|
|
@ -38,7 +38,6 @@ module tdes |
|
|
|
); |
|
|
|
|
|
|
|
|
|
|
|
reg reset; |
|
|
|
reg mode; |
|
|
|
reg [0:63] key1; |
|
|
|
reg [0:63] key2; |
|
|
@ -65,14 +64,12 @@ module tdes |
|
|
|
// input register |
|
|
|
always @(posedge clk_i, negedge reset_i) begin |
|
|
|
if (~reset_i) begin |
|
|
|
reset <= 0; |
|
|
|
mode <= 0; |
|
|
|
key1 <= 0; |
|
|
|
key2 <= 0; |
|
|
|
key3 <= 0; |
|
|
|
end |
|
|
|
else begin |
|
|
|
reset <= reset_i; |
|
|
|
if (valid_i && ready_o) begin |
|
|
|
mode <= mode_i; |
|
|
|
key1 <= key1_i; |
|
|
@ -86,13 +83,13 @@ module tdes |
|
|
|
// output register |
|
|
|
always @(posedge clk_i, negedge reset_i) begin |
|
|
|
if (~reset_i) begin |
|
|
|
ready_o <= 0; |
|
|
|
ready_o <= 1; |
|
|
|
end |
|
|
|
else begin |
|
|
|
if (valid_i && ready_o) begin |
|
|
|
ready_o <= 0; |
|
|
|
end |
|
|
|
if (valid_o || (reset_i && ~reset)) begin |
|
|
|
if (valid_o) begin |
|
|
|
ready_o <= 1; |
|
|
|
end |
|
|
|
end |
|
|
|