilog/rtl/uart2wb/src/uart2wb.sv
+++ b/verilog/rtl/uart2wb/src/uart2wb.sv

@@ -29,6 +29,10 @@
 ////  Author(s):                                                  ////

 ////      - Dinesh Annayya, dinesha@opencores.org                 ////

 ////                                                              ////

+////  Revision :                                                  ////

+////    0.1 - 12th Sep 2022, Dinesh A                             ////

+////          baud config auto detect for unknow system clock case////

+////          implemented specific to unknown caravel system clk  ////

 //////////////////////////////////////////////////////////////////////

 ////                                                              ////

 //// Copyright (C) 2000 Authors and OPENCORES.ORG                 ////

@@ -61,11 +65,12 @@
         input wire                  app_clk         , //  sys clock    

 

 	// configuration control

+       input wire                  cfg_auto_det     , // Auto Baud Config detect mode

        input wire                  cfg_tx_enable    , // Enable Transmit Path

        input wire                  cfg_rx_enable    , // Enable Received Path

        input wire                  cfg_stop_bit     , // 0 -> 1 Start , 1 -> 2 Stop Bits

        input wire [1:0]            cfg_pri_mod      , // priority mode, 0 -> nop, 1 -> Even, 2 -> Odd

-       input wire [11:0]	    cfg_baud_16x     , // 16x Baud clock generation

+       input wire [11:0]	       cfg_baud_16x     , // 16x Baud clock generation

 

     // Master Port

        output   wire                wbm_cyc_o        ,  // strobe/request

@@ -80,7 +85,7 @@
 

        // Status information

        output   wire               frm_error        , // framing error

-       output   wire       	    par_error        , // par error

+       output   wire       	       par_error        , // par error

 

        output   wire               baud_clk_16x     , // 16x Baud clock

 

@@ -122,9 +127,26 @@
 wire        rx_wr                  ; // Valid RXD Data

 

 wire        line_reset_n           ;

+wire        arst_ssn               ;

+wire [11:0] auto_baud_16x          ;

+wire        auto_tx_enb            ;

+wire        auto_rx_enb            ;

+

+

+wire        cfg_tx_enable_i = (cfg_auto_det) ?  auto_tx_enb: cfg_tx_enable;

+wire        cfg_rx_enable_i = (cfg_auto_det) ?  auto_rx_enb: cfg_rx_enable;

+wire [11:0] cfg_baud_16x_i  = (cfg_auto_det) ?  auto_baud_16x: cfg_baud_16x;

+

 

 assign wbm_cyc_o  = wbm_stb_o;

 

+reset_sync  u_arst_sync (

+	          .scan_mode  (1'b0         ),

+              .dclk       (app_clk      ), // Destination clock domain

+	          .arst_n     (arst_n       ), // active low async reset

+              .srst_n     (arst_ssn     )

+          );

+

 

 // Async App clock to Uart clock handling

 

@@ -148,7 +170,7 @@
 

     // Target Declaration

           .out_clk                    (app_clk),

-          .out_reset_n                (arst_n),

+          .out_reset_n                (arst_ssn),

       // Reg Bus Slave

           // output

           .out_reg_cs                 (wbm_stb_o),

@@ -163,16 +185,30 @@
    );

 

 

+

+uart_auto_det u_aut_det (

+         .mclk              (app_clk        ),

+         .reset_n           (arst_ssn       ),

+         .cfg_auto_det      (cfg_auto_det   ),

+         .rxd               (rxd            ),

+

+         .auto_baud_16x     (auto_baud_16x  ),

+         .auto_tx_enb       (auto_tx_enb    ),

+         .auto_rx_enb       (auto_rx_enb    )

+

+        );

+

+

 uart2_core u_core (  

           .arst_n            (arst_n) ,

           .app_clk           (app_clk) ,

 

 	// configuration control

-          .cfg_tx_enable      (cfg_tx_enable) , 

-          .cfg_rx_enable      (cfg_rx_enable) , 

+          .cfg_tx_enable      (cfg_tx_enable_i) , 

+          .cfg_rx_enable      (cfg_rx_enable_i) , 

           .cfg_stop_bit       (cfg_stop_bit)  , 

           .cfg_pri_mod        (cfg_pri_mod)   , 

-	  .cfg_baud_16x       (cfg_baud_16x)  ,

+	  .cfg_baud_16x           (cfg_baud_16x_i)  ,

 

