---------------------------------------------------------------------------------- -- Company: -- Engineer: -- -- Create Date: 17:02:27 04/18/2017 -- Design Name: -- Module Name: D_flip_flop - Behavioral -- Project Name: -- Target Devices: -- Tool versions: -- Description: -- -- Dependencies: -- -- Revision: -- Revision 0.01 - File Created -- Additional Comments: -- ---------------------------------------------------------------------------------- library IEEE; use IEEE.STD_LOGIC_1164.ALL; -- Uncomment the following library declaration if using -- arithmetic functions with Signed or Unsigned values --use IEEE.NUMERIC_STD.ALL; -- Uncomment the following library declaration if instantiating -- any Xilinx primitives in this code. --library UNISIM; --use UNISIM.VComponents.all; entity D_flip_flop is Port ( D : in STD_LOGIC; clk : in STD_LOGIC; clear : in STD_LOGIC; Q : out STD_LOGIC); end D_flip_flop; architecture Behavioral of D_flip_flop is begin process(clk,clear) begin if clear='0' then Q<='0'; elsif clk'event and clk='1' then Q<=D; end if; end process; end Behavioral;