techlibs/ecp5/abc9_map.v

   1 // ---------------------------------------
   2
   3 // Attach a (combinatorial) black-box onto the output
   4 //   of this LUTRAM primitive to capture its
   5 //   asynchronous read behaviour
   6 module TRELLIS_DPR16X4 (
   7         (* techmap_autopurge *) input  [3:0] DI,
   8         (* techmap_autopurge *) input  [3:0] WAD,
   9         (* techmap_autopurge *) input        WRE,
  10         (* techmap_autopurge *) input        WCK,
  11         (* techmap_autopurge *) input  [3:0] RAD,
  12         output [3:0] DO
  13 );
  14         parameter WCKMUX = "WCK";
  15         parameter WREMUX = "WRE";
  16         parameter [63:0] INITVAL = 64'h0000000000000000;
  17     wire [3:0] $DO;
  18
  19     TRELLIS_DPR16X4 #(
  20       .WCKMUX(WCKMUX), .WREMUX(WREMUX), .INITVAL(INITVAL)
  21     ) _TECHMAP_REPLACE_ (
  22       .DI(DI), .WAD(WAD), .WRE(WRE), .WCK(WCK),
  23       .RAD(RAD), .DO($DO)
  24     );
  25
  26     $__ABC9_DPR16X4_COMB do (.$DO($DO), .RAD(RAD), .DO(DO));
  27 endmodule