     // TXD Information

           .tx_data_avail      (tx_data_avail) ,

@@ -187,10 +223,10 @@
 

        // Status information

           .frm_error          (frm_error) ,

-	  .par_error          (par_error) ,

+	      .par_error          (par_error) ,

 

-	  .baud_clk_16x       (baud_clk_16x) ,

-	  .line_reset_n       (line_reset_n),

+	      .baud_clk_16x       (baud_clk_16x) ,

+	      .line_reset_n       (line_reset_n),

 

        // Line Interface

           .rxd                (rxd) ,

@@ -201,8 +237,9 @@
 

 

 uart_msg_handler u_msg (  

-          .reset_n            (arst_n ) ,

+          .reset_n            (line_reset_n ) ,

           .sys_clk            (baud_clk_16x ) ,

+          .cfg_uart_enb       (cfg_tx_enable_i),

 

 

     // UART-TX Information


diff --git a/verilog/rtl/uart2wb/src/uart_auto_det.sv b/verilog/rtl/uart2wb/src/uart_auto_det.sv
new file mode 100644
index 0000000..1507c77
--- /dev/null
+++ b/verilog/rtl/uart2wb/src/uart_auto_det.sv

@@ -0,0 +1,163 @@
+/*********************************************************
+  This block try to auto detect the baud-16x value for incoming 9600 data.
+  Here the System clock is unknown, As in caravel user_clock can be any thing between
+  4Mhz to 60Mhz.
+
+  local counter width: 20bit should be good enough the check idle OR struck at low state
+  Assumption is 9600 Baud => 0.104ms per bit => 1.04ms per chapter (Assumpting 10 bit per character including start+ parity bit) 
+  With System clock 100Mhz, 1.04ms => 1,000,000 clock count, which can be easily check by 20 bit count => 2^20 = 1048576
+
+
+  1.Input data in double sync with local clock
+  2. State: IDLE:  Wait for High to low edge,
+                   On Fall edge, STATE = POS_EDGE
+  2. State: POS_EDGE1:
+                   Wait for Pos edge, If Pos edge detected, STATE= NEG_EDGE1
+                   increase local clk_cnt, if counter each 0xF_FFFF without transition, move to State: IDLE
+  3. State: NEG_EDGE1:
+                   Wait for Neg edge, If Neg edge detected, capture the clk_cnt => ref1_cnt; State: POS_EDGE2
+                   if counter reached 0xF_FFFF without transition, then STATE: IDLE
+
+  4. State: POS_EDGE2:
+                   Wait for Pos edge, If Pos edge detected, STATE= NEG_EDGE2
+                   increase local clk_cnt, if counter each 0xF_FFFF without transition, move to State: IDLE
+  5. State: NEG_EDGE2:
+                   Wait for Neg edge, If Neg edge detected, capture the clk_cnt => ref2_cnt; State: COMPUTE
+                   if counter reached 0xF_FFFF without transition, then STATE: IDLE
+  6. State: COMPUTE
+                  if difference between ref1_cnt and ref2_cnt less than 16, then average out and divide by 16, Sub by 2, 
+                  and update Baud Value and STOP_EDGE
+  7. STATE:STOP_EDGE  Wait pos edge, if timeout then go to IDLE, else enable tx/rx 
+ ***************************************************************************/
+module uart_auto_det (
+         input logic         mclk          ,
+         input logic         reset_n       ,
+         input logic         cfg_auto_det  ,
+         input logic         rxd           ,
+
+         output logic [11:0] auto_baud_16x  ,
+         output logic        auto_tx_enb    ,
+         output logic        auto_rx_enb    
+
+        );
+
+parameter  IDLE      = 3'b000;
+parameter  POS_EDGE1 = 3'b001;
+parameter  NEG_EDGE1 = 3'b010;
+parameter  POS_EDGE2 = 3'b011;
+parameter  NEG_EDGE2 = 3'b100;
