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[/] [t48/] [tags/] [rel_0_2_beta/] [rtl/] [vhdl/] [system/] [syn_rom-lpm-a.vhd] - Rev 252
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------------------------------------------------------------------------------- -- -- A synchronous parametrizable ROM instantiating a standard ROM from -- the Altera LPM. -- -- $Id: syn_rom-lpm-a.vhd,v 1.1 2004-03-24 21:32:27 arniml Exp $ -- -- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org) -- -- All rights reserved -- -- Redistribution and use in source and synthezised forms, with or without -- modification, are permitted provided that the following conditions are met: -- -- Redistributions of source code must retain the above copyright notice, -- this list of conditions and the following disclaimer. -- -- Redistributions in synthesized form must reproduce the above copyright -- notice, this list of conditions and the following disclaimer in the -- documentation and/or other materials provided with the distribution. -- -- Neither the name of the author nor the names of other contributors may -- be used to endorse or promote products derived from this software without -- specific prior written permission. -- -- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, -- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE -- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -- POSSIBILITY OF SUCH DAMAGE. -- -- Please report bugs to the author, but before you do so, please -- make sure that this is not a derivative work and that -- you have the latest version of this file. -- -- The latest version of this file can be found at: -- http://www.opencores.org/cvsweb.shtml/t48/ -- ------------------------------------------------------------------------------- library ieee; use ieee.std_logic_1164.all; architecture lpm of syn_rom is component lpm_rom generic ( LPM_WIDTH : positive; LPM_TYPE : string := "LPM_ROM"; LPM_WIDTHAD : positive; LPM_NUMWORDS : natural := 0; LPM_FILE : string; LPM_ADDRESS_CONTROL : string := "REGISTERED"; LPM_OUTDATA : string := "REGISTERED"; LPM_HINT : string := "UNUSED" ); port ( address : in std_logic_vector(LPM_WIDTHAD-1 downto 0); inclock : in std_logic; memenab : in std_logic; q : out std_logic_vector(LPM_WIDTH-1 downto 0) ); end component; signal one_s : std_logic; begin one_s <= '1'; rom_b : lpm_rom generic map ( LPM_WIDTH => 8, LPM_TYPE => "LPM_ROM", LPM_WIDTHAD => address_width_g, LPM_NUMWORDS => 2 ** address_width_g, LPM_FILE => "t48_rom.hex", LPM_ADDRESS_CONTROL => "REGISTERED", LPM_OUTDATA => "UNREGISTERED", LPM_HINT => "UNUSED" ) port map ( address => rom_addr_i, inclock => clk_i, memenab => one_s, q => rom_data_o ); end lpm; ------------------------------------------------------------------------------- -- File History: -- -- $Log: not supported by cvs2svn $ -------------------------------------------------------------------------------
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