Subversion Repositories dma_ahb

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

////                                                             ////

////  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 23:31:21 2011

//--

//-- Source file: dma_apb_mux.v

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

module  dma_ahb32_apb_mux (clk,reset,pclken,psel,penable,pwrite,paddr,prdata,pslverr,pready,psel0,prdata0,pslverr0,psel1,prdata1,pslverr1,psel_reg,prdata_reg,pslverr_reg);

   input                 clk;

   input                 reset;

   input                 pclken;

   input                 psel;

   input                 penable;

   input          pwrite;

   input [12:11]      paddr;

   output [31:0]         prdata;

   output          pslverr;

   output          pready;

   output          psel0;

   input [31:0]      prdata0;

   input           pslverr0;

   output          psel1;

   input [31:0]      prdata1;

   input           pslverr1;

   output          psel_reg;

   input [31:0]      prdata_reg;

   input           pslverr_reg;

   wire [31:0]          prdata_pre;

   wire          pslverr_pre;

   reg              pready;

   assign          psel0    = pclken & psel & (paddr[12:11] == 2'b00);

   assign          psel1    = pclken & psel & (paddr[12:11] == 2'b01);

   assign          psel_reg = pclken & psel & (paddr[12] == 1'b1);

   assign          prdata_pre  = prdata0 | prdata1 | prdata_reg;

   assign          pslverr_pre = pslverr0 | pslverr1 | pslverr_reg;

   assign          prdata = prdata_pre;

   assign          pslverr = pslverr_pre;

   always @(posedge clk or posedge reset)

     if (reset)

       pready <= #1 1'b0;

     else if (pclken)

       pready <= #1 psel & (~penable);

endmodule