+parameter  COMPUTE   = 3'b101;
+parameter  STOP_EDGE = 3'b110;
+parameter  AUTO_DONE = 3'b111;
+
+
+logic [19:0] clk_cnt,ref1_cnt,ref2_cnt,ref_diff,baud_16x;
+logic [2:0]  state;
+logic [2:0]  rxd_sync;
+logic        timeout;
+logic        rxd_pedge;
+logic        rxd_nedge;
+
+assign timeout = (clk_cnt == 20'hF_FFFF);
+assign rxd_pedge = (rxd_sync[2] == 1'b0) & (rxd_sync[1] == 1'b1);
+assign rxd_nedge = (rxd_sync[2] == 1'b1) & (rxd_sync[1] == 1'b0);
+assign ref_diff  = (ref1_cnt > ref2_cnt) ? (ref1_cnt - ref2_cnt) : (ref2_cnt - ref1_cnt);
+
+assign baud_16x = (((ref1_cnt + ref2_cnt) >> 1) >> 4);
+
+always @(negedge reset_n or posedge mclk)
+begin
+   if(reset_n == 1'b0) begin
+      state         <= IDLE;
+      clk_cnt       <= 'b0;
+      ref1_cnt      <= 'b0;
+      ref1_cnt      <= 'b0;
+      auto_baud_16x <= 'b0;
+      auto_tx_enb   <= 'b0;
+      auto_rx_enb   <= 'b0;
+      rxd_sync      <= 'b0;
+   end else begin
+      rxd_sync  <= {rxd_sync[1:0],rxd};
+      case(state)
+      IDLE : begin
+         if(cfg_auto_det && rxd_nedge) begin
+            clk_cnt <= 'h0;
+            state   <= POS_EDGE1;
+         end
+      end
+      POS_EDGE1 : begin
+         if(rxd_pedge) begin
+            clk_cnt  <= 'h0;
+            state    <= NEG_EDGE1;
+         end else if(timeout) begin
+            state   <= IDLE;
+         end else begin
+            clk_cnt <= clk_cnt + 1;
+         end
+      end
+      NEG_EDGE1 : begin
+         if(rxd_nedge) begin
+            ref1_cnt <= clk_cnt;
+            clk_cnt  <= 'h0;
+            state    <= POS_EDGE2;
+         end else if(timeout) begin
+            state   <= IDLE;
+         end else begin
+            clk_cnt <= clk_cnt + 1;
+         end
+      end
+      POS_EDGE2 : begin
+         if(rxd_pedge) begin
+            clk_cnt  <= 'h0;
+            state    <= NEG_EDGE2;
+         end else if(timeout) begin
+            state   <= IDLE;
+         end else begin
+            clk_cnt <= clk_cnt + 1;
+         end
+      end
+      NEG_EDGE2 : begin
+         if(rxd_nedge) begin
+            ref2_cnt <= clk_cnt;
+            clk_cnt  <= 'h0;
+            state    <= COMPUTE;
+         end else if(timeout) begin
+            state   <= IDLE;
+         end else begin
+            clk_cnt <= clk_cnt + 1;
+         end
+      end
+      COMPUTE: begin
+         if(ref_diff < 16) begin
+            // Average it, Generate Div-16 + Additional Sub by 2 is due to clk_ctl module div n implementation
+            if(baud_16x > 1)
+                auto_baud_16x <= baud_16x -1;
+            else 
+                auto_baud_16x <= 0;
+            state     <= STOP_EDGE;
+         end else  begin
+            state     <= IDLE;
+         end
+      end
+      STOP_EDGE : begin
+         if(rxd_pedge) begin
+            state    <= AUTO_DONE;
+         end else if(timeout) begin
+            state   <= IDLE;
+         end else begin
+            clk_cnt <= clk_cnt + 1;
+         end
+      end
+      AUTO_DONE: begin
+         auto_tx_enb <= 1'b1;
+         auto_rx_enb <= 1'b1;
+      end
+      endcase
+
+   end
+end
+
+
+endmodule
+ 
+                   

diff --git a/verilog/rtl/uart2wb/src/uart_msg_handler.v b/verilog/rtl/uart2wb/src/uart_msg_handler.v
index e6436e5..860c073 100755
--- a/verilog/rtl/uart2wb/src/uart_msg_handler.v
+++ b/verilog/rtl/uart2wb/src/uart_msg_handler.v

@@ -44,6 +44,7 @@
 module uart_msg_handler (  
         reset_n ,
         sys_clk ,
+        cfg_uart_enb,
 
