-- WARNING: Do NOT edit the input and output ports in this file in a text
-- editor if you plan to continue editing the block that represents it in
-- the Block Editor! File corruption is VERY likely to occur.

-- Copyright (C) 1991-2008 Altera Corporation
-- Your use of Altera Corporation's design tools, logic functions 
-- and other software and tools, and its AMPP partner logic 
-- functions, and any output files from any of the foregoing 
-- (including device programming or simulation files), and any 
-- associated documentation or information are expressly subject 
-- to the terms and conditions of the Altera Program License 
-- Subscription Agreement, Altera MegaCore Function License 
-- Agreement, or other applicable license agreement, including, 
-- without limitation, that your use is for the sole purpose of 
-- programming logic devices manufactured by Altera and sold by 
-- Altera or its authorized distributors.  Please refer to the 
-- applicable agreement for further details.


-- Generated by Quartus II Version 8.1 (Build Build 163 10/28/2008)
-- Created on Tue Sep 08 16:24:57 2009

LIBRARY ieee;
    USE ieee.std_logic_1164.all;


--  Entity Declaration

ENTITY dsp IS
	-- {{ALTERA_IO_BEGIN}} DO NOT REMOVE THIS LINE!
	PORT
	(
		CLK33M : IN STD_LOGIC;
		MAIN_CLK : IN STD_LOGIC;
		nFB_OE : IN STD_LOGIC;
		nFB_WR : IN STD_LOGIC;
		nFB_CS1 : IN STD_LOGIC;
		nFB_CS2 : IN STD_LOGIC;
		FB_SIZE0 : IN STD_LOGIC;
		FB_SIZE1 : IN STD_LOGIC;
		nFB_BURST : IN STD_LOGIC;
		FB_ADR : IN STD_LOGIC_VECTOR(31 downto 0);
		nRSTO : IN STD_LOGIC;
		nFB_CS3 : IN STD_LOGIC;
		nSRCS : INOUT STD_LOGIC;
		nSRBLE : OUT STD_LOGIC;
		nSRBHE : OUT STD_LOGIC;
		nSRWE : OUT STD_LOGIC;
		nSROE : OUT STD_LOGIC;
		DSP_INT : OUT STD_LOGIC;
		DSP_TA : OUT STD_LOGIC;
		FB_AD : INOUT STD_LOGIC_VECTOR(31 downto 0);
		IO : INOUT STD_LOGIC_VECTOR(17 downto 0);
		SRD : INOUT STD_LOGIC_VECTOR(15 downto 0)
	);
	-- {{ALTERA_IO_END}} DO NOT REMOVE THIS LINE!
	
END dsp;


--  Architecture Body

ARCHITECTURE rtl OF DSP IS

	
BEGIN
	nSRCS  <= '0' when nFB_CS2 = '0' and FB_ADR(27 downto 24) = x"4" else '1';	--nFB_CS3;
	nSRBHE <= '0' when FB_ADR(0 downto 0) = "0" else '1';
	nSRBLE <= '1' when FB_ADR(0 downto 0) = "0" and FB_SIZE1 = '0' and FB_SIZE0 = '1' else '0'; 
	nSRWE <= '0' when nFB_WR = '0' and nSRCS = '0' and MAIN_CLK = '0' else '1';
	nSROE <= '0' when nFB_OE = '0' and nSRCS = '0' else '1';
	DSP_INT <= '0';
	DSP_TA <= '0';
	IO(17 downto 0) <= FB_ADR(18 downto 1);
	SRD(15 downto 0) <= FB_AD(31 downto 16) when nFB_WR = '0' and nSRCS = '0' else "ZZZZZZZZZZZZZZZZ";
	FB_AD(31 downto 16) <= SRD(15 downto 0) when nFB_OE = '0' and nSRCS = '0' else "ZZZZZZZZZZZZZZZZ";
	
	
END rtl;