e_mux51.vhd
来自「书籍以及一些资料 还有些源程序 这是vhde相当珍贵的教材」· VHDL 代码 · 共 37 行
VHD
37 行
library ieee;
use ieee.std_logic_1164.all;
entity E_mux51 is
port (u : in std_logic ;
v : in std_logic ;
w : in std_logic ;
x : in std_logic ;
y : in std_logic ;
s0 : in std_logic ;
s1 : in std_logic ;
s2 : in std_logic ;
m : buffer std_logic
);
end E_mux51;
ARCHITECTURE Behavior OF E_mux51 IS
signal out10 : std_logic;
signal out11 : std_logic;
signal out20 : std_logic;
COMPONENT E_mux2 IS
port (x : in std_logic ;
y : in std_logic ;
s : in std_logic ;
m : buffer std_logic
);
END COMPONENT;
BEGIN
u1:E_mux2 PORT MAP(u,v,s0,out10);
u2:E_mux2 PORT MAP(w,x,s0,out11);
u3:E_mux2 PORT MAP(out10,out11,s1,out20);
u4:E_mux2 PORT MAP(out20,y,s2,m);
END Behavior;
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