 
     // UART-TX Information
@@ -69,16 +70,17 @@
 
 
 // Define the Message Hanlde States
-`define IDLE	         4'h0
-`define IDLE_TX_MSG1	 4'h1
-`define IDLE_TX_MSG2	 4'h2
-`define RX_CMD_PHASE	 4'h3
-`define ADR_PHASE	 4'h4
-`define WR_DATA_PHASE	 4'h5
-`define SEND_WR_REQ	 4'h6
-`define SEND_RD_REQ	 4'h7
-`define SEND_RD_DATA	 4'h8
-`define TX_MSG           4'h9
+`define POWERON_WAIT	 4'h0
+`define IDLE     	     4'h1
+`define IDLE_TX_MSG1	 4'h2
+`define IDLE_TX_MSG2	 4'h3
+`define RX_CMD_PHASE	 4'h4
+`define ADR_PHASE	     4'h5
+`define WR_DATA_PHASE	 4'h6
+`define SEND_WR_REQ	     4'h7
+`define SEND_RD_REQ	     4'h8
+`define SEND_RD_DATA	 4'h9
+`define TX_MSG           4'hA
      
 `define BREAK_CHAR       8'h0A
 
@@ -88,6 +90,7 @@
 
 input        reset_n               ; // line reset
 input        sys_clk               ; // line clock
+input        cfg_uart_enb          ;
 
 
 //--------------------------------------
@@ -131,7 +134,7 @@
 reg  [31:0]     reg_wdata          ; // reg_addr
 reg             reg_wr             ; // 1 -> Reg Write request, 0 -> Read Requestion
 reg             reg_req            ; // 1 -> Register request
-
+reg   [7:0]     wait_cnt           ;
 
 wire rx_ready = 1; 
 /****************************************************************
@@ -164,17 +167,27 @@
       reg_addr       <= 0;
       reg_wr        <= 1'b0; // Read request
       reg_wdata     <= 0;
-      State         <= `IDLE;
-      NextState     <= `IDLE;
+      State         <= `POWERON_WAIT;
+      NextState     <= `POWERON_WAIT;
+      wait_cnt      <= 'h0;
    end else begin
    case(State)
       // Send Default Message
+      `POWERON_WAIT: begin
+         if(cfg_uart_enb) begin
+           if(wait_cnt == 8'hff) begin
+	           State         <= `IDLE;
+           end else begin
+               wait_cnt      <= wait_cnt+1;
+           end
+         end
+       end
       `IDLE: begin
-   	  TxMsgBuf      <= "Command Format:\n";  // Align to 16 character format by appending space character
-          TxMsgSize     <= 16;
-	  tx_data_avail <= 0;
-	  State         <= `TX_MSG;
-	  NextState     <= `IDLE_TX_MSG1;
+   	       TxMsgBuf      <= "Command Format:\n";  // Align to 16 character format by appending space character
+           TxMsgSize     <= 16;
+	       tx_data_avail <= 0;
+	       State         <= `TX_MSG;
+	       NextState     <= `IDLE_TX_MSG1;
        end
 
       // Send Default Message (Contd..)

diff --git a/verilog/rtl/usb1_host/src/phy/usb_fs_phy.v b/verilog/rtl/usb1_host/src/phy/usb_fs_phy.v
index f83656d..83d444c 100644
--- a/verilog/rtl/usb1_host/src/phy/usb_fs_phy.v
+++ b/verilog/rtl/usb1_host/src/phy/usb_fs_phy.v

@@ -633,7 +633,6 @@
 //-----------------------------------------------------------------
 // Tx
 //-----------------------------------------------------------------
-wire out_bit_w = sample_w ? data_q[0] : 1'bz;
 
 always @ (posedge clk_i or negedge rstn_i)
 if (!rstn_i)

diff --git a/verilog/rtl/user_params.svh b/verilog/rtl/user_params.svh
index a8b8341..325c436 100644
--- a/verilog/rtl/user_params.svh
+++ b/verilog/rtl/user_params.svh

@@ -4,11 +4,11 @@
 // ASCI Representation of RISC = 32'h8273_8343
 parameter CHIP_SIGNATURE = 32'h8273_8343;
 // Software Reg-1, Release date: <DAY><MONTH><YEAR>
-parameter CHIP_RELEASE_DATE = 32'h0709_2022;
+parameter CHIP_RELEASE_DATE = 32'h1409_2022;
 // Software Reg-2: Poject Revison 5.1 = 0005200
-parameter CHIP_REVISION   = 32'h0005_4000;
+parameter CHIP_REVISION   = 32'h0005_5000;
 
