fenwei2.vhd

来自「在maxplus2环境下的vhdl设计交通灯」· VHDL 代码 · 共 39 行

LIBRARY IEEE; 
USE IEEE.STD_LOGIC_1164.ALL; 
ENTITY Fenwei2 IS
	PORT(Numin:IN integer RANGE 0 TO 64;
		 NumA,NumB:OUT Integer RANGE 0 to 9);
END ENTITY;
ARCHITECTURE behavior OF Fenwei2 IS 
  BEGIN
	process(Numin)
	  BEGIN
		IF Numin>=60 THEN
			NumA<=6;
			NumB<=Numin-60;
		ELSIF Numin>=50 THEN
			NumA<=5;
			NumB<=Numin-50;
		ELSIF Numin>=40 THEN
			NumA<=4;
			NumB<=Numin-40;
		ELSIF Numin>=30 THEN
			NumA<=3;
			NumB<=Numin-30;
		ELSIF Numin>=20 THEN
			NumA<=2;
			NumB<=Numin-20;
		ELSIF Numin>=10 THEN
			NumA<=1;
			NumB<=Numin-10;
		ELSE 
			NumA<=0;
			NumB<=Numin;
		END IF;
	END PROCESS;
END ARCHITECTURE behavior;