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--|-----------------------------------------------------------------------------

--| UNSL - Modular Oscilloscope

--|

--| File: eppwbn_test_wb_side.vhd

--| Version: 0.10

--| Targeted device: Actel A3PE1500 

--|-----------------------------------------------------------------------------

--| Description:

--|   EPP - Wishbone bridge. 

--|       This file is only for test purposes

--|   It only stores data in regiters with wishbone interconect

--------------------------------------------------------------------------------

--| File history:

--|   0.10   | dic-2008 | First release

--------------------------------------------------------------------------------

--| Copyright ® 2008, Facundo Aguilera.

--|

--| This VHDL design file is an open design; you can redistribute it and/or

--| modify it and/or implement it after contacting the author.

library IEEE;

use IEEE.STD_LOGIC_1164.ALL;

use work.eppwbn_pkg.all;

--use IEEE.STD_LOGIC_ARITH.ALL;

entity eppwbn_test_wb_side is

  port(

    RST_I:  in std_logic;

    CLK_I:  in std_logic;

    DAT_I:  in std_logic_vector (7 downto 0);

    DAT_O:  out std_logic_vector (7 downto 0);

    ADR_I:  in std_logic_vector (7 downto 0);

    CYC_I:  in std_logic;

    STB_I:  in std_logic;

    ACK_O:  out std_logic ;

    WE_I:   in std_logic

        );

end eppwbn_test_wb_side;

architecture eppwbn_test_wb_arch0 of eppwbn_test_wb_side is

  signal auto_ack: std_logic;

begin

  MEM1: test_memory

  generic map(

    DEFAULT_OUT => '0';

    ADD_WIDTH => 8;

    WIDTH  => 8

  port map (

    cs => auto_ack,

    clk => CLK_I,

    reset => RST_I,

    add => ADR_I,

    Data_In => DAT_I,

    Data_Out => DAT_O,

    WR => WE_I

  );

  auto_ack <= CYC_I and STB_I;

  ACK_O <= auto_ack;

end architecture eppwbn_test_wb_arch0;