-parameter SKEW_RESET_VAL = 32'b0000_0000_1000_0111_1001_1000_1001_1000;
+parameter SKEW_RESET_VAL = 32'b0000_0000_1000_0111_1001_1000_1001_0111;
 
 parameter PSTRAP_DEFAULT_VALUE = 15'b000_0111_1010_0000;
 
@@ -48,9 +48,9 @@
                  2'b10 - Default value + 4               
                  2'b11 - Default value - 4 
      bit [4:13]   - uart master config control
-                 2'b00   - constant value based on system clock-50Mhz (Default)
-                 2'b01   - constant value based on system clock-40Mhz 
-                 2'b10   - constant value based on system clock-60Mhz (USB Ref Clock)
+                 2'b00   - Auto Detect (Default)
+                 2'b01   - constant value based on system clock-50Mhz
+                 2'b10   - constant value based on system clock-4Mhz 
                  2'b11   - load from LA
 
      bit[15]   - Strap Mode

diff --git a/verilog/rtl/user_project_wrapper.v b/verilog/rtl/user_project_wrapper.v
index 283964a..cd0b302 100644
--- a/verilog/rtl/user_project_wrapper.v
+++ b/verilog/rtl/user_project_wrapper.v

@@ -268,7 +268,13 @@
 ////          boot up config                                      ////
 ////          2'b00 - 50Mhz, 2'b01 - 40Mhz, 2'b10 - 50Mhz,        ////
 ////          2'b11 - LA control                                  ////
-////                                                              ////
+////    5.5  Sept 14 2022, Dinesh A                               ////
+////          A. Auto Baud detection added in uart master as      ////
+////          power on user_clock1 is not decided, strap def      ////
+////          changed                                             ////
+////          2'b00 - Auto, 2'b01 - 50Mhz, 2'b10 - 4Mhz,          ////
+////          2'b11 - LA control                                  ////
+////          B. digital_pll is re-synth with maual placement     ////
 ////                                                              ////
 //////////////////////////////////////////////////////////////////////
 ////                                                              ////
@@ -745,6 +751,11 @@
 wire [1:0]                     pll_clk_out                            ; // Two 90 degree clock phases
 
 wire [3:0]                     spi_csn                                ;
+wire                           xtal_clk                               ;
+wire                           e_reset_n                              ;
+wire                           p_reset_n                              ;
+wire                           s_reset_n                              ;
+wire                           cfg_strap_pad_ctrl                     ;
 
 //---------------------------------------------------------------------
 // Strap

diff --git a/verilog/rtl/user_reg_map.v b/verilog/rtl/user_reg_map.v
index ff6a316..28b4293 100644
--- a/verilog/rtl/user_reg_map.v
+++ b/verilog/rtl/user_reg_map.v

