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+
+-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the
+-- Free Software Foundation; either version 2 of the License, or (at
+-- your option) any later version.
+
+-- VESTs 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 General Public License
+-- for more details.
+
+-- You should have received a copy of the GNU General Public License
+-- along with VESTs; if not, write to the Free Software Foundation,
+-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+-- ---------------------------------------------------------------------
+--
+-- $Id: ch_05_fg_05_05.vhd,v 1.3 2001-11-03 23:19:37 paw Exp $
+-- $Revision: 1.3 $
+--
+-- ---------------------------------------------------------------------
+
+entity edge_triggered_Dff is
+ port ( D : in bit; clk : in bit; clr : in bit;
+ Q : out bit );
+end entity edge_triggered_Dff;
+
+architecture behavioral of edge_triggered_Dff is
+begin
+
+ state_change : process (clk, clr) is
+ begin
+ if clr = '1' then
+ Q <= '0' after 2 ns;
+ elsif clk'event and clk = '1' then
+ Q <= D after 2 ns;
+ end if;
+ end process state_change;
+
+end architecture behavioral;