Updated storage area
- Now has 2 blocks; one rw and one ro
diff --git a/verilog/rtl/caravel.v b/verilog/rtl/caravel.v
index 5dacab8..f3abb74 100644
--- a/verilog/rtl/caravel.v
+++ b/verilog/rtl/caravel.v
@@ -320,27 +320,16 @@
// Storage area
// Management R/W interface
- wire [`MGMT_BLOCKS-1:0] mgmt_ena;
- wire [`MGMT_BLOCKS-1:0] mgmt_wen;
- wire [(`MGMT_BLOCKS*4)-1:0] mgmt_wen_mask;
+ wire [`RAM_BLOCKS-1:0] mgmt_ena;
+ wire [`RAM_BLOCKS-1:0] mgmt_wen;
+ wire [(`RAM_BLOCKS*4)-1:0] mgmt_wen_mask;
wire [7:0] mgmt_addr;
wire [31:0] mgmt_wdata;
- wire [(`MGMT_BLOCKS*32)-1:0] mgmt_rdata;
+ wire [(`RAM_BLOCKS*32)-1:0] mgmt_rdata;
// Management RO interface
- wire [`USER_BLOCKS-1:0] mgmt_user_ena;
- wire [7:0] mgmt_user_addr;
- wire [(`USER_BLOCKS*32)-1:0] mgmt_user_rdata;
- // User R/W interface
- wire [`USER_BLOCKS-1:0] user_ena;
- wire [`USER_BLOCKS-1:0] user_wen;
- wire [(`USER_BLOCKS*4)-1:0] user_wen_mask;
- wire [7:0] user_addr;
- wire [31:0] user_wdata;
- wire [(`USER_BLOCKS*32)-1:0] user_rdata;
- // User RO interface
- wire [`MGMT_BLOCKS-1:0] user_mgmt_ena;
- wire [7:0] user_mgmt_addr;
- wire [(`MGMT_BLOCKS*32)-1:0] user_mgmt_rdata;
+ wire mgmt_ena_ro;
+ wire [7:0] mgmt_addr_ro;
+ wire [31:0] mgmt_rdata_ro;
mgmt_core soc (
`ifdef LVS
@@ -407,17 +396,17 @@
.mprj_dat_i(mprj_dat_i_core),
// mask data
.mask_rev(mask_rev),
- // MGMT area R/W interface for mgmt RAM
+ // MGMT area R/W interface
.mgmt_ena(mgmt_ena),
.mgmt_wen_mask(mgmt_wen_mask),
.mgmt_wen(mgmt_wen),
.mgmt_addr(mgmt_addr),
.mgmt_wdata(mgmt_wdata),
.mgmt_rdata(mgmt_rdata),
- // MGMT area RO interface for user RAM
- .user_ena(mgmt_user_ena),
- .user_addr(mgmt_user_addr),
- .user_rdata(mgmt_user_rdata)
+ // MGMT area RO interface
+ .mgmt_ena_ro(mgmt_ena_ro),
+ .mgmt_addr_ro(mgmt_addr_ro),
+ .mgmt_rdata_ro(mgmt_rdata_ro)
);
/* Clock and reset to user space are passed through a tristate */
@@ -641,10 +630,7 @@
);
// Storage area
- storage #(
- .MGMT_BLOCKS(`MGMT_BLOCKS),
- .USER_BLOCKS(`USER_BLOCKS)
- ) storage(
+ storage storage(
.mgmt_clk(caravel_clk),
.mgmt_ena(mgmt_ena),
.mgmt_wen(mgmt_wen),
@@ -653,22 +639,9 @@
.mgmt_wdata(mgmt_wdata),
.mgmt_rdata(mgmt_rdata),
// Management RO interface
- .mgmt_user_ena(mgmt_user_ena),
- .mgmt_user_addr(mgmt_user_addr),
- .mgmt_user_rdata(mgmt_user_rdata),
-
- // User R/W interface
- .user_clk(caravel_clk2),
- .user_ena(user_ena),
- .user_wen(user_wen),