@@ -68,13 +68,34 @@
 //--------------------------------------------------
 // PWM Register
 // -------------------------------------------------
-`define PWM_GLBL_CFG          8'h00  // reg_0 - PWM Global Config
-`define PWM_CFG_PWM_0         8'h04  // reg_1 - PWM Reg-0
-`define PWM_CFG_PWM_1         8'h08  // reg_2 - PWM Reg-1
-`define PWM_CFG_PWM_2         8'h0C  // reg_3 - PWM Reg-2
-`define PWM_CFG_PWM_3         8'h10  // reg_4 - PWM Reg-3
-`define PWM_CFG_PWM_4         8'h14  // reg_5 - PWM Reg-4
-`define PWM_CFG_PWM_5         8'h18  // reg_6 - PWM Reg-5
+`define PWM_GLBL_CFG0         8'h00  // reg_0 - PWM Global Config-0
+`define PWM_GLBL_CFG1         8'h04  // reg_1 - PWM Global Config-1
+`define PWM_GLBL_INTR_MASK    8'h08  // reg_2 - PWM Global Interrupt Status
+`define PWM_GLBL_INTR_STAT    8'h0C  // reg_3 - PWM Global Interrupt Mask
+`define PWM_BLK0_CFG0         8'h10  // reg_0 - PWM BLK-0 Reg-0
+`define PWM_BLK0_CFG1         8'h14  // reg_1 - PWM BLK-0 Reg-1
+`define PWM_BLK0_CFG2         8'h18  // reg_2 - PWM BLK-0 Reg-2
+`define PWM_BLK0_CFG3         8'h1C  // reg_3 - PWM BLK-0 Reg-3
+`define PWM_BLK1_CFG0         8'h20  // reg_0 - PWM BLK-1 Reg-0
+`define PWM_BLK1_CFG1         8'h24  // reg_1 - PWM BLK-1 Reg-1
+`define PWM_BLK1_CFG2         8'h28  // reg_2 - PWM BLK-1 Reg-2
+`define PWM_BLK1_CFG3         8'h2C  // reg_3 - PWM BLK-1 Reg-3
+`define PWM_BLK2_CFG0         8'h30  // reg_0 - PWM BLK-2 Reg-0
+`define PWM_BLK2_CFG1         8'h34  // reg_1 - PWM BLK-2 Reg-1
+`define PWM_BLK2_CFG2         8'h38  // reg_2 - PWM BLK-2 Reg-2
+`define PWM_BLK2_CFG3         8'h3C  // reg_3 - PWM BLK-2 Reg-3
+`define PWM_BLK3_CFG0         8'h40  // reg_0 - PWM BLK-3 Reg-0
+`define PWM_BLK3_CFG1         8'h44  // reg_1 - PWM BLK-3 Reg-1
+`define PWM_BLK3_CFG2         8'h48  // reg_2 - PWM BLK-3 Reg-2
+`define PWM_BLK3_CFG3         8'h4C  // reg_3 - PWM BLK-3 Reg-3
+`define PWM_BLK4_CFG0         8'h50  // reg_0 - PWM BLK-4 Reg-0
+`define PWM_BLK4_CFG1         8'h54  // reg_1 - PWM BLK-4 Reg-1
+`define PWM_BLK4_CFG2         8'h58  // reg_2 - PWM BLK-4 Reg-2
+`define PWM_BLK4_CFG3         8'h5C  // reg_3 - PWM BLK-4 Reg-3
+`define PWM_BLK5_CFG0         8'h60  // reg_0 - PWM BLK-5 Reg-0
+`define PWM_BLK5_CFG1         8'h64  // reg_1 - PWM BLK-5 Reg-1
+`define PWM_BLK5_CFG2         8'h68  // reg_2 - PWM BLK-5 Reg-2
+`define PWM_BLK5_CFG3         8'h6C  // reg_3 - PWM BLK-5 Reg-3
 
 //--------------------------------------------------
 // TIMER Register

diff --git a/verilog/rtl/wb_host/src/wb_host.sv b/verilog/rtl/wb_host/src/wb_host.sv
index e35f5cb..d56b92a 100644
--- a/verilog/rtl/wb_host/src/wb_host.sv
+++ b/verilog/rtl/wb_host/src/wb_host.sv

@@ -272,9 +272,9 @@
 //      it has additional 1 cycle additional count,
 //      so we are subtracting desired count by 2
 // strap_uartm
-//     2'b00 - 50Mhz - 324
-//     2'b01 - 40Mhz - 258
-//     2'b10 - 60Mhz - 389
+//     2'b00 - Auto Baud Detect
+//     2'b01 - 50Mhz - 324
+//     2'b10 - 4Mhz - 24
 //     2'b11 - Load from LA
 //-------------------------------------------------
 
@@ -284,9 +284,12 @@
 wire       cfg_uartm_stop_bit    = (strap_uartm==2'b11) ? la_data_in[3]     : 1'b1;
 wire [1:0] cfg_uartm_cfg_pri_mod = (strap_uartm==2'b11) ? la_data_in[17:16] : 2'b0;
 
-wire [11:0]cfg_uart_baud_16x     = (strap_uartm==2'b00) ? 324:
-                                   (strap_uartm==2'b01) ? 258:
-                                   (strap_uartm==2'b10) ? 389: la_data_in[15:4];
+wire [11:0]cfg_uart_baud_16x     = (strap_uartm==2'b00) ? 'h0:
+                                   (strap_uartm==2'b01) ? 324:
+                                   (strap_uartm==2'b10) ? 24: la_data_in[15:4];
+
+wire       cfg_uartm_aut_det     = (strap_uartm==2'b00) ? 1'b1: 1'b0;
+
 
 
 // UART Master
@@ -295,6 +298,7 @@
         .app_clk         (wbm_clk_i               ), //  sys clock    
 
