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