题解 | #实现3-8译码器①#
实现3-8译码器①
https://www.nowcoder.com/practice/89659f98cb124362b1c816f06d5235d0
`timescale 1ns/1ns
module decoder_38(
input E1_n ,
input E2_n ,
input E3 ,
input A0 ,
input A1 ,
input A2 ,
output wire Y0_n ,
output wire Y1_n ,
output wire Y2_n ,
output wire Y3_n ,
output wire Y4_n ,
output wire Y5_n ,
output wire Y6_n ,
output wire Y7_n
);
wire [2:0]E,A;
assign E = {E3,E2_n,E1_n};
assign A = {A2,A1,A0};
assign Y0_n = ((E == 3'b100) && (A==3'b000)) ? 0 : 1 ;
assign Y1_n = ((E == 3'b100) && (A==3'b001)) ? 0 : 1 ;
assign Y2_n = ((E == 3'b100) && (A==3'b010)) ? 0 : 1 ;
assign Y3_n = ((E == 3'b100) && (A==3'b011)) ? 0 : 1 ;
assign Y4_n = ((E == 3'b100) && (A==3'b100)) ? 0 : 1 ;
assign Y5_n = ((E == 3'b100) && (A==3'b101)) ? 0 : 1 ;
assign Y6_n = ((E == 3'b100) && (A==3'b110)) ? 0 : 1 ;
assign Y7_n = ((E == 3'b100) && (A==3'b111)) ? 0 : 1 ;
endmodule
