| //2 to 4 binary decoder | |
| module bindecode_2t4 ( | |
| i_a, | |
| en, | |
| o_y | |
| ); | |
| input logic [1:0] i_a; | |
| input logic en; | |
| output logic [3:0] o_y; | |
| always_comb | |
| begin | |
| if (~en) | |
| o_y = 4'b0000; | |
| else | |
| begin | |
| case(i_a) | |
| 2'b00: o_y = 4'b0001; | |
| 2'b01: o_y = 4'b0010; | |
| 2'b10: o_y = 4'b0100; | |
| 2'b11: o_y = 4'b1000; | |
| default: o_y = 4'b0000; | |
| endcase | |
| end | |
| end | |
| endmodule | |