题解 | #使用3-8译码器①实现逻辑函数#
使用3-8译码器①实现逻辑函数
https://www.nowcoder.com/practice/be81e76ebade445baca7257aa4eca8f2
`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 E ; assign E = E3 & ~E2_n & ~E1_n; assign Y0_n = ~(E & ~A2 & ~A1 & ~A0); assign Y1_n = ~(E & ~A2 & ~A1 & A0); assign Y2_n = ~(E & ~A2 & A1 & ~A0); assign Y3_n = ~(E & ~A2 & A1 & A0); assign Y4_n = ~(E & A2 & ~A1 & ~A0); assign Y5_n = ~(E & A2 & ~A1 & A0); assign Y6_n = ~(E & A2 & A1 & ~A0); assign Y7_n = ~(E & A2 & A1 & A0); endmodule module decoder0( input A , input B , input C , output wire L ); wire [7:0] Y_n; assign L = ~(Y_n[1] & Y_n[3] & Y_n[6] & Y_n[7]); decoder_38 u_decoder_38( .E1_n(1'b0) , .E2_n(1'b0) , .E3(1'b1) , .A0(C) , .A1(B) , .A2(A) , .Y0_n(Y_n[0]) , .Y1_n(Y_n[1]) , .Y2_n(Y_n[2]) , .Y3_n(Y_n[3]) , .Y4_n(Y_n[4]) , .Y5_n(Y_n[5]) , .Y6_n(Y_n[6]) , .Y7_n(Y_n[7]) ); endmodule