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-- $Id: rb_mon_sb.vhd 444 2011-12-25 10:04:58Z mueller $

--

-- Copyright 2007-2011 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>

--

-- This program is free software; you may redistribute and/or modify it under

-- the terms of the GNU General Public License as published by the Free

-- Software Foundation, either version 2, or at your option any later version.

--

-- This program is distributed in the hope that it will be useful, but

-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY

-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

-- for complete details.

--

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

-- Module Name:    rb_mon_sb - sim

-- Description:    simbus wrapper for rbus monitor (for tb's)

--

-- Dependencies:   simbus

--                 simlib/simclkcnt

--                 rb_mon

-- Test bench:     -

-- Tool versions:  xst 8.2, 9.1, 9.2, 13.1; ghdl 0.18-0.29

--

-- Revision History: 

-- Date         Rev Version  Comment

-- 2011-12-23   444   3.1    use simclkcnt instead of simbus global

-- 2010-12-22   346   3.0    renamed rritb_rbmon_sb -> rb_mon_sb

-- 2010-06-05   301   2.0.2  renamed _rpmon -> _rbmon

-- 2010-05-02   287   2.0.1  rename RP_STAT->RB_STAT,AP_LAM->RB_LAM

--                           drop RP_IINT signal from interfaces

--                           use sbcntl_sbf_cpmon def

-- 2008-08-24   162   2.0    with new rb_mreq/rb_sres interface

-- 2007-12-23   105   1.2    added AP_LAM display

-- 2007-11-24    98   1.1    added RP_IINT support

-- 2007-08-27    76   1.0    Initial version 

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

library ieee;

use ieee.std_logic_1164.all;

use work.slvtypes.all;

use work.simlib.all;

use work.simbus.all;

use work.rblib.all;

entity rb_mon_sb is                     -- simbus wrapper for rbus monitor

  generic (

    DBASE : positive :=  2;             -- base for writing data values

    ENAPIN : integer := sbcntl_sbf_rbmon); -- SB_CNTL signal to use for enable

  port (

    CLK  : in slbit;                    -- clock

    RB_MREQ : in rb_mreq_type;          -- rbus: request

    RB_SRES : in rb_sres_type;          -- rbus: response

    RB_LAM : in slv16 := (others=>'0'); -- rbus: look at me

    RB_STAT : in slv3                   -- rbus: status flags

  );

end rb_mon_sb;

architecture sim of rb_mon_sb is

  signal ENA : slbit := '0';

  signal CLK_CYCLE : integer := 0;

begin

  assert ENAPIN>=SB_CNTL'low and ENAPIN<=SB_CNTL'high

    report "assert(ENAPIN in SB_CNTL'range)" severity failure;

  CLKCNT : simclkcnt port map (CLK => CLK, CLK_CYCLE => CLK_CYCLE);

  ENA <= to_x01(SB_CNTL(ENAPIN));

  RBMON : rb_mon

    generic map (

      DBASE => DBASE)

    port map (

      CLK       => CLK,

      CLK_CYCLE => CLK_CYCLE,

      ENA       => ENA,

      RB_MREQ   => RB_MREQ,

      RB_SRES   => RB_SRES,

      RB_LAM    => RB_LAM,

      RB_STAT   => RB_STAT

    );

end sim;