- .user_wen_mask(user_wen_mask),
- .user_addr(user_addr),
- .user_wdata(user_wdata),
- .user_rdata(user_rdata),
- // User RO interface
- .user_mgmt_ena(user_mgmt_ena),
- .user_mgmt_addr(user_mgmt_addr),
- .user_mgmt_rdata(user_mgmt_rdata)
+ .mgmt_ena_ro(mgmt_ena_ro),
+ .mgmt_addr_ro(mgmt_addr_ro),
+ .mgmt_rdata_ro(mgmt_rdata_ro)
);
endmodule
diff --git a/verilog/rtl/defines.v b/verilog/rtl/defines.v
index 8275a11..d817340 100644
--- a/verilog/rtl/defines.v
+++ b/verilog/rtl/defines.v
@@ -11,6 +11,6 @@
// don't change the following without double checking addr widths
`define MEM_WORDS 256
-// Number of RAM blocks for the mgmt_core
-`define MGMT_BLOCKS 2
-`define USER_BLOCKS 6
+// not really parameterized but just to easily keep track of the number
+// of ram_block across different modules
+`define RAM_BLOCKS 2
\ No newline at end of file
diff --git a/verilog/rtl/mgmt_core.v b/verilog/rtl/mgmt_core.v
index 3e42f3e..767a377 100644
--- a/verilog/rtl/mgmt_core.v
+++ b/verilog/rtl/mgmt_core.v
@@ -68,17 +68,17 @@
input [31:0] mask_rev,
// MGMT area R/W interface for mgmt RAM
- output [`MGMT_BLOCKS-1:0] mgmt_ena,
- output [(`MGMT_BLOCKS*4)-1:0] mgmt_wen_mask,
- output [`MGMT_BLOCKS-1:0] mgmt_wen,
+ output [`RAM_BLOCKS-1:0] mgmt_ena,
+ output [(`RAM_BLOCKS*4)-1:0] mgmt_wen_mask,
+ output [`RAM_BLOCKS-1:0] mgmt_wen,
output [7:0] mgmt_addr,
output [31:0] mgmt_wdata,
- input [(`MGMT_BLOCKS*32)-1:0] mgmt_rdata,
+ input [(`RAM_BLOCKS*32)-1:0] mgmt_rdata,
// MGMT area RO interface for user RAM
- output [`USER_BLOCKS-1:0] user_ena,
- output [7:0] user_addr,
- input [(`USER_BLOCKS*32)-1:0] user_rdata
+ output mgmt_ena_ro,
+ output [7:0] mgmt_addr_ro,
+ input [31:0] mgmt_rdata_ro
);
wire ext_clk_sel;
wire pll_clk, pll_clk90;
@@ -234,9 +234,9 @@
.mgmt_wdata(mgmt_wdata),
.mgmt_rdata(mgmt_rdata),
// MGMT area RO interface for user RAM
- .user_ena(user_ena),
- .user_addr(user_addr),
- .user_rdata(user_rdata)
+ .mgmt_ena_ro(mgmt_ena_ro),
+ .mgmt_addr_ro(mgmt_addr_ro),
+ .mgmt_rdata_ro(mgmt_rdata_ro)
);
digital_pll pll (
diff --git a/verilog/rtl/mgmt_soc.v b/verilog/rtl/mgmt_soc.v
index d5fbd92..4f26b40 100644
--- a/verilog/rtl/mgmt_soc.v
+++ b/verilog/rtl/mgmt_soc.v
@@ -140,17 +140,17 @@
output [31:0] mprj_dat_o,
// MGMT area R/W interface for mgmt RAM
- output [`MGMT_BLOCKS-1:0] mgmt_ena,
- output [(`MGMT_BLOCKS*4)-1:0] mgmt_wen_mask,
- output [`MGMT_BLOCKS-1:0] mgmt_wen,
