decorm_s.vhd

来自「VHDL子程序集,包括各种例程资料以及源码.」· VHDL 代码 · 共 26 行

--************************************
--*  Decoder With Multiple Address   *
--*       Filename : DECORM_S        *
--************************************
 
library IEEE;
use IEEE.std_logic_1164.all;

entity DECORM_S is
    port (
          S: in STD_LOGIC_VECTOR (2 downto 0);
          Y: out STD_LOGIC_VECTOR (0 to 4)
         );
end DECORM_S;

architecture DECORM_S_arch of DECORM_S is

begin
    with S select
       Y <= "01111" when "000" | "001",
            "10111" when "010" | "011",
            "11011" when "100",
            "11101" when "101",
            "11110" when others;       
end DECORM_S_arch;