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-- $Id: ibdr_maxisys.vhd 679 2015-05-13 17:38:46Z mueller $

--

-- Copyright 2009-2015 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.

--

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

-- Module Name:    ibdr_maxisys - syn

-- Description:    ibus(rem) devices for full system

--

-- Dependencies:   ibd_iist

--                 ibd_kw11l

--                 ibdr_rhrp

--                 ibdr_rl11

--                 ibdr_rk11

--                 ibdr_dl11

--                 ibdr_pc11

--                 ibdr_lp11

--                 ibdr_sdreg

--                 ib_sres_or_4

--                 ib_sres_or_3

--                 ib_intmap

-- Test bench:     -

-- Target Devices: generic

-- Tool versions:  ise 8.2-14.7; viv 2014.4; ghdl 0.18-0.31

--

-- Synthesized (xst):

-- Date         Rev  ise         Target      flop lutl lutm slic t peri

-- 2015-04-06   664 14.7  131013 xc6slx16-2   559 1068   29  410 s  9.1 +RHRP

-- 2015-01-04   630 14.7  131013 xc6slx16-2   388  761   20  265 s  8.0 +RL11

-- 2014-06-08   560 14.7  131013 xc6slx16-2   311  615    8  216 s  7.1

-- 2010-10-17   333 12.1    M53d xc3s1000-4   312 1058   16  617 s 10.3

-- 2010-10-17   314 12.1    M53d xc3s1000-4   300 1094   16  626 s 10.4

--

-- Revision History: 

-- Date         Rev Version  Comment

-- 2015-05-10   678   1.3    start/stop/suspend overhaul

-- 2015-04-06   664   1.2.3  rename RPRM to RHRP

-- 2015-03-14   658   1.2.2  add RPRM; rearrange intmap (+rhrp,tm11,-kw11-l)

--                           use sys_conf, make most devices configurable

-- 2015-01-04   630   1.2.1  RL11 back in

-- 2014-06-27   565   1.2.1  temporarily hide RL11

-- 2014-06-08   561   1.2    add RL11

-- 2011-11-18   427   1.1.2  now numeric_std clean

-- 2010-10-23   335   1.1.1  rename RRI_LAM->RB_LAM

-- 2010-06-11   303   1.1    use IB_MREQ.racc instead of RRI_REQ

-- 2009-07-12   233   1.0.4  reorder ports; add RESET, CE_USEC to _dl11

-- 2009-06-20   227   1.0.3  rename generate labels

-- 2009-06-07   224   1.0.2  add iist_mreq and iist_sres interfaces

-- 2009-06-01   221   1.0.1  add CE_USEC; add RESET to kw11l; add _pc11, _iist

-- 2009-05-24   219   1.0    Initial version

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

-- 

-- 

-- full system setup

--

-- ibbase  vec  pri  slot attn  sror device name

--

-- 172540  104   ?7    17    -  1/1  KW11-P

-- 177500  260    6 15 16    -  1/2  IIST

-- 177546  100    6 14 15    -  1/3  KW11-L

-- 174510  120    5    14    9  1/4  DEUNA

-- 176700  254    5 13 13    6  2/1  RHRP

-- 174400  160    5 12 12    5  2/2  RL11

-- 177400  220    5 11 11    4  2/3  RK11

-- 172520  224    5 10 10    7  2/4  TM11

-- 160100  310?   5  9  9    3  3/1  DZ11-RX

--         314?   5  8  8    ^       DZ11-TX

-- 177560  060    4  7  7    1  3/2  DL11-RX  1st

--         064    4  6  6    ^       DL11-TX  1st

-- 176500  300    4  5  5    2  3/3  DL11-RX  2nd

--         304    4  4  4    ^       DL11-TX  2nd

-- 177550  070    4  3  3   10  4/1  PC11/PTR

--         074    4  2  2    ^       PC11/PTP

-- 177514  200    4  1  1    8  4/2  LP11

-- 177570    -    -     -    -  4/3  sdreg

-- 

library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

use work.slvtypes.all;

use work.iblib.all;

use work.ibdlib.all;

use work.sys_conf.all;

