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[/] [w11/] [tags/] [w11a_V0.5/] [rtl/] [bplib/] [s3board/] [s3_sram_dummy.vhd] - Rev 37
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-- $Id: s3_sram_dummy.vhd 314 2010-07-09 17:38:41Z mueller $ -- -- Copyright 2007-2010 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de> -- -- This program is free software; you may redistribute and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation, either version 2, or at your option any later version. -- -- This program 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 General Public License -- for complete details. -- ------------------------------------------------------------------------------ -- Module Name: s3_sram_dummy - syn -- Description: s3board: SRAM protection dummy -- -- Dependencies: - -- Test bench: - -- Target Devices: generic -- Tool versions: xst 8.1, 8.2, 9.1, 9.2, 11.4; ghdl 0.18-0.26 -- Revision History: -- Date Rev Version Comment -- 2010-04-17 278 1.0.2 renamed from sram_dummy -- 2007-12-09 101 1.0.1 use _N for active low -- 2007-12-08 100 1.0 Initial version ------------------------------------------------------------------------------ library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use work.slvtypes.all; entity s3_sram_dummy is -- SRAM protection dummy port ( O_MEM_CE_N : out slv2; -- sram: chip enables (act.low) O_MEM_BE_N : out slv4; -- sram: byte enables (act.low) O_MEM_WE_N : out slbit; -- sram: write enable (act.low) O_MEM_OE_N : out slbit; -- sram: output enable (act.low) O_MEM_ADDR : out slv18; -- sram: address lines IO_MEM_DATA : inout slv32 -- sram: data lines ); end s3_sram_dummy; architecture syn of s3_sram_dummy is begin O_MEM_CE_N <= "11"; -- disable sram chips O_MEM_BE_N <= "1111"; O_MEM_WE_N <= '1'; O_MEM_OE_N <= '1'; O_MEM_ADDR <= (others=>'0'); IO_MEM_DATA <= (others=>'0'); end syn;
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