v_transfer.vhd

自己写的iic配置芯片的源程序

LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY v_transfer IS --由9011传给9034的信号，实现直入直出
	PORT
	(
		   HRQE1    : IN  STD_LOGIC_VECTOR (23 DOWNTO 6);
		   HRQE2    : IN  STD_LOGIC_VECTOR (3 DOWNTO 2);
		   HRODCK 	: IN  STD_LOGIC;
		   HRDE     : IN  STD_LOGIC;
		   MODE     : IN  STD_LOGIC;--0编码，1解码
		   HRHSYNC  : IN  STD_LOGIC;
		   HRVSYNC  : IN  STD_LOGIC;
		   HRSCDT   : IN  STD_LOGIC;
		   HRINT    : IN  STD_LOGIC;
		   CFGDONE  : IN  STD_LOGIC;
	       HRHPD    : IN STD_LOGIC;
		
--		   VDTI     : OUT STD_LOGIC_VECTOR (15 DOWNTO 0);
		   VICLK	: OUT STD_LOGIC;
		   HTD1     : OUT STD_LOGIC_VECTOR (23 DOWNTO 6);
		   HTD2     : OUT STD_LOGIC_VECTOR (3 DOWNTO 2);
		   HTIDCK	: OUT STD_LOGIC;
		   HTDE     : OUT STD_LOGIC;
		   HTHSYNC  : OUT STD_LOGIC;
	       HTVSYNC  : OUT STD_LOGIC

		);
END v_transfer;
architecture art of v_transfer is
 begin
       HTIDCK <= HRODCK;
  process(HRDE, HRODCK, CFGDONE)    --CFGDONE 标志9011 9034配置完成。
  begin
       if(HRODCK'event and HRODCK='1' and CFGDONE = '1')then
         HTD1(23 downto 6) <= HRQE1(23 downto 6);
         HTD2(3 downto 2) <= HRQE2(3 downto 2);
--		 HTIDCK	  <=  HRODCK;
		 HTDE     <=  HRDE;
		 HTHSYNC  <=  HRHSYNC;
	     HTVSYNC  <=  HRVSYNC;
	    --低有效复位信号
      end if;
  end process;
end;