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-- $Id: sys_conf.vhd 683 2015-05-17 21:54:35Z mueller $

--

-- Copyright 2015- 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_w11a_b3 (for synthesis)

--

-- Dependencies:   -

-- Tool versions:  viv 2014.4; ghdl 0.31

-- Revision History: 

-- Date         Rev Version  Comment

-- 2015-03-14   658   1.1    add sys_conf_ibd_* definitions

-- 2015-02-08   644   1.0    Initial version (derived from _n4 version)

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

library ieee;

use ieee.std_logic_1164.all;

use work.slvtypes.all;

package sys_conf is

  -- configure clocks --------------------------------------------------------

  constant sys_conf_clksys_vcodivide   : positive :=   1;

  constant sys_conf_clksys_vcomultiply : positive :=   8;   -- vco  800 MHz

  constant sys_conf_clksys_outdivide   : positive :=  10;   -- sys   80 MHz

  constant sys_conf_clksys_gentype     : string   := "MMCM";

  -- single clock design, clkser = clksys

  constant sys_conf_clkser_vcodivide   : positive := sys_conf_clksys_vcodivide;

  constant sys_conf_clkser_vcomultiply : positive := sys_conf_clksys_vcomultiply;

  constant sys_conf_clkser_outdivide   : positive := sys_conf_clksys_outdivide;

  constant sys_conf_clkser_gentype     : string   := sys_conf_clksys_gentype;

  -- configure rlink and hio interfaces --------------------------------------

  constant sys_conf_ser2rri_defbaud : integer := 115200;   -- default 115k baud

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

  -- configure memory controller ---------------------------------------------

  constant sys_conf_memctl_mawidth : positive :=  4;

  constant sys_conf_memctl_nblock  : positive := 11;

  -- configure debug and monitoring units ------------------------------------

  constant sys_conf_rbmon_awidth : integer := 0; -- no rbmon to save BRAMs

  constant sys_conf_ibmon_awidth : integer := 0; -- no ibmon to save BRAMs

  -- configure w11 cpu core --------------------------------------------------

  -- sys_conf_mem_losize is highest 64 byte MMU block number

  -- the bram_memcnt uses 4*4kB memory blocks => 1 MEM block = 256 MMU blocks

  constant sys_conf_mem_losize     : integer := 256*sys_conf_memctl_nblock-1;

  constant sys_conf_cache_fmiss    : slbit   := '0';     -- cache enabled

  -- configure w11 system devices --------------------------------------------

  -- configure character and communication devices

  constant sys_conf_ibd_dl11_1 : boolean := true;  -- 2nd DL11

  constant sys_conf_ibd_pc11   : boolean := true;  -- PC11

  constant sys_conf_ibd_lp11   : boolean := true;  -- LP11

  -- configure mass storage devices

  constant sys_conf_ibd_rk11   : boolean := true;  -- RK11

  constant sys_conf_ibd_rl11   : boolean := true;  -- RL11

  constant sys_conf_ibd_rhrp   : boolean := true;  -- RHRP

  constant sys_conf_ibd_tm11   : boolean := true;  -- TM11

  -- configure other devices

  constant sys_conf_ibd_iist   : boolean := true;  -- IIST

  -- 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;

  constant sys_conf_clkser : integer :=

    ((100000000/sys_conf_clkser_vcodivide)*sys_conf_clkser_vcomultiply) /

    sys_conf_clkser_outdivide;

  constant sys_conf_clkser_mhz : integer := sys_conf_clkser/1000000;

  constant sys_conf_ser2rri_cdinit : integer :=

    (sys_conf_clkser/sys_conf_ser2rri_defbaud)-1;

end package sys_conf;