xskz.vhd

来自「课程设计《交通灯控制的设计》」· VHDL 代码 · 共 20 行

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY XSKZ IS
  PORT(EN45,EN25,EN05M,EN05B:IN STD_LOGIC;
AIN45M,AIN45B,AIN25M,AIN25B,AIN05:IN STD_LOGIC_VECTOR(7 DOWNTO 0);
DOUTM,DOUTB:OUT STD_LOGIC_VECTOR(7 DOWNTO 0));
END XSKZ;
ARCHITECTURE art OF XSKZ IS
 BEGIN 
 PROCESS(EN45,EN25,EN05M,EN05B,AIN45M,AIN45B,AIN25M,AIN25B,AIN05)IS
 BEGIN
 IF EN45='1'THEN DOUTM<=AIN45M(7 DOWNTO 0);DOUTB<=AIN45B(7 DOWNTO 0);
 ELSIF EN05M='1'THEN DOUTM<=AIN05(7 DOWNTO 0);DOUTB<=AIN05(7 DOWNTO 0);
 ELSIF EN25='1'THEN DOUTM<=AIN25M(7 DOWNTO 0);DOUTB<=AIN25B(7 DOWNTO 0);
 ELSIF EN05B='1'THEN DOUTM<=AIN05(7 DOWNTO 0);DOUTB<=AIN05(7 DOWNTO 0);
 END IF;
 END PROCESS;
END art;