Subversion Repositories xmatchpro

--This library is free software; you can redistribute it and/or

--modify it under the terms of the GNU Lesser General Public

--License as published by the Free Software Foundation; either

--version 2.1 of the License, or (at your option) any later version.

--This library is distributed in the hope that it will be useful,

--but WITHOUT ANY WARRANTY; without even the implied warranty of

--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

--Lesser General Public License for more details.

--You should have received a copy of the GNU Lesser General Public

--License along with this library; if not, write to the Free Software

--Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

-- e_mail : j.l.nunez-yanez@byacom.co.uk

---------------------------------------

--  ENTITY       = FF_FINISH_DECODING--

--  version      = 1.0               --

--  last update  = 21/08/00          --

--  author       = Jose Nunez        --

---------------------------------------

-- FUNCTION

-- out register

--  PIN LIST

--  FINISH_IN   = 1 bit input data

--  CLEAR = asynchronous clear of register

--  CLK   = clock

--  FINISH_OUT  = 1 bit output of flip-flops

library ieee,dzx;

use ieee.std_logic_1164.all;

use dzx.attributes.all;

entity FF_FINISH_DECODING is

port

(

      FINISH_IN : in bit;

        CLEAR : in bit ;

        RESET : in bit;

      CLK : in bit ;

        FINISH_OUT : out bit

);

end FF_FINISH_DECODING;

architecture LATCH of FF_FINISH_DECODING is

begin

FLIP_FLOPS : process (CLK,CLEAR)

begin

        -- asynchronous RESET signal forces all outputs LOW

        if (CLEAR = '0') then

                        FINISH_OUT <= '1';

            -- check for +ve clock edge

          elsif ((CLK'event) and (CLK = '1')) then

                        if (RESET = '0') then

                                                FINISH_OUT <= '1';

                        else

                                                        FINISH_OUT <= FINISH_IN;

                        end if;

          end if;

end process FLIP_FLOPS;

end LATCH;