Subversion Repositories qaz_libs

// --------------------------------------------------------------------
//
 
 
module
  fifo1
  #(
    parameter DSIZE = 8,
    parameter ASIZE = 4
  )
  (
    output [DSIZE-1:0]  rdata,
    output              wfull,
    output              rempty,
    input [DSIZE-1:0]   wdata,
    input               winc,
    input               wclk,
    input               wrst_n,
    input               rinc,
    input               rclk,
    input               rrst_n
  );
 
  wire [ASIZE-1:0] waddr, raddr;
  wire [ASIZE:0] wptr, rptr, wq2_rptr, rq2_wptr;
 
  sync_r2w sync_r2w (.wq2_rptr(wq2_rptr), .rptr(rptr),
  .wclk(wclk), .wrst_n(wrst_n));
 
  sync_w2r sync_w2r (.rq2_wptr(rq2_wptr), .wptr(wptr),
  .rclk(rclk), .rrst_n(rrst_n));
 
  fifomem #(DSIZE, ASIZE) fifomem
  (.rdata(rdata), .wdata(wdata),
  .waddr(waddr), .raddr(raddr),
  .wclken(winc), .wfull(wfull),
  .wclk(wclk));
 
  rptr_empty #(ASIZE) rptr_empty
  (.rempty(rempty),
  .raddr(raddr),
  .rptr(rptr), .rq2_wptr(rq2_wptr),
  .rinc(rinc), .rclk(rclk),
  .rrst_n(rrst_n));
 
  wptr_full #(ASIZE) wptr_full
  (.wfull(wfull), .waddr(waddr),
  .wptr(wptr), .wq2_rptr(wq2_rptr),
  .winc(winc), .wclk(wclk),
  .wrst_n(wrst_n));
 
endmodule