Subversion Repositories modular_oscilloscope

----------------------------------------------------------------------------------------------------
--| UNSL - Modular Oscilloscope
--|
--| File: eppwbn_wbn_side.vhd
--| Version: 0.2
--| Tested in: Actel APA300
--| Tested in: Actel A3PE1500
--|   Board: RVI Prototype Board + LP Data Conversion Daughter Board
--|-------------------------------------------------------------------------------------------------
--| Description:
--|   EPP - Wishbone bridge. 
--|	  Package for instantiate EPP-WBN modules.
--|-------------------------------------------------------------------------------------------------
--| File history:
--|   0.01  | dic-2008 | First release
--|   0.10  | jan-2009 | Added testing memory
--|   0.20  | mar-2009 | Added extension module
----------------------------------------------------------------------------------------------------
--| 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.
----------------------------------------------------------------------------------------------------
 
 
-- Bloque completo
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
 
 
package eppwbn_pkg is	
	--------------------------------------------------------------------------------------------------
	-- Componentes  
 
  -- Bridge control
  component eppwbn_ctrl is
    port(
      nStrobe:      in  std_logic;                 
 
      Data:         in  std_logic_vector (7 downto 0);
      nAck:         out std_logic;                   
      PError:       out std_logic;                 
      Sel:          out std_logic;                    
      nAutoFd:      in  std_logic;                 
      PeriphLogicH: out std_logic;           
      nInit:        in  std_logic;                   
      nFault:       out std_logic;                 
      nSelectIn:    in  std_logic;               
 
      RST_I:        in  std_logic;  
      CLK_I:        in  std_logic;  
 
      rst_pp:       out std_logic; 
      epp_mode:     out std_logic_vector (1 downto 0) 
 	  );
	end component eppwbn_ctrl;
 
  -- Comunication with EPP interface
  component eppwbn_epp_side is
		port(
			epp_mode: in std_logic_vector (1 downto 0);
 
			ctr_nAck, ctr_PError, ctr_Sel, ctr_nFault:   in std_logic;       
 
			ctr_nAutoFd, ctr_nSelectIn, ctr_nStrobe:    out std_logic;      
 
			wb_Busy:       in   std_logic;             
			wb_nAutoFd:    out  std_logic;            
			wb_nSelectIn:  out  std_logic;            
			wb_nStrobe:    out  std_logic; 
 
			nAck, PError, Sel, nFault:   out std_logic;    
 
			Busy:         out   std_logic; 
			nAutoFd:      in    std_logic;
			nSelectIn:    in    std_logic;
			nStrobe:      in    std_logic 
		);
	end component eppwbn_epp_side;
 
	-- Comunication with WB interface
  component eppwbn_wbn_side is
		port(
			inStrobe:     in    std_logic; 
			iData:        inout std_logic_vector (7 downto 0);
			iBusy:        out   std_logic; 		
			inAutoFd:     in    std_logic; 	
			inSelectIn:   in    std_logic;
 
			RST_I, CLK_I: in    std_logic;  
			DAT_I:        in    std_logic_vector (7 downto 0);
			DAT_O:        out   std_logic_vector (7 downto 0);
			ADR_O:        out   std_logic_vector (7 downto 0);
			CYC_O, STB_O: out   std_logic;  
			ACK_I:        in    std_logic ;
			WE_O:         out   std_logic;
 
			rst_pp:       in std_logic 
		);		
	end component eppwbn_wbn_side;
 
	-- Testing memory
  component test_memory is
    generic ( --USE_RESET   : boolean   := false;  -- use system reset
 
