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-- $Id: sys_conf.vhd 649 2015-02-21 21:10:16Z mueller $

--

-- Copyright 2012-2013 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.

--

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

-- Package Name:   sys_conf

-- Description:    Definitions for sys_tst_fx2loop_ic_n3 (for synthesis)

--

-- Dependencies:   -

-- Tool versions:  xst 13.3-14.7; ghdl 0.29-0.31

-- Revision History: 

-- Date         Rev Version  Comment

-- 2013-10-06   538   1.2    pll support, use clksys_vcodivide ect

-- 2012-04-24   510   1.1    use 3/2 clock-> 150 MHz sysclk

-- 2012-04-09   461   1.0    Initial version 

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

library ieee;

use ieee.std_logic_1164.all;

use work.slvtypes.all;

package sys_conf is

  constant sys_conf_clksys_vcodivide   : positive :=   2;

  constant sys_conf_clksys_vcomultiply : positive :=   3;   -- dcm  150 MHz

  constant sys_conf_clksys_outdivide   : positive :=   1;   -- sys  150 MHz

  constant sys_conf_clksys_gentype     : string   := "DCM";

  constant sys_conf_fx2_type : string := "ic2";

  -- dummy values defs for generic parameters of as controller

  constant sys_conf_fx2_rdpwldelay : positive := 1;

  constant sys_conf_fx2_rdpwhdelay : positive := 1;

  constant sys_conf_fx2_wrpwldelay : positive := 1;

  constant sys_conf_fx2_wrpwhdelay : positive := 1;

  constant sys_conf_fx2_flagdelay  : positive := 1;

  -- pktend timer setting

  --   petowidth=10 -> 2^10 30 MHz clocks -> ~33 usec (normal operation)

  constant sys_conf_fx2_petowidth  : positive := 10;

  constant sys_conf_fx2_ccwidth  : positive := 5;

  constant sys_conf_hio_debounce : boolean := true;    -- instantiate debouncers

  -- derived constants

  constant sys_conf_clksys : integer :=

    ((100000000/sys_conf_clksys_vcodivide)*sys_conf_clksys_vcomultiply) /

    sys_conf_clksys_outdivide;

  constant sys_conf_clksys_mhz : integer := sys_conf_clksys/1000000;

end package sys_conf;