| 1 |
2 |
mihad |
//////////////////////////////////////////////////////////////////////
|
| 2 |
|
|
//// ////
|
| 3 |
|
|
//// File name "bus_commands.v" ////
|
| 4 |
|
|
//// ////
|
| 5 |
|
|
//// This file is part of the "PCI bridge" project ////
|
| 6 |
|
|
//// http://www.opencores.org/cores/pci/ ////
|
| 7 |
|
|
//// ////
|
| 8 |
|
|
//// Author(s): ////
|
| 9 |
|
|
//// - Miha Dolenc (mihad@opencores.org) ////
|
| 10 |
|
|
//// ////
|
| 11 |
|
|
//// All additional information is avaliable in the README.pdf ////
|
| 12 |
|
|
//// file. ////
|
| 13 |
|
|
//// ////
|
| 14 |
|
|
//// ////
|
| 15 |
|
|
//////////////////////////////////////////////////////////////////////
|
| 16 |
|
|
//// ////
|
| 17 |
|
|
//// Copyright (C) 2001 Miha Dolenc, mihad@opencores.org ////
|
| 18 |
|
|
//// ////
|
| 19 |
|
|
//// This source file may be used and distributed without ////
|
| 20 |
|
|
//// restriction provided that this copyright statement is not ////
|
| 21 |
|
|
//// removed from the file and that any derivative work contains ////
|
| 22 |
|
|
//// the original copyright notice and the associated disclaimer. ////
|
| 23 |
|
|
//// ////
|
| 24 |
|
|
//// This source file is free software; you can redistribute it ////
|
| 25 |
|
|
//// and/or modify it under the terms of the GNU Lesser General ////
|
| 26 |
|
|
//// Public License as published by the Free Software Foundation; ////
|
| 27 |
|
|
//// either version 2.1 of the License, or (at your option) any ////
|
| 28 |
|
|
//// later version. ////
|
| 29 |
|
|
//// ////
|
| 30 |
|
|
//// This source is distributed in the hope that it will be ////
|
| 31 |
|
|
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
|
| 32 |
|
|
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
|
| 33 |
|
|
//// PURPOSE. See the GNU Lesser General Public License for more ////
|
| 34 |
|
|
//// details. ////
|
| 35 |
|
|
//// ////
|
| 36 |
|
|
//// You should have received a copy of the GNU Lesser General ////
|
| 37 |
|
|
//// Public License along with this source; if not, download it ////
|
| 38 |
|
|
//// from http://www.opencores.org/lgpl.shtml ////
|
| 39 |
|
|
//// ////
|
| 40 |
|
|
//////////////////////////////////////////////////////////////////////
|
| 41 |
|
|
//
|
| 42 |
|
|
// CVS Revision History
|
| 43 |
|
|
//
|
| 44 |
|
|
// $Log: not supported by cvs2svn $
|
| 45 |
|
|
// Revision 1.1 2001/07/16 15:27:06 mihad
|
| 46 |
|
|
// PCI bus command definitions - must be used in any module that uses PCI bus
|
| 47 |
|
|
// command encodings for avoiding errors etc.
|
| 48 |
|
|
//
|
| 49 |
|
|
//
|
| 50 |
|
|
|
| 51 |
|
|
// definitions of PCI bus commands
|
| 52 |
|
|
`define BC_IACK 4'h0 //used
|
| 53 |
|
|
`define BC_SPECIAL 4'h1 //not used
|
| 54 |
|
|
`define BC_IO_READ 4'h2 //used
|
| 55 |
|
|
`define BC_IO_WRITE 4'h3 //used
|
| 56 |
|
|
`define BC_RESERVED0 4'h4 //not used
|
| 57 |
|
|
`define BC_RESERVED1 4'h5 //not used
|
| 58 |
|
|
`define BC_MEM_READ 4'h6 //used
|
| 59 |
|
|
`define BC_MEM_WRITE 4'h7 //used
|
| 60 |
|
|
`define BC_RESERVED2 4'h8 //not used
|
| 61 |
|
|
`define BC_RESERVED3 4'h9 //not used
|
| 62 |
|
|
`define BC_CONF_READ 4'hA //used
|
| 63 |
|
|
`define BC_CONF_WRITE 4'hB //used
|
| 64 |
|
|
`define BC_MEM_READ_MUL 4'hC //used
|
| 65 |
|
|
`define BC_DUAL_ADDR_CYC 4'hD //not used
|
| 66 |
|
|
`define BC_MEM_READ_LN 4'hE //used
|
| 67 |
|
|
`define BC_MEM_WRITE_INVAL 4'hF //not used
|
