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

--| UNSL - Modular Oscilloscope

--|

--| File: eppwbn_test.vhd

--| Version: 0.10

--| Targeted device: Actel A3PE1500 

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

--| Description:

--|   EPP - Wishbone bridge. 

--|       This file is only for test purposes

--|   

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

--| File history:

--|   0.10   | jan-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_pgk.all;

entity eppwbn_16bit_test is

  port(

    -- al puerto EPP

    nStrobe:    in std_logic;                                                                                   -- Nomenclatura IEEE Std. 1284 

                                                -- HostClk/nWrite 

    Data:       inout std_logic_vector (7 downto 0);     -- AD8..1 (Data1..Data8)

    nAck:       out std_logic;                                                                                          --  PtrClk/PeriphClk/Intr

    busy:       out std_logic;                                                                                          --  PtrBusy/PeriphAck/nWait

    PError:     out std_logic;                                                                          --  AckData/nAckReverse

    Sel:        out std_logic;                                                                          --  XFlag (Select)

    nAutoFd:    in std_logic;                                                                           --  HostBusy/HostAck/nDStrb

    PeriphLogicH: out std_logic;                                                                --  (Periph Logic High)

    nInit:      in std_logic;                                                                           --  nReverseRequest

    nFault:     out std_logic;                                                                          --  nDataAvail/nPeriphRequest

    nSelectIn:  in std_logic;                                                                           --  1284 Active/nAStrb

    -- a los switches

    rst:        in std_logic;

    -- al clock

    clk:        in std_logic

        );

end eppwbn_16bit_test;

architecture eppwbn_test_arch0 of eppwbn_16bit_test is

  signal DAT_I_master:  std_logic_vector (15 downto 0);

  signal DAT_O_master:  std_logic_vector (15 downto 0);

  signal ADR_O_master:  std_logic_vector (7 downto 0);

  signal CYC_O_master:  std_logic;

  signal STB_O_master:  std_logic;

  signal ACK_I_master:  std_logic;

  signal WE_O_master:   std_logic;

  signal clk_pll:       std_logic;

begin

  SL_MEM1: eppwbn_16bit_test_wb_side

  generic map(

    ADD_WIDTH   => 8 ,

    WIDTH      => 16

    )

  port map(

      RST_I => rst,

      CLK_I => clk_pll,

      DAT_I => DAT_O_master,

      DAT_O => DAT_I_master,

      ADR_I => ADR_O_master,

      CYC_I => CYC_O_master,

      STB_I => STB_O_master,

      ACK_O => ACK_I_master,

      WE_I  => WE_O_master

    );

  MA_EPP: eppwbn_16bit port map(

      -- Externo

      nStrobe   => nStrobe,

      Data      => Data,

      nAck      => nAck,

      busy      => busy,

      PError    => PError,

      Sel       => Sel,

      nAutoFd   => nAutoFd,

      PeriphLogicH => PeriphLogicH,

      nInit     => nInit,

      nFault    => nFault,

      nSelectIn => nSelectIn,

      --  Interno

      RST_I => rst,

      CLK_I => clk_pll,

      DAT_I => DAT_I_master,

      DAT_O => DAT_O_master,

      ADR_O => ADR_O_master,

      CYC_O => CYC_O_master,

      STB_O => STB_O_master,

      ACK_I => ACK_I_master,

      WE_O  => WE_O_master

    );

  PLL_0: pll port map(

    GLB => clk_pll,

    CLK => clk

    );

end architecture eppwbn_test_arch0;