 	// configuration control
+       .cfg_auto_det     (cfg_uartm_aut_det       ), // Auto Baud Value detect
        .cfg_tx_enable    (cfg_uartm_tx_enable     ), // Enable Transmit Path
        .cfg_rx_enable    (cfg_uartm_rx_enable     ), // Enable Received Path
        .cfg_stop_bit     (cfg_uartm_stop_bit      ), // 0 -> 1 Start , 1 -> 2 Stop Bits

diff --git a/verilog/rtl/pinmux/src/ws281x_driver.sv b/verilog/rtl/ws281x/src/ws281x_driver.sv
similarity index 100%
rename from verilog/rtl/pinmux/src/ws281x_driver.sv
rename to verilog/rtl/ws281x/src/ws281x_driver.sv


diff --git a/verilog/rtl/pinmux/src/ws281x_reg.sv b/verilog/rtl/ws281x/src/ws281x_reg.sv
similarity index 97%
rename from verilog/rtl/pinmux/src/ws281x_reg.sv
rename to verilog/rtl/ws281x/src/ws281x_reg.sv
index 31f25c1..0444b92 100644
--- a/verilog/rtl/pinmux/src/ws281x_reg.sv
+++ b/verilog/rtl/ws281x/src/ws281x_reg.sv

@@ -128,12 +128,10 @@
 wire   sw_wr_en_3  = sw_wr_en  & (sw_addr == 4'h3);
 wire   sw_wr_en_4  = sw_wr_en  & (sw_addr == 4'h4) & !fifo_full[0]; // Write only if fifo is not full
 wire   sw_wr_en_5  = sw_wr_en  & (sw_addr == 4'h5) & !fifo_full[1]; // Write only if fifo is not full
-wire   sw_wr_en_6  = sw_wr_en  & (sw_addr == 4'h6) & !fifo_full[2]; // Write only if fifo is not full
-wire   sw_wr_en_7  = sw_wr_en  & (sw_addr == 4'h7) & !fifo_full[3]; // Write only if fifo is not full
 
 
 // Generated seperate write enable case to block the reg ack duration when fifo is full
-wire  sw_wr_en_t =  sw_wr_en_0 | sw_wr_en_1 | sw_wr_en_2 | sw_wr_en_3 | sw_wr_en_4 | sw_wr_en_5 | sw_wr_en_6 | sw_wr_en_7;
+wire  sw_wr_en_t =  sw_wr_en_0 | sw_wr_en_1 | sw_wr_en_2 | sw_wr_en_3 | sw_wr_en_4 | sw_wr_en_5 ;
 
 
 always @ (posedge mclk or negedge h_reset_n)
@@ -173,6 +171,8 @@
 	      .data_out   (reg_0[3:0]       )
 	      );
 
+assign reg_0[31:4] = 'h0;
+
 // CONFIG-0
 assign cfg_reset_period = reg_1[15:0];
 gen_16b_reg  #(32'h0) u_reg_1	(
@@ -187,6 +187,8 @@
 	      .data_out   (reg_1[15:0]         )
 	      );
 
+assign reg_1[31:16] = 0;
+
 // CONFIG-1
 
 assign cfg_th1_period  = reg_2[29:20]; // High Exit Period for Data-1
@@ -239,7 +241,7 @@
 generate
 for (port = 0; $unsigned(port) < NP; port=port+1) begin : gfifo
 
-sync_fifo #(.W(24), .D(8)) u_fifo
+sync_fifo #(.W(24), .D(2)) u_fifo
            (
             .clk         (mclk                 ),
 	        .reset_n     (h_reset_n            ),

diff --git a/verilog/rtl/pinmux/src/ws281x_top.sv b/verilog/rtl/ws281x/src/ws281x_top.sv
similarity index 97%
rename from verilog/rtl/pinmux/src/ws281x_top.sv
rename to verilog/rtl/ws281x/src/ws281x_top.sv
index 6ab06fa..138414b 100644
--- a/verilog/rtl/pinmux/src/ws281x_top.sv
+++ b/verilog/rtl/ws281x/src/ws281x_top.sv

@@ -64,7 +64,13 @@
 logic [9:0]    cfg_th0_period       ;   // bit-0 drive low period
 logic [9:0]    cfg_th1_period       ;   // bit-1 drive low period
 
+logic          port0_enb            ;
+logic          port0_rd             ;
+logic          port0_dval           ;
 logic [23:0]   port0_data           ;
+logic          port1_enb            ;
+logic          port1_rd             ;
+logic          port1_dval           ;
 logic [23:0]   port1_data           ;
 //logic [23:0]   port2_data         ;
 //logic [23:0]   port3_data         ;