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////  File name "wb_model_defines.v"                              ////

////                                                              ////

////  This file is part of the Ethernet IP core project           ////

////  http://www.opencores.org/projects/ethmac/                   ////

////                                                              ////

////  Author(s):                                                  ////

////      - Miha Dolenc (mihad@opencores.org)                     ////

////                                                              ////

////  All additional information is available in the README.pdf   ////

////  file.                                                       ////

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////                                                              ////

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//// Copyright (C) 2002 Authors                                   ////

////                                                              ////

//// 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. ////

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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; ////

//// either version 2.1 of the License, or (at your option) any   ////

//// later version.                                               ////

////                                                              ////

//// 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.                                                     ////

////                                                              ////

//// You should have received a copy of the GNU Lesser General    ////

//// Public License along with this source; if not, download it   ////

//// from http://www.opencores.org/lgpl.shtml                     ////

////                                                              ////

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

//

// CVS Revision History

//

// $Log: not supported by cvs2svn $

// Revision 1.2  2002/09/13 12:29:14  mohor

// Headers changed.

//

//

//

//

// WISHBONE frequency in GHz

`define WB_FREQ 0.100

// memory frequency in GHz

`define MEM_FREQ 0.100

// setup and hold time definitions for WISHBONE - used in BFMs for signal generation

`define Tsetup 4

`define Thold  1

// how many clock cycles should model wait for design's response - integer 32 bit value

`define WAIT_FOR_RESPONSE 1023

// maximum number of transactions allowed in single call to block or cab transfer routines

`define MAX_BLK_SIZE  1024

// maximum retry terminations allowed for WISHBONE master to repeat an access

`define WB_TB_MAX_RTY 0

// some common types and defines

`define WB_ADDR_WIDTH 32

`define WB_DATA_WIDTH 32

`define WB_SEL_WIDTH `WB_DATA_WIDTH/8

`define WB_TAG_WIDTH 5

`define WB_ADDR_TYPE [(`WB_ADDR_WIDTH - 1):0]

`define WB_DATA_TYPE [(`WB_DATA_WIDTH - 1):0]

`define WB_SEL_TYPE  [(`WB_SEL_WIDTH  - 1):0]

`define WB_TAG_TYPE  [(`WB_TAG_WIDTH  - 1):0]

// read cycle stimulus - consists of:

//    - address field - which address read will be performed from

//    - sel field     - what byte select value should be

//    - tag field     - what tag values should be put on the bus

`define READ_STIM_TYPE [(`WB_ADDR_WIDTH + `WB_SEL_WIDTH + `WB_TAG_WIDTH - 1):0]

`define READ_STIM_LENGTH (`WB_ADDR_WIDTH + `WB_SEL_WIDTH + `WB_TAG_WIDTH)

`define READ_ADDRESS  [(`WB_ADDR_WIDTH - 1):0]

`define READ_SEL      [(`WB_ADDR_WIDTH + `WB_SEL_WIDTH - 1):`WB_ADDR_WIDTH]

`define READ_TAG_STIM [(`WB_ADDR_WIDTH + `WB_SEL_WIDTH + `WB_TAG_WIDTH - 1):(`WB_ADDR_WIDTH + `WB_SEL_WIDTH)]

// read cycle return type consists of:

//    - read data field

//    - tag field received from WISHBONE

//    - wishbone slave response fields - ACK, ERR and RTY

//    - test bench error indicator (when testcase has not used wb master model properly)

//    - how much data was actually transfered

`define READ_RETURN_TYPE [(32 + 4 + `WB_DATA_WIDTH + `WB_TAG_WIDTH - 1):0]

`define READ_DATA        [(32 + `WB_DATA_WIDTH + 4 - 1):32 + 4]

`define READ_TAG_RET     [(32 + 4 + `WB_DATA_WIDTH + `WB_TAG_WIDTH - 1):(`WB_DATA_WIDTH + 32 + 4)]

`define READ_RETURN_LENGTH (32 + 4 + `WB_DATA_WIDTH + `WB_TAG_WIDTH - 1)

// write cycle stimulus type consists of

//    - address field

//    - data field

//    - sel field

//    - tag field

`define WRITE_STIM_TYPE [(`WB_ADDR_WIDTH + `WB_DATA_WIDTH + `WB_SEL_WIDTH + `WB_TAG_WIDTH - 1):0]

`define WRITE_ADDRESS       [(`WB_ADDR_WIDTH - 1):0]

`define WRITE_DATA          [(`WB_ADDR_WIDTH + `WB_DATA_WIDTH - 1):`WB_ADDR_WIDTH]

`define WRITE_SEL           [(`WB_ADDR_WIDTH + `WB_DATA_WIDTH + `WB_SEL_WIDTH - 1):(`WB_ADDR_WIDTH + `WB_DATA_WIDTH)]

`define WRITE_TAG_STIM      [(`WB_ADDR_WIDTH + `WB_DATA_WIDTH + `WB_SEL_WIDTH + `WB_TAG_WIDTH - 1):(`WB_ADDR_WIDTH + `WB_DATA_WIDTH + `WB_SEL_WIDTH)]

// length of WRITE_STIMULUS

`define WRITE_STIM_LENGTH (`WB_ADDR_WIDTH + `WB_DATA_WIDTH + `WB_SEL_WIDTH + `WB_TAG_WIDTH)

// write cycle return type consists of:

//    - test bench error indicator (when testcase has not used wb master model properly)

//    - wishbone slave response fields - ACK, ERR and RTY

//    - tag field received from WISHBONE

//    - how much data was actually transfered

`define WRITE_RETURN_TYPE [(32 + 4 + `WB_TAG_WIDTH - 1):0]

`define WRITE_TAG_RET     [(32 + 4 + `WB_TAG_WIDTH - 1):32 + 4]

// this four fields are common to both read and write routines return values

`define TB_ERROR_BIT [0]

`define CYC_ACK [1]

`define CYC_RTY [2]

`define CYC_ERR [3]

`define CYC_RESPONSE [3:1]

`define CYC_ACTUAL_TRANSFER [35:4]

// block transfer flags

`define WB_TRANSFER_FLAGS [41:0]

// consists of:

// - number of transfer cycles to perform

// - flag that enables retry termination handling - if disabled, block transfer routines will return on any termination other than acknowledge

// - flag indicating CAB transfer is to be performed - ignored by all single transfer routines

// - number of initial wait states to insert

// - number of subsequent wait states to insert

`define WB_TRANSFER_SIZE     [41:10]

`define WB_TRANSFER_AUTO_RTY [8]

`define WB_TRANSFER_CAB      [9]

`define INIT_WAITS           [3:0]

`define SUBSEQ_WAITS         [7:4]

// wb slave response

`define ACK_RESPONSE  3'b100

`define ERR_RESPONSE  3'b010

`define RTY_RESPONSE  3'b001

`define NO_RESPONSE   3'b000