File: round_sd.v

package info (click to toggle)
uhd 3.7.2-1%2Bbpo70%2B1
  • links: PTS
  • area: main
  • in suites: wheezy-backports
  • size: 491,920 kB
  • sloc: ansic: 51,090; cpp: 42,636; xml: 19,627; vhdl: 14,556; tcl: 6,633; python: 5,870; ada: 2,760; sh: 2,533; makefile: 610; pascal: 230; csh: 224; perl: 11
file content (23 lines) | stat: -rw-r--r-- 774 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 


module round_sd
  #(parameter WIDTH_IN=18,
    parameter WIDTH_OUT=16,
    parameter DISABLE_SD=0)
   (input clk, input reset,
    input [WIDTH_IN-1:0] in, input strobe_in,
    output [WIDTH_OUT-1:0] out, output strobe_out);

   localparam ERR_WIDTH = WIDTH_IN - WIDTH_OUT + 1;

   wire [ERR_WIDTH-1:0]  err;
   wire [WIDTH_IN-1:0] 	 err_ext, sum;
  
   sign_extend #(.bits_in(ERR_WIDTH),.bits_out(WIDTH_IN)) ext_err (.in(err), .out(err_ext));
   
   add2_and_clip_reg #(.WIDTH(WIDTH_IN)) add2_and_clip_reg
     (.clk(clk), .rst(reset), .in1(in), .in2((DISABLE_SD == 0) ? err_ext : 0), .strobe_in(strobe_in), .sum(sum), .strobe_out(strobe_out));
   
   round #(.bits_in(WIDTH_IN),.bits_out(WIDTH_OUT)) round_sum (.in(sum), .out(out), .err(err));
   
endmodule // round_sd