·上一文章:影响小功率电源变压器的初级空载电流的主要因素
·下一文章:[VHDL实例]加法器描述
-- 8-bit Identity Comparator-- uses 1993 std VHDL library IEEE;use IEEE.Std_logIC_1164.all;entity HCT688 is port(Q, P : in std_logic_vector(7 downto 0); GBAR : in std_logic; PEQ : out std_logic);end HCT688; architecture VER1 of HCT688 isbegin PEQ <= '0' when ((To_X01(P) = To_X01(Q)) and (GBAR = '0')) else '1';end VER1;