con_ask.vhd

来自「通信基带信号发生器的设计」· VHDL 代码 · 共 27 行

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;

ENTITY CON_ASK IS 
PORT(CLK,QIN:IN  STD_LOGIC;
      SIN_IN:IN  STD_LOGIC_VECTOR(9 DOWNTO 0);
     ASK_OUT:OUT STD_LOGIC_VECTOR(9 DOWNTO 0)
	);
END ENTITY;

ARCHITECTURE BEHAV OF CON_ASK IS
BEGIN


PROCESS(CLK)
BEGIN
IF CLK'EVENT AND CLK='1' THEN
   IF QIN='1' THEN
      ASK_OUT<=SIN_IN; 
   ELSE
      ASK_OUT<="0000000000";  
   END IF;
END IF;
END PROCESS;

END;