?? dimeclk_module_mod.vhd
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--------------------------------------------------------------------------------
-- Copyright (c) 1995-2003 Xilinx, Inc.
-- All Right Reserved.
--------------------------------------------------------------------------------
-- ____ ____
-- / /\/ /
-- /___/ \ / Vendor: Xilinx
-- \ \ \/ Version : 6.3.02i
-- \ \ Application :
-- / / Filename : dimeclk_module.vhd
-- /___/ /\ Timestamp : 11/30/2004 13:37:17
-- \ \ / \
-- \___\/\___\
--
--Command:
--Design Name: dimeclk_module
--
-- Module dimeclk_module
-- Generated by Xilinx Architecture Wizard
-- Written for synthesis tool: XST
library ieee;
use ieee.std_logic_1164.ALL;
use ieee.numeric_std.ALL;
-- synopsys translate_off
library UNISIM;
use UNISIM.Vcomponents.ALL;
-- synopsys translate_on
entity dimeclk_module is
port ( CLKIN_IN : in std_logic;
RST_IN : in std_logic;
CLKIN_IBUFG_OUT : out std_logic;
CLK0_OUT : out std_logic;
LOCKED_OUT : out std_logic);
end dimeclk_module;
architecture BEHAVIORAL of dimeclk_module is
signal CLKFB_IN : std_logic;
signal CLKIN_IBUFG : std_logic;
signal CLK0_BUF : std_logic;
signal GND : std_logic;
component IBUFG
port ( I : in std_logic;
O : out std_logic);
end component;
component BUFG
port ( I : in std_logic;
O : out std_logic);
end component;
component DCM
generic( CLK_FEEDBACK : string := "1X";
CLKDV_DIVIDE : real := 2.000000;
CLKFX_DIVIDE : integer := 1;
CLKFX_MULTIPLY : integer := 4;
CLKIN_DIVIDE_BY_2 : boolean := FALSE;
CLKIN_PERIOD : real := 0.000000;
CLKOUT_PHASE_SHIFT : string := "NONE";
DESKEW_ADJUST : string := "SYSTEM_SYNCHRONOUS";
DFS_FREQUENCY_MODE : string := "LOW";
DLL_FREQUENCY_MODE : string := "LOW";
DUTY_CYCLE_CORRECTION : boolean := TRUE;
FACTORY_JF : bit_vector := x"C080";
PHASE_SHIFT : integer := 0;
STARTUP_WAIT : boolean := FALSE;
DSS_MODE : string := "NONE";
MAXPERCLKIN : time := 1000000 ps;
MAXPERPSCLK : time := 100000000 ps;
SIM_CLKIN_CYCLE_JITTER : time := 300 ps;
SIM_CLKIN_PERIOD_JITTER : time := 1000 ps);
port ( CLKIN : in std_logic;
CLKFB : in std_logic;
RST : in std_logic;
PSEN : in std_logic;
PSINCDEC : in std_logic;
PSCLK : in std_logic;
DSSEN : in std_logic;
CLK0 : out std_logic;
CLK90 : out std_logic;
CLK180 : out std_logic;
CLK270 : out std_logic;
CLKDV : out std_logic;
CLK2X : out std_logic;
CLK2X180 : out std_logic;
CLKFX : out std_logic;
CLKFX180 : out std_logic;
STATUS : out std_logic_vector (7 downto 0);
LOCKED : out std_logic;
PSDONE : out std_logic);
end component;
--This component is being used for V4 silicon to handle the addition of the
--new clocking constraints. This design was released by Xilinx. It handles the
--constraints for stopping the clock for more than 100ms and also for holding
--the design in reset for more than 10 sec.
component dcm_standby IS
PORT (
CLK0 : OUT std_logic;
CLK180 : OUT std_logic;
CLK270 : OUT std_logic;
CLK2X : OUT std_logic;
CLK2X180 : OUT std_logic;
CLK90 : OUT std_logic;
CLKDV : OUT std_logic;
CLKFX : OUT std_logic;
CLKFX180 : OUT std_logic;
DO : OUT std_logic_vector(15 DOWNTO 0);
LOCKED : OUT std_logic;
PSDONE : OUT std_logic;
CLKFB : IN std_logic;
CLKIN : IN std_logic;
PSCLK : IN std_logic;
PSEN : IN std_logic;
PSINCDEC : IN std_logic;
RST : IN std_logic);
END component;
begin
GND <= '0';
CLKIN_IBUFG_OUT <= CLKIN_IBUFG;
CLK0_OUT <= CLKFB_IN;
CLKIN_IBUFG_INST : IBUFG
port map (I=>CLKIN_IN,
O=>CLKIN_IBUFG);
--CLK0_BUFG_INST : BUFG
-- port map (I=>CLK0_BUF,
-- O=>CLKFB_IN);
CLKFB_IN <= CLK0_BUF;
--DCM_INST : DCM
--generic map( CLK_FEEDBACK => "1X",
-- CLKDV_DIVIDE => 2.000000,
-- CLKFX_DIVIDE => 1,
-- CLKFX_MULTIPLY => 4,
-- CLKIN_DIVIDE_BY_2 => FALSE,
-- CLKIN_PERIOD => 12.500000,
-- CLKOUT_PHASE_SHIFT => "NONE",
-- DESKEW_ADJUST => "SYSTEM_SYNCHRONOUS",
-- DFS_FREQUENCY_MODE => "LOW",
-- DLL_FREQUENCY_MODE => "LOW",
-- DUTY_CYCLE_CORRECTION => TRUE,
-- FACTORY_JF => x"C080",
-- PHASE_SHIFT => 0,
-- STARTUP_WAIT => FALSE)
-- port map (CLKFB=>CLKFB_IN,
-- CLKIN=>CLKIN_IBUFG,
-- DSSEN=>GND,
-- PSCLK=>GND,
-- PSEN=>GND,
-- PSINCDEC=>GND,
-- RST=>RST_IN,
-- CLKDV=>open,
-- CLKFX=>open,
-- CLKFX180=>open,
-- CLK0=>CLK0_BUF,
-- CLK2X=>open,
-- CLK2X180=>open,
-- CLK90=>open,
-- CLK180=>open,
-- CLK270=>open,
-- LOCKED=>LOCKED_OUT,
-- PSDONE=>open,
-- STATUS=>open);
--Using the updated DCM_STANDBY component to handle new DCM constraints.
DCM_INST : dcm_standby
port map (
CLKIN => CLKIN_IBUFG,
CLKFB => CLKFB_IN,
PSINCDEC =>GND ,
PSEN => GND,
PSCLK =>GND ,
RST => RST_IN,
CLK0 =>CLK0_BUF,
LOCKED => LOCKED_OUT
);
end BEHAVIORAL;
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