P5-35 16bit ODD Parity (by 8bit odd_parity)

P5-35 16bit ODD Parity (by 8bit odd_parity)

//test bench//

 `timescale 1 ns/1 ps

 module odd_tb();

 reg [15:0]din;

 wire odd_parity;

 odd_parity_16  uut (.din(din),

             .odd_parity16(odd_parity));

 initial

 begin

 $display("time,\t din,\t parity ");

 $monitor("%g,\t %b,\t %b",$time,din,odd_parity);

 din=16'd0;

 #10  din=16'd10;

 #20  din=16'd20;

 #30  din=16'd21;

 #40  din=16'd255;

 #50  din=16'd254;

 #60  din=16'd221;

 #70  din=16'd198;

 #80  din=16'd65535;

 #90  din=16'd65534;

end

 initial

   #500 $stop;

 endmodule

//=====================================

//check odd parity 

//filename : odd_parity_16.v

 `timescale 1 ns/1 ps

module odd_parity_16( din,odd_parity16);

output odd_parity16;

input [15:0] din;

wire odd_parity1,odd_parity2;

odd_parity_8 uut1 (.din(din[7:0]),

                      .odd_parity8(odd_parity1));

odd_parity_8  uut2 (.din(din[15:8]),

                      .odd_parity8(odd_parity2));

assign odd_parity16 =odd_parity1^odd_parity2;

endmodule

//=============================================

//check odd parity 

//filename : odd_parity_8.v

 `timescale 1 ns/1 ps

module odd_parity_8( din,odd_parity8);

output odd_parity8;

input  [7:0] din;

assign odd_parity8 = ^ din;

endmodule