+ output [`RAM_BLOCKS-1:0] mgmt_ena,
+ output [(`RAM_BLOCKS*4)-1:0] mgmt_wen_mask,
+ output [`RAM_BLOCKS-1:0] mgmt_wen,
output [7:0] mgmt_addr,
output [31:0] mgmt_wdata,
- input [(`MGMT_BLOCKS*32)-1:0] mgmt_rdata,
+ input [(`RAM_BLOCKS*32)-1:0] mgmt_rdata,
// MGMT area RO interface for user RAM
- output [`USER_BLOCKS-1:0] user_ena,
- output [7:0] user_addr,
- input [(`USER_BLOCKS*32)-1:0] user_rdata
+ output mgmt_ena_ro,
+ output [7:0] mgmt_addr_ro,
+ input [31:0] mgmt_rdata_ro
);
/* Memory reverted back to 256 words while memory has to be synthesized */
parameter [31:0] STACKADDR = (4*(`MEM_WORDS)); // end of memory
@@ -159,8 +159,8 @@
// Slaves Base Addresses
parameter RAM_BASE_ADR = 32'h 0000_0000;
- parameter EXT_MRAM_BASE_ADR = 32'h 0100_0000;
- parameter EXT_URAM_BASE_ADR = 32'h 0200_0000;
+ parameter STORAGE_RW_ADR = 32'h 0100_0000;
+ parameter STORAGE_RO_ADR = 32'h 0200_0000;
parameter FLASH_BASE_ADR = 32'h 1000_0000;
parameter UART_BASE_ADR = 32'h 2000_0000;
parameter GPIO_BASE_ADR = 32'h 2100_0000;
@@ -214,17 +214,12 @@
parameter IRQ_SRC = 8'h0c;
// Storage area RAM blocks
- parameter [(`MGMT_BLOCKS*24)-1:0] MGMT_BLOCKS_ADR = {
+ parameter [(`RAM_BLOCKS*24)-1:0] RW_BLOCKS_ADR = {
{24'h 10_0000},
{24'h 00_0000}
};
- parameter [(`USER_BLOCKS*24)-1:0] USER_BLOCKS_ADR = {
- {24'h 50_0000},
- {24'h 40_0000},
- {24'h 30_0000},
- {24'h 20_0000},
- {24'h 10_0000},
+ parameter [23:0] RO_BLOCKS_ADR = {
{24'h 00_0000}
};
@@ -262,8 +257,8 @@
{GPIO_BASE_ADR},
{UART_BASE_ADR},
{FLASH_BASE_ADR},
- {EXT_URAM_BASE_ADR},
- {EXT_MRAM_BASE_ADR},
+ {STORAGE_RO_ADR},
+ {STORAGE_RW_ADR},
{RAM_BASE_ADR}
};
@@ -758,37 +753,30 @@
.wb_dat_o(mem_dat_o)
);
- wire uram_stb_i;
- wire mram_stb_i;
- wire uram_ack_o;
- wire mram_ack_o;
- wire [31:0] mram_dat_o;
- wire [31:0] uram_dat_o;
+ wire stg_rw_stb_i;
+ wire stg_ro_stb_i;
+ wire stg_rw_ack_o;
+ wire stg_ro_ack_o;
+ wire [31:0] stg_rw_dat_o;
+ wire [31:0] stg_ro_dat_o;
// Storage area wishbone brige
storage_bridge_wb #(
- .USER_BLOCKS(`USER_BLOCKS),
- .MGMT_BLOCKS(`MGMT_BLOCKS),
- .MGMT_BASE_ADR(EXT_MRAM_BASE_ADR),
- .USER_BASE_ADR(EXT_URAM_BASE_ADR),
- .MGMT_BLOCKS_ADR(MGMT_BLOCKS_ADR),
- .USER_BLOCKS_ADR(USER_BLOCKS_ADR)
+ .RW_BLOCKS_ADR(RW_BLOCKS_ADR),
+ .RO_BLOCKS_ADR(RO_BLOCKS_ADR)
) wb_bridge (
.wb_clk_i(wb_clk_i),
.wb_rst_i(wb_rst_i),
-
.wb_adr_i(cpu_adr_o),
.wb_dat_i(cpu_dat_o),
.wb_sel_i(cpu_sel_o),