              --USE_CS      : boolean   := false;  -- use chip select signal
 
              DEFAULT_OUT : std_logic;  -- Default output
              --OPTION      : integer   := 1;  -- 1: Registered read Address(suitable
                                          -- for Altera's FPGAs
                                          -- 0: non registered read address
              ADD_WIDTH   : integer;
              WIDTH       : integer);
 
    port (
      cs:        in  std_logic;           -- chip select
      clk:       in  std_logic;           -- write clock
      reset:     in  std_logic;           -- System Reset
      add:       in  std_logic_vector(add_width -1 downto 0);   --  Address
      Data_In:   in  std_logic_vector(WIDTH -1 downto 0);       -- input data
      Data_Out:  out std_logic_vector(WIDTH -1 downto 0);       -- Output Data
      WR:        in  std_logic);          -- Read Write Enable
  end component test_memory;
 
  -- Epp-wishbone bridge
  component eppwbn is
    port(
      -- TEMPORAL
      --epp_mode_monitor: out std_logic_vector (1 downto 0);
 
      -- Externo
      nStrobe:      in    std_logic;							        -- 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
 
      --  Interno
      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_O:  out std_logic_vector (7 downto 0);
      CYC_O:  out std_logic;  
      STB_O:  out std_logic;  
      ACK_I:  in  std_logic ;
      WE_O:   out std_logic 
      );
  end component eppwbn;
 
  -- Testing component
  component 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 component eppwbn_test_wb_side;
 
 
  -- Width extension
  component eppwbn_width_extension is 
  generic (
    TIME_OUT_VALUE: integer;
    TIME_OUT_WIDTH: integer
  );
  port(
    -- Slave signals
    DAT_I_sl: in  std_logic_vector (7 downto 0);
    DAT_O_sl: out std_logic_vector (7 downto 0);
    ADR_I_sl: in  std_logic_vector (7 downto 0);
    CYC_I_sl: in  std_logic;  
    STB_I_sl: in  std_logic;  
    ACK_O_sl: out std_logic ;
    WE_I_sl:  in  std_logic;
 
 
    --  Master signals
    DAT_I_ma: in  std_logic_vector (15 downto 0);
    DAT_O_ma: out std_logic_vector (15 downto 0);
    ADR_O_ma: out std_logic_vector (7 downto 0);
    CYC_O_ma: out std_logic;  
    STB_O_ma: out std_logic;  
    ACK_I_ma: in  std_logic ;
    WE_O_ma:  out std_logic;
 
    -- Common signals
    RST_I: in std_logic;  
    CLK_I: in std_logic
  );
  end component eppwbn_width_extension;
 
  component eppwbn_16bit is
  port(
    -- TEMPORAL
    --epp_mode_monitor: out std_logic_vector (1 downto 0);
 
  	-- Externo
    nStrobe:      in std_logic;                       --  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
 
 
  	--  Interno
  	RST_I: in std_logic;  
  	CLK_I: in std_logic;  
  	DAT_I: in std_logic_vector (15 downto 0);
  	DAT_O: out std_logic_vector (15 downto 0);
  	ADR_O: out std_logic_vector (7 downto 0);
  	CYC_O: out std_logic;  
  	STB_O: out std_logic;  
  	ACK_I: in std_logic ;
  	WE_O: out std_logic
  	);
  end component eppwbn_16bit;
 
  component 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;
 
    -- monitores
    data_monitor:     out std_logic_vector (7 downto 0);
    epp_mode_monitor: out std_logic_vector (1 downto 0)
 
	);
  end component eppwbn_16bit_test;
 
  component eppwbn_16bit_test_wb_side is
  generic ( 
    ADD_WIDTH   : integer ;
    WIDTH       : integer 
    );
  port(
    RST_I:  in std_logic;  
    CLK_I:  in std_logic;  
    DAT_I:  in std_logic_vector (WIDTH-1 downto 0);
    DAT_O:  out std_logic_vector (WIDTH-1 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 component eppwbn_16bit_test_wb_side;
 
  -- Clock (Actel specific)
  component A3PE_pll is 
      port(POWERDOWN, CLKA : in std_logic;  LOCK, GLA : out 
          std_logic) ;
  end component A3PE_pll;
 
end package eppwbn_pkg;