Realization of D-FLIP FLOP

library ieee;

use ieee.std_logic_1164.all;

entity my_dffbehavior is

port (d,clk,clr : in std_logic; q,qbar : inout std_logic);

end my_dffbehavior;

architecture my_dffbehaviorarch of my_dffbehavior is

begin

process (d,clk,clr)

begin

if (clr = '1') then

if (clk = '1') AND (clk'EVENT)  then

q <= d;  qbar <= not (d);

end if;

else

q <= '0';  qbar <= '1';

end if;

end process;

end my_dffbehaviorarch;

TRUTH TABLE:

INPUT	OUTPUT
D	QN+1
0	0
1	1

LOGIC DIAGRAM:

OUTPUT WAVEFORM