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[/] [System09/] [trunk/] [rtl/] [Spartan3/] [keymap_rom2k_b16.vhd] - Blame information for rev 159

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1 99 davidgb 
--===========================================================================--
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--                                                                           --
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--               Synthesizable PS/2 Keyboard Key map ROM for Spartan3        --
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--                                                                           --
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--===========================================================================--
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--
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--  File name      : keymap_rom2k_b16.vhd
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--
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--  Entity name    : keymap_rom
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--
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--  Purpose        : Key code look up table for PS/2 Keyboard
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--                   Converts 7 bit key code to ASCII
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--                   Address bit 8      = Shift
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--                   Address bit 7      = CAPS Lock
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--                   Address bits 6 - 0 = Key code
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--                   Data bits 6 - 0    = ASCII code
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--                   Intended for Spartan 3/3E
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--
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--  Dependencies   : ieee.std_logic_1164
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--                   ieee.std_logic_arith
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--                   unisim.vcomponents
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--
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--  Uses           : RAMB16_S9
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--
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--  Author         : John E. Kent
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--
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--  Email          : dilbert57@opencores.org
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--
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--  Web            : http://opencores.org/project,system09
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--
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--  Copyright (C) 2004 - 2010 John Kent
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--
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--  This program is free software: you can redistribute it and/or modify
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--  it under the terms of the GNU General Public License as published by
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--  the Free Software Foundation, either version 3 of the License, or
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--  (at your option) any later version.
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--
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--  This program is distributed in the hope that it will be useful,
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--  but WITHOUT ANY WARRANTY; without even the implied warranty of
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--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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--  GNU General Public License for more details.
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--
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--  You should have received a copy of the GNU General Public License
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--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
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--
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--===========================================================================--
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--                                                                           --
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--                              Revision  History                            --
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--                                                                           --
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--===========================================================================--
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--
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-- Version Date        Author     Changes
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--
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-- 0.1     ????-??-??  John Kent  Initial version
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-- 0.2     2010-06-17  John Kent  Revised Header, renamed data pins
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--
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58 19 dilbert57 
library IEEE;
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use IEEE.STD_LOGIC_1164.ALL;
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use IEEE.STD_LOGIC_ARITH.ALL;
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library unisim;
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        use unisim.vcomponents.all;
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64 99 davidgb 
entity keymap_rom is
65 19 dilbert57 
    Port (
66 99 davidgb 
       clk      : in  std_logic;
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       rst      : in  std_logic;
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       cs       : in  std_logic;
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       rw       : in  std_logic;
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       addr     : in  std_logic_vector (8 downto 0);
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       data_in  : in  std_logic_vector (7 downto 0);
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       data_out : out std_logic_vector (7 downto 0)
73 19 dilbert57 
    );
74 99 davidgb 
end keymap_rom;
75 19 dilbert57 
 
76 99 davidgb 
architecture rtl of keymap_rom is
77 19 dilbert57 
 
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signal we : std_logic;
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signal dp : std_logic;
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signal ad : std_logic_vector(10 downto 0);
82 19 dilbert57 
 
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begin
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  ROM : RAMB16_S9
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    generic map (
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    INIT_00 => x"00327761737a0000003171000000000000600900000000000000000000000000",
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    INIT_01 => x"003837756a6d00000036796768626e0000357274667620000033346564786300",
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    INIT_02 => x"00005c005d0d000000003d5b00270000002d703b6c2f2e000039306f696b2c00",
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    INIT_03 => x"0000000000000000001b000000007f0000000000000000000008000000000000",
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    INIT_04 => x"00121701131a0000001111000000000000000900000000000000000000000000",
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    INIT_05 => x"001817150a0d00000016190708020e0000151214061600000013140504180300",
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    INIT_06 => x"00001c001d0d000000001d1b00070000000d101b0c0f0e000019100f090b0c00",
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    INIT_07 => x"0000000000000000001b000000001f0000000000000000000008000000000000",
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    INIT_08 => x"00405741535a00000021510000000000007e0900000000000000000000000000",
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    INIT_09 => x"002a26554a4d0000005e594748424e0000255254465620000023244544584300",
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    INIT_0A => x"00007c007d0d000000002b7b00220000005f503a4c3f3e000028294f494b3c00",
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    INIT_0B => x"0000000000000000001b000000007f0000000000000000000008000000000000",
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    INIT_0C => x"00001701131a00000001110000000000001e0900000000000000000000000000",
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    INIT_0D => x"000a06150a0d0000001e190708020e0000051214061600000003040504180300",
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    INIT_0E => x"00001c001d0d000000001d1b00020000001f101a0c1f1e000008090f090b1c00",
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    INIT_0F => x"0000000000000000001b000000001f0000000000000000000008000000000000",
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    INIT_10 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_11 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_12 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_13 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_14 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_15 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_16 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_17 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_18 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_19 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_1A => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_1B => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_1C => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_1D => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_1E => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_1F => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_20 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_21 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_22 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_23 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_24 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_25 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_26 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_27 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_28 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_29 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_2A => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_2B => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_2C => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_2D => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_2E => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_2F => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_30 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_31 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_32 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_33 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_34 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_35 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_36 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_37 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_38 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_39 => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_3A => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_3B => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_3C => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_3D => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_3E => x"0000000000000000000000000000000000000000000000000000000000000000",
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    INIT_3F => x"0000000000000000000000000000000000000000000000000000000000000000"
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    )
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    port map (
154 99 davidgb 
          do     => data_out,
155 19 dilbert57 
          dop(0) => dp,
156 99 davidgb 
          addr   => ad,
157 19 dilbert57 
          clk    => clk,
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          di     => data_in,
159 19 dilbert57 
          dip(0) => dp,
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          en     => cs,
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          ssr    => rst,
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          we     => we
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        );
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165 99 davidgb 
my_keymap_rom_b16 : process ( rw, addr )
166 19 dilbert57 
begin
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         we    <= not rw;
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    ad(8 downto 0) = addr;
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    ad(10 downto 9) = "00";
170 19 dilbert57 
end process;
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end architecture rtl;
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