?? gh_latch.vhd
字號:
-----------------------------------------------------------------------------
-- Filename: gh_latch.vhd
--
-- Description:
-- transparent latch
--
-- Copyright (c) 2005 by George Huber
-- an OpenCores.org Project
-- free to use, but see documentation for conditions
--
-- Revision History:
-- Revision Date Author Comment
-- -------- ---------- --------- -----------
-- 1.0 01/28/06 H LeFevre Initial revision
--
-----------------------------------------------------------------------------
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY gh_latch IS
GENERIC (size: INTEGER := 8);
PORT(
LE : IN STD_LOGIC;
D : IN STD_LOGIC_VECTOR(size-1 DOWNTO 0);
Q : OUT STD_LOGIC_VECTOR(size-1 DOWNTO 0)
);
END entity;
ARCHITECTURE a OF gh_latch IS
signal iQ : STD_LOGIC_VECTOR(size-1 DOWNTO 0);
BEGIN
Q <= iQ;
iQ <= D when (LE = '1') else
iQ;
END a;
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