i2c_command.vhd

infra pen controller, cmos sensor control and sdram control

--============================================================================
-- Project 		: Video Capture Control
-- Programmer	: Byungchan Son
-- Function		: SAA7121H Control - CVBS 厚叼坷 浚内歹 力绢
-- Language		: VHDL
--============================================================================
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
use ieee.numeric_std.all;
--============================================================================
-- 涝免仿 器飘 沥狼
--============================================================================
entity i2c_command is
	port(
		-- 矫胶袍 脚龋
		reset : in std_logic;
		clock : in std_logic;
		-- I2C control
		i2c_data_in : out std_logic_vector(7 downto 0);
		i2c_data_out : in std_logic_vector(7 downto 0);
		i2c_start_req : out std_logic;
		i2c_start_ack : in std_logic;
		i2c_write_req : out std_logic;
		i2c_write_ack : in std_logic;
		i2c_read_req : out std_logic;
		i2c_read_ack : in std_logic;
		i2c_stop_req : out std_logic;
		i2c_stop_ack : in std_logic;
		-- 厚叼坷 屈侥
		video_type_out : out std_logic
		);
end i2c_command;
--============================================================================
-- 备炼 沥狼