d 触发器 简单的d触发器

				---------------------------------------------------------------------------------------------------
				--
				-- Title       : dcf
				-- Design      : dchufa
				-- Author      : king
				-- Company     : king
				--
				---------------------------------------------------------------------------------------------------
				--
				-- File        : dcf.vhd
				-- Generated   : Tue Dec 11 18:50:13 2007
				-- From        : interface description file
				-- By          : Itf2Vhdl ver. 1.20
				--
				---------------------------------------------------------------------------------------------------
				--
				-- Description : 
				--
				---------------------------------------------------------------------------------------------------
				
				--{{ Section below this comment is automatically maintained
				--   and may be overwritten
				--{entity {dcf} architecture {dcf}}
				
				library IEEE;
				use IEEE.STD_LOGIC_1164.all;
				
				
				
				entity dcf is
					 port(
						 d : in BIT;
						 clk : in BIT;
						 q : out BIT
					     );
				end dcf;
				
				--}} End of automatically maintained section
				
				architecture dcf of dcf is
				begin
				  process(clk,d)
				  begin
					  if clk'event and clk='1' then
						  q					  end if;
					  end process;
					 -- enter your statements here --
				
				end dcf;