1 // date :2013/6/11
2 //designer :pengxiaoen
3 //function :parallel to serial
4
5 module parallel_to_serial (
6 clk_ps,reset_ps,
7 parallel_in,
8 status_ps, // 1: read 0:out
9 serial_out);
10 input clk_ps,reset_ps;
11 input [7:0] parallel_in;
12 input status_ps;
13 output serial_out;
14
15 reg [7:0] parallel_reg;
16
17 always @ (posedge clk_ps or negedge reset_ps)
18 if(!reset_ps)
19 parallel_reg <= 8'd0;
20 else if (status_ps)
21 parallel_reg <= parallel_in;
22 else parallel_reg <= {parallel_reg,1'b0};
23
24 assign serial_out = parallel_reg[7];
25
26 endmodule
