techlibs/common/adff2dff.v

   1 (* techmap_celltype = "$adff" *)
   2 module adff2dff (CLK, ARST, D, Q);
   3         parameter WIDTH = 1;
   4         parameter CLK_POLARITY = 1;
   5         parameter ARST_POLARITY = 1;
   6         parameter ARST_VALUE = 0;
   7
   8         input CLK, ARST;
   9         input [WIDTH-1:0] D;
  10         output reg [WIDTH-1:0] Q;
  11         wire reg [WIDTH-1:0] NEXT_Q;
  12
  13         wire [1023:0] _TECHMAP_DO_ = "proc;;";
  14
  15         always @*
  16                 if (ARST == ARST_POLARITY)
  17                         NEXT_Q <= ARST_VALUE;
  18                 else
  19                         NEXT_Q <= D;
  20
  21         if (CLK_POLARITY)
  22                 always @(posedge CLK)
  23                         Q <= NEXT_Q;
  24         else
  25                 always @(negedge CLK)
  26                         Q <= NEXT_Q;
  27 endmodule