.wb_we_i(cpu_we_o),
.wb_cyc_i(cpu_cyc_o),
- .wb_stb_i({uram_stb_i, mram_stb_i}),
- .wb_ack_o({uram_ack_o, mram_ack_o}),
- .wb_mgmt_dat_o(mram_dat_o),
-
+ .wb_stb_i({stg_ro_stb_i, stg_rw_stb_i}),
+ .wb_ack_o({stg_ro_ack_o, stg_rw_ack_o}),
+ .wb_rw_dat_o(stg_rw_dat_o),
// MGMT_AREA RO WB Interface
- .wb_user_dat_o(uram_dat_o),
-
+ .wb_ro_dat_o(stg_ro_dat_o),
// MGMT Area native memory interface
.mgmt_ena(mgmt_ena),
.mgmt_wen_mask(mgmt_wen_mask),
@@ -796,11 +784,10 @@
.mgmt_addr(mgmt_addr),
.mgmt_wdata(mgmt_wdata),
.mgmt_rdata(mgmt_rdata),
-
// MGMT_AREA RO interface
- .mgmt_user_ena(user_ena),
- .mgmt_user_addr(user_addr),
- .mgmt_user_rdata(user_rdata)
+ .mgmt_ena_ro(mgmt_ena_ro),
+ .mgmt_addr_ro(mgmt_addr_ro),
+ .mgmt_rdata_ro(mgmt_rdata_ro)
);
// Wishbone intercon logic
@@ -822,17 +809,17 @@
mprj_stb_o, mprj_ctrl_stb_i, la_stb_i,
spi_master_stb_i, counter_timer1_stb_i, counter_timer0_stb_i,
gpio_stb_i, uart_stb_i,
- spimemio_flash_stb_i,uram_stb_i, mram_stb_i, mem_stb_i }),
+ spimemio_flash_stb_i, stg_ro_stb_i, stg_rw_stb_i, mem_stb_i }),
.wbs_dat_i({ sys_dat_o, spimemio_cfg_dat_o,
mprj_dat_i, mprj_ctrl_dat_o, la_dat_o,
spi_master_dat_o, counter_timer1_dat_o, counter_timer0_dat_o,
gpio_dat_o, uart_dat_o,
- spimemio_flash_dat_o, uram_dat_o, mram_dat_o, mem_dat_o }),
+ spimemio_flash_dat_o, stg_ro_dat_o ,stg_rw_dat_o, mem_dat_o }),
.wbs_ack_i({ sys_ack_o, spimemio_cfg_ack_o,
mprj_ack_i, mprj_ctrl_ack_o, la_ack_o,
spi_master_ack_o, counter_timer1_ack_o, counter_timer0_ack_o,
gpio_ack_o, uart_ack_o,
- spimemio_flash_ack_o, uram_ack_o, mram_ack_o, mem_ack_o })
+ spimemio_flash_ack_o, stg_ro_ack_o, stg_rw_ack_o, mem_ack_o })
);
endmodule
diff --git a/verilog/rtl/storage.v b/verilog/rtl/storage.v
index 65cf377..e16ab5e 100644
--- a/verilog/rtl/storage.v
+++ b/verilog/rtl/storage.v
@@ -1,70 +1,44 @@
-/* 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 = 6, // R/W access
- parameter MGMT_BLOCKS = 2 // R/W access
-) (
- // MGMT_AREA R/W Interface (MGMT_BLOCKS)
+module storage (
+ // MGMT_AREA R/W Interface
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 [`RAM_BLOCKS-1:0] mgmt_ena,
+ input [`RAM_BLOCKS-1:0] mgmt_wen, // not shared
+ input [(`RAM_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,
+ output [(`RAM_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
+ // MGMT_AREA RO Interface
+ input mgmt_ena_ro,
+ input [7:0] mgmt_addr_ro,
