cpm.vhd

用TCD1501D驱动器产生CCD驱动的6个输出信号RS、CP、SP、SH以及Φ1、Φ2脉冲

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;


entity cpm is
    port( CLK:in std_logic;
          R:in std_logic;
          CP:out std_logic
         );
end entity cpm; 

architecture one of cpm is
signal D1,D2:std_logic;
BEGIN
PROCESS(CLK)
 BEGIN
  IF CLK'EVENT AND CLK='1' THEN
    D1<=D2;
     D2<=R;
  END IF;
 END PROCESS;
CP<=D1;
END ONE;