library IEEE;
use IEEE.STD_LOGIC_1164.all;
entity demultiplexer_case is
port(
din : in STD_LOGIC;
sel : in STD_LOGIC_VECTOR(1 downto 0);
dout : out STD_LOGIC_VECTOR(3 downto 0)
);
end demultiplexer_case;
architecture demultiplexer_case_arc of demultiplexer_case is
begin
demux : process (din,sel) is
begin
case sel is
when "00" => dout <= din & "000";
when "01" => dout <= '0' & din & "00";
when "10" => dout <= "00" & din & '0';
when others => dout <= "000" & din;
end case;
end process demux;
end demultiplexer_case_arc;