sram.vhd

以cyclone系列的EP2C5Q208为核心的实验板程序.包括流水灯,I2C存储器.SPI存储器,数码管,串口,LCD等

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--*************************************************************************************************
--  CreateDate  :  2007-10-05 
--  ModifData   :  2007-10-05 
--  Description :  SRAM : IS61LV25616 
--  Author      :  Explorer01 
--  Version     :  V1.0  
--*************************************************************************************************
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-- VHDL library Declarations 
LIBRARY IEEE;
USE IEEE.std_logic_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
USE IEEE.std_logic_unsigned.ALL;

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-- The Entity Declarations 
ENTITY SRAM IS
	PORT 
	(
		Address: 	OUT STD_LOGIC_VECTOR(17 DOWNTO 0); 
		Data: 		OUT STD_LOGIC_VECTOR(15 DOWNTO 0); 
		
		UB:		OUT STD_LOGIC; 
		LB:		OUT STD_LOGIC; 
		
		CE	:	OUT STD_LOGIC; 
		OE	:	OUT STD_LOGIC;
		WE	:	OUT STD_LOGIC
	);
END SRAM;

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-- The Architecture of Entity Declarations 
ARCHITECTURE Behavioral OF SRAM IS
	--Clock: 
BEGIN
	
	-------------------------------------------------
	-- 
	Address <= (OTHERS=>'Z');
	Data	<= (OTHERS=>'Z');
	
	UB <= 'Z';
	LB <= 'Z';
	
	CE  <= 'Z';
	OE  <= 'Z';
	WE  <= 'Z';
	
END Behavioral;