OpenCores
URL https://opencores.org/ocsvn/System09/System09/trunk

Subversion Repositories System09

[/] [System09/] [trunk/] [rtl/] [Spartan3/] [keymap_rom512_b4.vhd] - Diff between revs 66 and 99

Go to most recent revision | Only display areas with differences | Details | Blame | View Log

Rev 66 Rev 99
---------------------------------------------------------
--===========================================================================--
 
--                                                                           --
 
--         Synthesizable PS/2 Keyboard Key map ROM for the Spartan 2         --
 
--                                                                           --
 
--===========================================================================--
--
--
-- PS2 Keycode look up table
--  File name      : keymap_rom512_b4.vhd
-- converts 7 bit key code to ASCII
--
-- Address bit 7 = CAPS Lock
--  Entity name    : keymap_rom 
 
--
 
--  Purpose        : PS/2 key code look up table for PS/2 Keyboard
 
--                   Converts 7 bit key code to ASCII
-- Address bit 8 = Shift
-- Address bit 8 = Shift
 
--                   Address bit 7      = CAPS Lock
 
--                   Address bits 6 - 0 = Key code
 
--                   Data bits 6 - 0    = ASCII code
 
--                   Designed for the Spartan 2
 
--
 
--  Dependencies   : ieee.std_logic_1164
 
--                   ieee.std_logic_arith
 
--                   ieee.std_logic_unsigned
 
--
 
--  Uses           : RAMB4_S8
 
--
 
--  Author         : John E. Kent
 
--
 
--  Email          : dilbert57@opencores.org      
 
--
 
--  Web            : http://opencores.org/project,system09
 
--
 
--  Copyright (C) 2004 - 2010 John Kent
 
--
 
--  This program is free software: you can redistribute it and/or modify
 
--  it under the terms of the GNU General Public License as published by
 
--  the Free Software Foundation, either version 3 of the License, 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 more details.
 
--
 
--  You should have received a copy of the GNU General Public License
 
--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
--
 
--===========================================================================--
 
--                                                                           --
 
--                              Revision  History                            --
 
--                                                                           --
 
--===========================================================================--
 
--
 
-- Version Date        Author     Changes
 
-- 0.1     2004-10-18  John Kent  Initial Version
 
-- 0.2     2010-06-17  John Kent  Added header, Rename data signals
--
--
-- J.E.Kent
 
-- 18th Oct 2004
 
--
--
library IEEE;
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
library unisim;
library unisim;
        use unisim.vcomponents.all;
        use unisim.vcomponents.all;
 
 
entity keymap_rom is
entity keymap_rom is
    Port (
    Port (
       clk   : in  std_logic;
       clk      : in  std_logic;
       rst   : in  std_logic;
       rst      : in  std_logic;
       cs    : in  std_logic;
       cs    : in  std_logic;
       rw    : in  std_logic;
 
       addr  : in  std_logic_vector (8 downto 0);
       addr  : in  std_logic_vector (8 downto 0);
       rdata : out std_logic_vector (7 downto 0);
       rw       : in  std_logic;
       wdata : in  std_logic_vector (7 downto 0)
       data_in  : in  std_logic_vector (7 downto 0);
 
       data_out : out std_logic_vector (7 downto 0)
    );
    );
end keymap_rom;
end keymap_rom;
 
 
architecture rtl of keymap_rom is
architecture rtl of keymap_rom is
 
 
 
 
signal we : std_logic;
signal we : std_logic;
 
 
begin
begin
 
 
  ROM : RAMB4_S8
  ROM : RAMB4_S8
    generic map (
    generic map (
    INIT_00 => x"00327761737a0000003171000000000000600900000000000000000000000000",
    INIT_00 => x"00327761737a0000003171000000000000600900000000000000000000000000",
    INIT_01 => x"003837756a6d00000036796768626e0000357274667620000033346564786300",
    INIT_01 => x"003837756a6d00000036796768626e0000357274667620000033346564786300",
    INIT_02 => x"00005c005d0d000000003d5b00270000002d703b6c2f2e000039306f696b2c00",
    INIT_02 => x"00005c005d0d000000003d5b00270000002d703b6c2f2e000039306f696b2c00",
    INIT_03 => x"0000000000000000001b000000007f0000000000000000000008000000000000",
    INIT_03 => x"0000000000000000001b000000007f0000000000000000000008000000000000",
    INIT_04 => x"00325741535a00000031510000000000007e0900000000000000000000000000",
    INIT_04 => x"00325741535a00000031510000000000007e0900000000000000000000000000",
    INIT_05 => x"003837554a4d00000036594748424e0000355254465620000033344544584300",
    INIT_05 => x"003837554a4d00000036594748424e0000355254465620000033344544584300",
    INIT_06 => x"00005c005d0d000000003d5b00270000002d503b4c2f2e000039304f494b2c00",
    INIT_06 => x"00005c005d0d000000003d5b00270000002d503b4c2f2e000039304f494b2c00",
    INIT_07 => x"0000000000000000001b000000007f0000000000000000000008000000000000",
    INIT_07 => x"0000000000000000001b000000007f0000000000000000000008000000000000",
    INIT_08 => x"00405741535a00000021510000000000007e0900000000000000000000000000",
    INIT_08 => x"00405741535a00000021510000000000007e0900000000000000000000000000",
    INIT_09 => x"002a26554a4d0000005e594748424e0000255254465620000023244544584300",
    INIT_09 => x"002a26554a4d0000005e594748424e0000255254465620000023244544584300",
    INIT_0A => x"00007c007d0d000000002b7b00220000005f503a4c3f3e000028294f494b3c00",
    INIT_0A => x"00007c007d0d000000002b7b00220000005f503a4c3f3e000028294f494b3c00",
    INIT_0B => x"0000000000000000001b000000007f0000000000000000000008000000000000",
    INIT_0B => x"0000000000000000001b000000007f0000000000000000000008000000000000",
    INIT_0C => x"00407761737a0000002171000000000000600900000000000000000000000000",
    INIT_0C => x"00407761737a0000002171000000000000600900000000000000000000000000",
    INIT_0D => x"002a26756a6d0000005e796768626e0000257274667620000023246564786300",
    INIT_0D => x"002a26756a6d0000005e796768626e0000257274667620000023246564786300",
    INIT_0E => x"00007c007d0d000000002b7b00220000005f703a6c3f3e000028296f696b3c00",
    INIT_0E => x"00007c007d0d000000002b7b00220000005f703a6c3f3e000028296f696b3c00",
    INIT_0F => x"0000000000000000001b000000007f0000000000000000000008000000000000"
    INIT_0F => x"0000000000000000001b000000007f0000000000000000000008000000000000"
    )
    )
 
 
    port map (
    port map (
                clk => clk,
                clk => clk,
                en => cs,
                en => cs,
                we => we,
                we => we,
                rst => rst,
                rst => rst,
                addr => addr,
                addr => addr,
                di => wdata,
                di => data_in,
                do => rdata
                do => data_out
        );
        );
 
 
 
 
my_keymap_rom : process ( rw )
my_keymap_rom : process ( rw )
begin
begin
         we    <= not rw;
         we    <= not rw;
end process;
end process;
 
 
end architecture rtl;
end architecture rtl;
 
 
 
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.