reg16.vhd
来自「四位十进制数字频率计: 测量范围:1Hz~10kHz; 显示时间」· VHDL 代码 · 共 17 行
VHD
17 行
LIBRARY IEEE; --16位锁存器
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY reg16 IS
PORT(LK:IN STD_LOGIC;
DIN1,DIN2,DIN3,DIN4:IN STD_LOGIC_VECTOR(3 DOWNTO 0);
DOUT1,DOUT2,DOUT3,DOUT4:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));
END reg16;
ARCHITECTURE behav OF reg16 IS
BEGIN
PROCESS(LK,DIN1,DIN2,DIN3,DIN4)
BEGIN
IF LK'EVENT AND LK='1' THEN
DOUT1<=DIN1; DOUT2<=DIN2; DOUT3<=DIN3; DOUT4<=DIN4;
END IF;
END PROCESS;
END behav;
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