Added storage area standalone rtl
diff --git a/verilog/rtl/storage.v b/verilog/rtl/storage.v
new file mode 100644
index 0000000..b773158
--- /dev/null
+++ b/verilog/rtl/storage.v
@@ -0,0 +1,70 @@
+
+/* User area has R/W access for USER_BLOCKS and RO access for MGMT_BLOCKS
+ Management area has R/W access for MGMT_BLOCKS and RO access for USER_BLOCKS */
+
+module storage #(
+ parameter USER_BLOCKS = 4, // R/W access
+ parameter MGMT_BLOCKS = 2 // R/W access
+) (
+ // MGMT_AREA R/W Interface (MGMT_BLOCKS)
+ input mgmt_clk,
+ input [MGMT_BLOCKS-1:0] mgmt_ena,
+ input [MGMT_BLOCKS-1:0] mgmt_wen, // not shared
+ input [(MGMT_BLOCKS*4)-1:0] mgmt_wen_mask, // not shared
+ input [7:0] mgmt_addr,
+ input [31:0] mgmt_wdata,
+ output [(MGMT_BLOCKS*32)-1:0] mgmt_rdata,
+
+ // MGMT_AREA RO Interface (USER_BLOCKS)
+ input [USER_BLOCKS-1:0] mgmt_user_ena,
+ input [7:0] mgmt_user_addr,
+ output [(USER_BLOCKS*32)-1:0] mgmt_user_rdata,
+
+ // USER_AREA R/W Interface (USER_BLOCKS)
+ input user_clk,
+ input [USER_BLOCKS-1:0] user_ena,
+ input [USER_BLOCKS-1:0] user_wen,
+ input [(USER_BLOCKS*4)-1:0] user_wen_mask,
+ input [7:0] user_addr,
+ input [31:0] user_wdata,
+ output [(USER_BLOCKS*32)-1:0] user_rdata,
+
+ // USER_AREA RO Interface (MGMT_BLOCS)
+ input [MGMT_BLOCKS-1:0] user_mgmt_ena,
+ input [7:0] user_mgmt_addr,
+ output [(MGMT_BLOCKS*32)-1:0] user_mgmt_rdata
+);
+
+ sram_1rw1r_32_256_8_sky130 SRAM_0 [MGMT_BLOCKS-1:0] (
+ // MGMT R/W port
+ .clk0(mgmt_clk),
+ .csb0(mgmt_ena),
+ .web0(mgmt_wen),
+ .wmask0(mgmt_wen_mask),
+ .addr0(mgmt_addr[7:0]),
+ .din0(mgmt_wdata),
+ .dout0(mgmt_rdata),
+ // User RO port
+ .clk1(user_clk),
+ .csb1(user_mgmt_ena),
+ .addr1(user_mgmt_addr),
+ .dout1(user_mgmt_rdata)
+ );
+
+ sram_1rw1r_32_256_8_sky130 SRAM_1 [USER_BLOCKS-1:0](
+ // User R/W port
+ .clk0(user_clk),
+ .csb0(user_ena),
+ .web0(user_wen),
+ .wmask0(user_wen_mask),
+ .addr0(user_addr),
+ .din0(user_wdata),
+ .dout0(user_rdata),
+ // MGMT RO port
+ .clk1(mgmt_clk),
+ .csb1(mgmt_user_ena),
+ .addr1(mgmt_user_addr),
+ .dout1(mgmt_user_rdata)
+ );
+
+endmodule
\ No newline at end of file
