Subversion Repositories dma_axi

/////////////////////////////////////////////////////////////////////

////                                                             ////

////  Author: Eyal Hochberg                                      ////

////          eyal@provartec.com                                 ////

////                                                             ////

////  Downloaded from: http://www.opencores.org                  ////

/////////////////////////////////////////////////////////////////////

////                                                             ////

//// Copyright (C) 2010 Provartec LTD                            ////

//// www.provartec.com                                           ////

//// info@provartec.com                                          ////

////                                                             ////

//// This source file may be used and distributed without        ////

//// restriction provided that this copyright statement is not   ////

//// removed from the file and that any derivative work contains ////

//// the original copyright notice and the associated disclaimer.////

////                                                             ////

//// This source file is free software; you can redistribute it  ////

//// and/or modify it under the terms of the GNU Lesser General  ////

//// Public License as published by the Free Software Foundation.////

////                                                             ////

//// This source is distributed in the hope that it will be      ////

//// useful, but WITHOUT ANY WARRANTY; without even the implied  ////

//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR     ////

//// PURPOSE.  See the GNU Lesser General Public License for more////

//// details. http://www.gnu.org/licenses/lgpl.html              ////

////                                                             ////

/////////////////////////////////////////////////////////////////////

//---------------------------------------------------------

//-- File generated by RobustVerilog parser

//-- Version: 1.0

//-- Invoked Fri Mar 25 23:34:52 2011

//--

//-- Source file: dma_core_axim_resp.v

//---------------------------------------------------------

module dma_axi32_core0_axim_resp(clk,reset,slverr,decerr,clr,clr_last,ch_num_resp,resp_full,AID,AVALID,AREADY,RESP,ID,VALID,READY,LAST);

   parameter                  CMD_DEPTH = 8;

   input               clk;

   input               reset;

   output               slverr;

   output               decerr;

   output               clr;

   output               clr_last;

   output [2:0]           ch_num_resp;

   output               resp_full;

   input [`CMD_BITS-1:0]      AID;

   input               AVALID;

   input               AREADY;

   input [1:0]               RESP;

   output [`CMD_BITS-1:0]     ID;

   input               VALID;

   input               READY;

   input               LAST;

   parameter                  RESP_SLVERR = 2'b10;

   parameter                  RESP_DECERR = 2'b11;

   wire               clr_pre;

   wire [2:0]               ch_num_resp_pre;

   wire               clr_last_pre;

   wire               slverr_pre;

   wire               decerr_pre;

   reg [2:0]               ch_num_resp;

   wire               resp_push;

   wire               resp_pop;

   wire               resp_empty;

   wire               resp_full;

   wire [`CMD_BITS-1:0]       ID;

   assign               resp_push       = AVALID & AREADY;

   assign               resp_pop        = VALID & READY & LAST;

   assign               clr_pre         = resp_pop;

   assign               ch_num_resp_pre = ID[2:0] ;

   assign               slverr_pre      = clr_pre & RESP == RESP_SLVERR;

   assign               decerr_pre      = clr_pre & RESP == RESP_DECERR;

   assign               clr_last_pre    = clr_pre & ID[3];

   prgen_delay #(1) delay_clr(.clk(clk), .reset(reset), .din(clr_pre), .dout(clr));

   prgen_delay #(1) delay_clr_last(.clk(clk), .reset(reset), .din(clr_last_pre), .dout(clr_last));

   prgen_delay #(1) delay_slverr(.clk(clk), .reset(reset), .din(slverr_pre), .dout(slverr));

   prgen_delay #(1) delay_decerr(.clk(clk), .reset(reset), .din(decerr_pre), .dout(decerr));

   always @(posedge clk or posedge reset)

     if (reset)

       ch_num_resp <= #1 3'b000;

     else if (clr_pre)

       ch_num_resp <= #1 ch_num_resp_pre;

   prgen_fifo #(`CMD_BITS, CMD_DEPTH)

   resp_fifo(

         .clk(clk),

         .reset(reset),

         .push(resp_push),

         .pop(resp_pop),

         .din(AID),

         .dout(ID),

         .empty(resp_empty),

         .full(resp_full)

         );

endmodule