prog_rom.vhd

描述：LED示范、按钮及开关、视频输出、键入、含Xilinx PicoBlaze微处理器的存储器模块

--
-- Definition of a single port ROM for KCPSM program defined by prog_rom.psm
-- and assmbled using KCPSM assembler.
--
-- Standard IEEE libraries
--
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
--
-- The Unisim Library is used to define Xilinx primitives. It is also used during
-- simulation. The source can be viewed at %XILINX%\vhdl\src\unisims\unisim_VCOMP.vhd
--  
library unisim;
use unisim.vcomponents.all;
--
--
entity prog_rom is
    Port (      address : in std_logic_vector(7 downto 0);
            instruction : out std_logic_vector(15 downto 0);
                    clk : in std_logic);
    end prog_rom;
--
architecture low_level_definition of prog_rom is
--
-- Attributes to define ROM contents during implementation synthesis. 
-- The information is repeated in the generic map for functional simulation
--
attribute INIT_00 : string; 
attribute INIT_01 : string; 
attribute INIT_02 : string; 
attribute INIT_03 : string; 
attribute INIT_04 : string; 
attribute INIT_05 : string; 
attribute INIT_06 : string; 
attribute INIT_07 : string; 
attribute INIT_08 : string; 
attribute INIT_09 : string; 
attribute INIT_0A : string; 
attribute INIT_0B : string; 
attribute INIT_0C : string; 
attribute INIT_0D : string; 
attribute INIT_0E : string; 
attribute INIT_0F : string; 
--
-- Attributes to define ROM contents during implementation synthesis.
--
attribute INIT_00 of ram_256_x_16 : label is  "E734C7E4C714D70EC700E131E030CEF4DF06DF06DF06DF06CFE0AE2C01000000";
attribute INIT_01 of ram_256_x_16 : label is  "9509670FC7104101000095096728C7004001E73207DFE735C7E4C704D70EC710";
attribute INIT_02 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000008100";
attribute INIT_03 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_04 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_05 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_06 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_07 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_08 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_09 of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_0A of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_0B of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_0C of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_0D of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_0E of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
attribute INIT_0F of ram_256_x_16 : label is  "0000000000000000000000000000000000000000000000000000000000000000";
--
begin
--
  --Instantiate the Xilinx primitive for a block RAM
  ram_256_x_16: RAMB4_S16
  --translate_off
  --INIT values repeated to define contents for functional simulation
  generic map (INIT_00 => X"E734C7E4C714D70EC700E131E030CEF4DF06DF06DF06DF06CFE0AE2C01000000",
               INIT_01 => X"9509670FC7104101000095096728C7004001E73207DFE735C7E4C704D70EC710",
               INIT_02 => X"0000000000000000000000000000000000000000000000000000000000008100",
               INIT_03 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_04 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_05 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_06 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_07 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_08 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_09 => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_0A => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_0B => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_0C => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_0D => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_0E => X"0000000000000000000000000000000000000000000000000000000000000000",
               INIT_0F => X"0000000000000000000000000000000000000000000000000000000000000000",
  --translate_on
  port map(    DI => "0000000000000000",
               EN => '1',
               WE => '0',
              RST => '0',
              CLK => clk,
             ADDR => address,
               DO => instruction(15 downto 0)); 
--
end low_level_definition;
--
------------------------------------------------------------------------------------
--
-- END OF FILE prog_rom.vhd
--
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