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Altera_UP_SYNC_FIFO.v
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Altera_UP_SYNC_FIFO.v
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/******************************************************************************
* License Agreement *
* *
* Copyright (c) 1991-2009 Altera Corporation, San Jose, California, USA. *
* All rights reserved. *
* *
* Any megafunction design, and related net list (encrypted or decrypted), *
* support information, device programming or simulation file, and any other *
* associated documentation or information provided by Altera or a partner *
* under Altera's Megafunction Partnership Program may be used only to *
* program PLD devices (but not masked PLD devices) from Altera. Any other *
* use of such megafunction design, net list, support information, device *
* programming or simulation file, or any other related documentation or *
* information is prohibited for any other purpose, including, but not *
* limited to modification, reverse engineering, de-compiling, or use with *
* any other silicon devices, unless such use is explicitly licensed under *
* a separate agreement with Altera or a megafunction partner. Title to *
* the intellectual property, including patents, copyrights, trademarks, *
* trade secrets, or maskworks, embodied in any such megafunction design, *
* net list, support information, device programming or simulation file, or *
* any other related documentation or information provided by Altera or a *
* megafunction partner, remains with Altera, the megafunction partner, or *
* their respective licensors. No other licenses, including any licenses *
* needed under any third party's intellectual property, are provided herein.*
* Copying or modifying any file, or portion thereof, to which this notice *
* is attached violates this copyright. *
* *
* THIS FILE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
* FROM, OUT OF OR IN CONNECTION WITH THIS FILE OR THE USE OR OTHER DEALINGS *
* IN THIS FILE. *
* *
* This agreement shall be governed in all respects by the laws of the State *
* of California and by the laws of the United States of America. *
* *
******************************************************************************/
/******************************************************************************
* *
* This module is a FIFO with same clock for both reads and writes. *
* *
******************************************************************************/
module Altera_UP_SYNC_FIFO (
// Inputs
clk,
reset,
write_en,
write_data,
read_en,
// Bidirectionals
// Outputs
fifo_is_empty,
fifo_is_full,
words_used,
read_data
);
/*****************************************************************************
* Parameter Declarations *
*****************************************************************************/
parameter DATA_WIDTH = 32;
parameter DATA_DEPTH = 128;
parameter ADDR_WIDTH = 7;
/*****************************************************************************
* Port Declarations *
*****************************************************************************/
// Inputs
input clk;
input reset;
input write_en;
input [DATA_WIDTH:1] write_data;
input read_en;
// Bidirectionals
// Outputs
output fifo_is_empty;
output fifo_is_full;
output [ADDR_WIDTH:1] words_used;
output [DATA_WIDTH:1] read_data;
/*****************************************************************************
* Internal wires and registers Declarations *
*****************************************************************************/
// Internal Wires
// Internal Registers
// State Machine Registers
/*****************************************************************************
* Finite State Machine(s) *
*****************************************************************************/
/*****************************************************************************
* Sequential logic *
*****************************************************************************/
/*****************************************************************************
* Combinational logic *
*****************************************************************************/
/*****************************************************************************
* Internal Modules *
*****************************************************************************/
scfifo Sync_FIFO (
// Inputs
.clock (clk),
.sclr (reset),
.data (write_data),
.wrreq (write_en),
.rdreq (read_en),
// Bidirectionals
// Outputs
.empty (fifo_is_empty),
.full (fifo_is_full),
.usedw (words_used),
.q (read_data)
// Unused
// synopsys translate_off
,
.aclr (),
.almost_empty (),
.almost_full ()
// synopsys translate_on
);
defparam
Sync_FIFO.add_ram_output_register = "OFF",
Sync_FIFO.intended_device_family = "Cyclone II",
Sync_FIFO.lpm_numwords = DATA_DEPTH,
Sync_FIFO.lpm_showahead = "ON",
Sync_FIFO.lpm_type = "scfifo",
Sync_FIFO.lpm_width = DATA_WIDTH,
Sync_FIFO.lpm_widthu = ADDR_WIDTH,
Sync_FIFO.overflow_checking = "OFF",
Sync_FIFO.underflow_checking = "OFF",
Sync_FIFO.use_eab = "ON";
endmodule