hack/src/dff.vhdl

39 lines
1.1 KiB
VHDL

-- (C) Copyright Collin J. Doering 2015
--
-- This program 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 3 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
-- File: dff.vhdl
-- Author: Collin J. Doering <collin.doering@rekahsoft.ca>
-- Date: May 22, 2015
library IEEE;
use IEEE.std_logic_1164.all;
entity dff is
port (d, clk : in std_logic;
cout : out std_logic);
end dff;
architecture dff_arch of dff is
signal coutFst : std_logic := '0';
begin
cout <= coutFst;
dff: process(clk)
begin
if (rising_edge(clk)) then
coutFst <= d;
end if;
end process dff;
end dff_arch;