diff options
Diffstat (limited to 'src/rtl/keywrap_core.v')
| -rw-r--r-- | src/rtl/keywrap_core.v | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/src/rtl/keywrap_core.v b/src/rtl/keywrap_core.v index 8d8f101..d1e63b0 100644 --- a/src/rtl/keywrap_core.v +++ b/src/rtl/keywrap_core.v @@ -40,29 +40,30 @@ // //====================================================================== -module keywrap_core ( - input wire clk, - input wire reset_n, +module keywrap_core #(parameter MEM_BITS = 11) + ( + input wire clk, + input wire reset_n, - input wire init, - input wire next, - input wire encdec, + input wire init, + input wire next, + input wire encdec, - output wire ready, - output wire valid, + output wire ready, + output wire valid, - input wire [12 : 0] rlen, + input wire [(MEM_BITS - 2) : 0] rlen, - input wire [255 : 0] key, - input wire keylen, + input wire [255 : 0] key, + input wire keylen, - input wire [63 : 0] a_init, - output wire [63 : 0] a_result, + input wire [63 : 0] a_init, + output wire [63 : 0] a_result, - input wire api_we, - input wire [13 : 0] api_addr, - input wire [31 : 0] api_wr_data, - output wire [31 : 0] api_rd_data + input wire api_we, + input wire [(MEM_BITS - 1) : 0] api_addr, + input wire [31 : 0] api_wr_data, + output wire [31 : 0] api_rd_data ); @@ -100,13 +101,13 @@ module keywrap_core ( reg valid_new; reg valid_we; - reg [12 : 0] block_ctr_reg; - reg [12 : 0] block_ctr_new; - reg block_ctr_we; - reg block_ctr_dec; - reg block_ctr_inc; - reg block_ctr_rst; - reg block_ctr_set; + reg [(MEM_BITS - 2) : 0] block_ctr_reg; + reg [(MEM_BITS - 2) : 0] block_ctr_new; + reg block_ctr_we; + reg block_ctr_dec; + reg block_ctr_inc; + reg block_ctr_rst; + reg block_ctr_set; reg [2 : 0] iteration_ctr_reg; reg [2 : 0] iteration_ctr_new; @@ -133,16 +134,17 @@ module keywrap_core ( reg update_state; - reg core_we; - reg [12 : 0] core_addr; - reg [63 : 0] core_wr_data; - wire [63 : 0] core_rd_data; + reg core_we; + reg [(MEM_BITS - 2) : 0] core_addr; + reg [63 : 0] core_wr_data; + wire [63 : 0] core_rd_data; //---------------------------------------------------------------- // Instantiations. //---------------------------------------------------------------- - keywrap_mem mem( + keywrap_mem #(.API_ADDR_BITS(MEM_BITS)) + mem( .clk(clk), .api_we(api_we), @@ -194,7 +196,7 @@ module keywrap_core ( a_reg <= 64'h0; ready_reg <= 1'h1; valid_reg <= 1'h1; - block_ctr_reg <= 13'h0; + block_ctr_reg <= {(MEM_BITS - 1){1'h0}}; iteration_ctr_reg <= 3'h0; keywrap_core_ctrl_reg <= CTRL_IDLE; end @@ -269,12 +271,12 @@ module keywrap_core ( //---------------------------------------------------------------- always @* begin : block_ctr - block_ctr_new = 13'h0; + block_ctr_new = {(MEM_BITS - 1){1'h0}}; block_ctr_we = 1'h0; if (block_ctr_rst) begin - block_ctr_new = 13'h0; + block_ctr_new = {(MEM_BITS - 1){1'h0}}; block_ctr_we = 1'h1; end |