`timescale 1ns/1ns module sequence_detect( input clk, input rst_n, input data, input data_valid, output reg match ); reg [3:0] q;//4位寄存器,用于存放data序列 always @(posedge clk or negedge rst_n) begin if(!rst_n) q <= 4'd0; else if(data_valid)//data_valid为高,寄存data,否则锁存q序列 q <= {q[2:0],data}; else q <...