Subversion Repositories robust_axi2apb

<##//////////////////////////////////////////////////////////////////

////                                                             ////

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

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

////                                                             ////

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

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

////                                                             ////

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

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

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

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

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//// 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.////

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

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//////////////////////////////////////////////////////////////////##>

INCLUDE def_axi2apb.txt

OUTFILE PREFIX_rd.v

module  PREFIX_rd (PORTS);

   input                          clk;

   input                          reset;

   input                  GROUP_APB3;

   input                  cmd_err;

   input [ID_BITS-1:0]    cmd_id;

   output                 finish_rd;

   port                   RGROUP_APB_AXI_R;

   parameter              RESP_OK     = 2'b00;

   parameter              RESP_SLVERR = 2'b10;

   parameter              RESP_DECERR = 2'b11;

   reg                    RGROUP_APB_AXI_R.OUT;

   assign                 finish_rd = RVALID & RREADY & RLAST;

   always @(posedge clk or posedge reset)

     if (reset)

           begin

         RGROUP_APB_AXI_R.OUT <= #FFD {GROUP_APB_AXI_R.OUT.WIDTH{1'b0}};

           end

         else if (finish_rd)

           begin

         RGROUP_APB_AXI_R.OUT <= #FFD {GROUP_APB_AXI_R.OUT.WIDTH{1'b0}};

           end

         else if (psel & penable & (~pwrite) & pready)

           begin

             RID    <= #FFD cmd_id;

                 RDATA  <= #FFD prdata;

                 RRESP  <= #FFD cmd_err ? RESP_SLVERR : pslverr ? RESP_DECERR : RESP_OK;

                 RLAST  <= #FFD 1'b1;

                 RVALID <= #FFD 1'b1;

           end

endmodule