dos2unix *.vhd

[raggedstone] / dhwk / source / FLAG_BUS.vhd

-- J.STELZNER
-- INFORMATIK-3 LABOR
-- 23.08.2006
-- File: FLAG_BUS.VHD

library IEEE;
use IEEE.std_logic_1164.all;

entity FLAG_BUS is
	port
	(
	PCI_CLOCK	:in		std_logic;
	KONS_1		:in		std_logic;
	FLAG_IN_0	:in		std_logic;
	R_EFn			:in		std_logic;
	R_HFn			:in		std_logic;
	R_FFn			:in		std_logic;
	FLAG_IN_4	:in		std_logic;
	S_EFn			:in		std_logic;
	S_HFn			:in		std_logic;
	S_FFn			:in		std_logic;
	HOLD			:in		std_logic;
	SYNC_FLAG	:out	std_logic_vector (7 downto 0)
	);	
end entity FLAG_BUS;

architecture FLAG_BUS_DESIGN of FLAG_BUS is


signal	FF1_S_EFn	:std_logic;	
signal	FF1_S_HFn	:std_logic;
signal	FF1_S_FFn	:std_logic;
signal	FF1_R_EFn	:std_logic;
signal	FF1_R_HFn	:std_logic;
signal	FF1_R_FFn	:std_logic;

signal	FF2_S_EFn	:std_logic;	
signal	FF2_S_HFn	:std_logic;
signal	FF2_S_FFn	:std_logic;
signal	FF2_R_EFn	:std_logic;
signal	FF2_R_HFn	:std_logic;
signal	FF2_R_FFn	:std_logic;

begin


	process	(PCI_CLOCK) 
	begin 
		if	(PCI_CLOCK'event	and	PCI_CLOCK	=	'1')	then 

		FF1_S_EFn	<=	not S_EFn;
		FF1_S_HFn	<=	not S_HFn;
		FF1_S_FFn	<=	not S_FFn;
		FF1_R_EFn	<=	not R_EFn;
		FF1_R_HFn	<=	not R_HFn;
		FF1_R_FFn	<=	not R_FFn;

		end if;
	end process; 	


	process	(PCI_CLOCK) 
	begin 
		if	(PCI_CLOCK'event	and	PCI_CLOCK	=	'1')	then  

			if			HOLD	=	'0'	then

					FF2_S_EFn	<=	FF1_S_EFn;	
					FF2_S_HFn	<=	FF1_S_HFn;
					FF2_S_FFn	<=	FF1_S_FFn;
					FF2_R_EFn	<=	FF1_R_EFn;
					FF2_R_HFn	<=	FF1_R_HFn;
					FF2_R_FFn	<=	FF1_R_FFn;

				elsif	HOLD	=	'1'	then

					FF2_S_EFn	<=	FF2_S_EFn;	
					FF2_S_HFn	<=	FF2_S_HFn;
					FF2_S_FFn	<=	FF2_S_FFn;
					FF2_R_EFn	<=	FF2_R_EFn;
					FF2_R_HFn	<=	FF2_R_HFn;
					FF2_R_FFn	<=	FF2_R_FFn;

			end if;
		end if;
	end process; 	

	SYNC_FLAG(0)	<=	FLAG_IN_0;		
	SYNC_FLAG(1)	<=	FF2_R_EFn;	
	SYNC_FLAG(2)	<=	FF2_R_HFn;
	SYNC_FLAG(3)	<=	FF2_R_FFn;
	SYNC_FLAG(4)	<=	FLAG_IN_4;		
	SYNC_FLAG(5)	<=	FF2_S_EFn;	
	SYNC_FLAG(6)	<=	FF2_S_HFn;
	SYNC_FLAG(7)	<=	FF2_S_FFn;

end architecture FLAG_BUS_DESIGN;