+ output [31:0] mgmt_rdata_ro
);
-
- sram_1rw1r_32_256_8_sky130 SRAM_0 [MGMT_BLOCKS-1:0] (
+ sram_1rw1r_32_256_8_sky130 SRAM_0 (
// MGMT R/W port
.clk0(mgmt_clk),
- .csb0(mgmt_ena),
- .web0(mgmt_wen),
- .wmask0(mgmt_wen_mask),
- .addr0(mgmt_addr[7:0]),
+ .csb0(mgmt_ena[0]),
+ .web0(mgmt_wen[0]),
+ .wmask0(mgmt_wen_mask[3:0]),
+ .addr0(mgmt_addr),
.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),
+ .dout0(mgmt_rdata[31:0]),
// MGMT RO port
.clk1(mgmt_clk),
- .csb1(mgmt_user_ena),
- .addr1(mgmt_user_addr),
- .dout1(mgmt_user_rdata)
- );
-
+ .csb1(mgmt_ena_ro),
+ .addr1(mgmt_addr_ro),
+ .dout1(mgmt_rdata_ro)
+ );
+
+ sram_1rw1r_32_256_8_sky130 SRAM_1 (
+ // MGMT R/W port
+ .clk0(mgmt_clk),
+ .csb0(mgmt_ena[1]),
+ .web0(mgmt_wen[1]),
+ .wmask0(mgmt_wen_mask[7:4]),
+ .addr0(mgmt_addr),
+ .din0(mgmt_wdata),
+ .dout0(mgmt_rdata[63:32])
+ );
+
endmodule
\ No newline at end of file
diff --git a/verilog/rtl/storage_bridge_wb.v b/verilog/rtl/storage_bridge_wb.v
index d1a19d1..aabcc36 100644
--- a/verilog/rtl/storage_bridge_wb.v
+++ b/verilog/rtl/storage_bridge_wb.v
@@ -1,9 +1,4 @@
-module storage_bridge_wb #(
- parameter USER_BLOCKS = 6,
- parameter MGMT_BLOCKS = 2,
- parameter MGMT_BASE_ADR = 32'h 0100_0000,
- parameter USER_BASE_ADR = 32'h 0200_0000
-) (
+module storage_bridge_wb (
// MGMT_AREA R/W WB Interface
input wb_clk_i,
input wb_rst_i,
@@ -15,37 +10,31 @@
input wb_cyc_i,
input [1:0] wb_stb_i,
output reg [1:0] wb_ack_o,
- output reg [31:0] wb_mgmt_dat_o,
+ output reg [31:0] wb_rw_dat_o,
// MGMT_AREA RO WB Interface
- output reg [31:0] wb_user_dat_o,
+ output [31:0] wb_ro_dat_o,
// MGMT Area native memory interface
- output [MGMT_BLOCKS-1:0] mgmt_ena,
- output [(MGMT_BLOCKS*4)-1:0] mgmt_wen_mask,
- output [MGMT_BLOCKS-1:0] mgmt_wen,
+ output [`RAM_BLOCKS-1:0] mgmt_ena,
+ output [(`RAM_BLOCKS*4)-1:0] mgmt_wen_mask,
+ output [`RAM_BLOCKS-1:0] mgmt_wen,
output [7:0] mgmt_addr,
output [31:0] mgmt_wdata,
- input [(MGMT_BLOCKS*32)-1:0] mgmt_rdata,
+ input [(`RAM_BLOCKS*32)-1:0] mgmt_rdata,
// MGMT_AREA RO Interface
- output [USER_BLOCKS-1:0] mgmt_user_ena,
- output [7:0] mgmt_user_addr,
- input [(USER_BLOCKS*32)-1:0] mgmt_user_rdata
+ output mgmt_ena_ro,
+ output [7:0] mgmt_addr_ro,
+ input [31:0] mgmt_rdata_ro
);
-
- parameter [(MGMT_BLOCKS*24)-1:0] MGMT_BLOCKS_ADR = {
+ parameter [(`RAM_BLOCKS*24)-1:0] RW_BLOCKS_ADR = {
{24'h 10_0000},
{24'h 00_0000}
