key_inverter.vhd.bak

-- entity: key_inverter
-- author: Stephen Carter

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;		-- arithmetic operators
use ieee.std_logic_unsigned.all;	-- Treat vectors as unsigned

entity key_inverter is

		port(
				ek11	:	in std_logic_vector(3 downto 0);
				ek12	:	in std_logic_vector(3 downto 0);
				ek13	:	in std_logic_vector(3 downto 0);
				
				ek21	:	in std_logic_vector(3 downto 0);
				ek22	:	in std_logic_vector(3 downto 0);
				ek23	:	in std_logic_vector(3 downto 0);
				
				ek31	:	in std_logic_vector(3 downto 0);
				ek32	:	in std_logic_vector(3 downto 0);
				ek33	:	in std_logic_vector(3 downto 0);
				
				clk	: 	in std_logic;
				
				dk11	:	out std_logic_vector(3 downto 0);
				dk12	:	out std_logic_vector(3 downto 0);
				dk13	:	out std_logic_vector(3 downto 0);
				
				dk21	:	out std_logic_vector(3 downto 0);
				dk22	:	out std_logic_vector(3 downto 0);
				dk23	:	out std_logic_vector(3 downto 0);
				
				dk31	:	out std_logic_vector(3 downto 0);
				dk32	:	out std_logic_vector(3 downto 0);
				dk33	:	out std_logic_vector(3 downto 0)
				
		);
end key_inverter;