};
- parameter [(USER_BLOCKS*24)-1:0] USER_BLOCKS_ADR = {
- {24'h 50_0000},
- {24'h 40_0000},
- {24'h 30_0000},
- {24'h 20_0000},
- {24'h 10_0000},
- {24'h 00_0000}
+ parameter [23:0] RO_BLOCKS_ADR = {
+ {24'h 20_0000}
};
parameter ADR_MASK = 24'h FF_0000;
@@ -72,46 +61,35 @@
end
// Address decoding
- wire [MGMT_BLOCKS-1: 0] mgmt_sel;
- wire [USER_BLOCKS-1: 0] user_sel;
+ wire [`RAM_BLOCKS-1: 0] rw_sel;
+ wire ro_sel;
- wire [23:0] test = (wb_adr_i[23:0] & ADR_MASK);
- wire iste = test == MGMT_BLOCKS_ADR[23:0];
genvar iS;
generate
- for (iS = 0; iS < MGMT_BLOCKS; iS = iS + 1) begin
- assign mgmt_sel[iS] =
- ((wb_adr_i[23:0] & ADR_MASK) == MGMT_BLOCKS_ADR[(iS+1)*24-1:iS*24]);
- end
- for (iS = 0; iS < USER_BLOCKS; iS = iS + 1) begin
- assign user_sel[iS] =
- ((wb_adr_i[23:0] & ADR_MASK) == USER_BLOCKS_ADR[(iS+1)*24-1:iS*24]);
+ for (iS = 0; iS < `RAM_BLOCKS; iS = iS + 1) begin
+ assign rw_sel[iS] =
+ ((wb_adr_i[23:0] & ADR_MASK) == RW_BLOCKS_ADR[(iS+1)*24-1:iS*24]);
end
endgenerate
- // Management SoC interface
- assign mgmt_ena = valid[0] ? ~mgmt_sel : {MGMT_BLOCKS{1'b1}};
- assign mgmt_wen = ~{MGMT_BLOCKS{wen[0]}};
- assign mgmt_wen_mask = {MGMT_BLOCKS{wen_mask[3:0]}};
- assign mgmt_addr = wb_adr_i[7:0];
+ // Management R/W interface
+ assign mgmt_ena = valid[0] ? ~rw_sel : {`RAM_BLOCKS{1'b1}};
+ assign mgmt_wen = ~{`RAM_BLOCKS{wen[0]}};
+ assign mgmt_wen_mask = {`RAM_BLOCKS{wen_mask[3:0]}};
+ assign mgmt_addr = wb_adr_i[9:2];
assign mgmt_wdata = wb_dat_i[31:0];
integer i;
always @(*) begin
- wb_mgmt_dat_o = {32{1'b0}};
- for (i=0; i<(MGMT_BLOCKS*32); i=i+1)
- wb_mgmt_dat_o[i%32] = wb_mgmt_dat_o[i%32] | (mgmt_sel[i/32] & mgmt_rdata[i]);
+ wb_rw_dat_o = {32{1'b0}};
+ for (i=0; i<(`RAM_BLOCKS*32); i=i+1)
+ wb_rw_dat_o[i%32] = wb_rw_dat_o[i%32] | (rw_sel[i/32] & mgmt_rdata[i]);
end
- // User Interface
- assign mgmt_user_ena = valid[1] ? ~user_sel : {USER_BLOCKS{1'b1}};
- assign mgmt_user_addr = wb_adr_i[7:0];
-
- integer j;
- always @(*) begin
- wb_user_dat_o = {32{1'b0}};
- for (j=0; j<(USER_BLOCKS*32); j=j+1)
- wb_user_dat_o[j%32] = wb_user_dat_o[j%32] | (user_sel[j/32] & mgmt_user_rdata[j]);
- end
+ // RO Interface
+ assign ro_sel = ((wb_adr_i[23:0] & ADR_MASK) == RO_BLOCKS_ADR);
+ assign mgmt_ena_ro = valid[1] ? ~ro_sel : 1'b1;
+ assign mgmt_addr_ro = wb_adr_i[9:2];
+ assign wb_ro_dat_o = mgmt_rdata_ro;
endmodule
\ No newline at end of file