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

entity ibdr_maxisys is                  -- ibus(rem) full system

  port (

    CLK : in slbit;                     -- clock

    CE_USEC : in slbit;                 -- usec pulse

    CE_MSEC : in slbit;                 -- msec pulse

    RESET : in slbit;                   -- reset

    BRESET : in slbit;                  -- ibus reset

    ITIMER : in slbit;                  -- instruction timer

    CPUSUSP : in slbit;                 -- cpu suspended

    RB_LAM : out slv16_1;               -- remote attention vector

    IB_MREQ : in ib_mreq_type;          -- ibus request

    IB_SRES : out ib_sres_type;         -- ibus response

    EI_ACKM : in slbit;                 -- interrupt acknowledge (from master)

    EI_PRI : out slv3;                  -- interrupt priority (to cpu)

    EI_VECT : out slv9_2;               -- interrupt vector   (to cpu)

    DISPREG : out slv16                 -- display register

  );

end ibdr_maxisys;

architecture syn of ibdr_maxisys is

  constant conf_intmap : intmap_array_type :=

    ((8#260#,6),                        -- line 15  IIST

     (8#100#,6),                        -- line 14  KW11-L

     (8#254#,5),                        -- line 13  RHRP

     (8#160#,5),                        -- line 12  RL11

     (8#220#,5),                        -- line 11  RK11

     (8#224#,5),                        -- line 10  TM11

     (8#310#,5),                        -- line  9  DZ11-RX

     (8#314#,5),                        -- line  8  DZ11-TX

     (8#060#,4),                        -- line  7  DL11-RX 1st

     (8#064#,4),                        -- line  6  DL11-TX 1st

     (8#300#,4),                        -- line  5  DL11-RX 2nd

     (8#304#,4),                        -- line  4  DL11-TX 2nd

     (8#070#,4),                        -- line  3  PC11-PTR

     (8#074#,4),                        -- line  2  PC11-PTP

     (8#200#,4),                        -- line  1  LP11

     intmap_init                        -- line  0  (must be unused!)

     );

  signal RB_LAM_DENUA  : slbit := '0';

  signal RB_LAM_RHRP   : slbit := '0';

  signal RB_LAM_RL11   : slbit := '0';

  signal RB_LAM_RK11   : slbit := '0';

  signal RB_LAM_TM11   : slbit := '0';

  signal RB_LAM_DZ11   : slbit := '0';

  signal RB_LAM_DL11_0 : slbit := '0';

  signal RB_LAM_DL11_1 : slbit := '0';

  signal RB_LAM_PC11   : slbit := '0';

  signal RB_LAM_LP11   : slbit := '0';

  signal IB_SRES_IIST   : ib_sres_type := ib_sres_init;

  signal IB_SRES_KW11P  : ib_sres_type := ib_sres_init;

  signal IB_SRES_KW11L  : ib_sres_type := ib_sres_init;

  signal IB_SRES_DEUNA  : ib_sres_type := ib_sres_init;

  signal IB_SRES_RHRP   : ib_sres_type := ib_sres_init;

  signal IB_SRES_RL11   : ib_sres_type := ib_sres_init;

  signal IB_SRES_RK11   : ib_sres_type := ib_sres_init;

  signal IB_SRES_TM11   : ib_sres_type := ib_sres_init;

  signal IB_SRES_DZ11   : ib_sres_type := ib_sres_init;

  signal IB_SRES_DL11_0 : ib_sres_type := ib_sres_init;

  signal IB_SRES_DL11_1 : ib_sres_type := ib_sres_init;

  signal IB_SRES_PC11   : ib_sres_type := ib_sres_init;

  signal IB_SRES_LP11   : ib_sres_type := ib_sres_init;

  signal IB_SRES_SDREG  : ib_sres_type := ib_sres_init;

  signal IB_SRES_1      : ib_sres_type := ib_sres_init;

  signal IB_SRES_2      : ib_sres_type := ib_sres_init;

  signal IB_SRES_3      : ib_sres_type := ib_sres_init;

  signal IB_SRES_4      : ib_sres_type := ib_sres_init;

  signal EI_REQ  : slv16_1 := (others=>'0');

  signal EI_ACK  : slv16_1 := (others=>'0');

  signal EI_REQ_IIST     : slbit := '0';

  signal EI_REQ_KW11P    : slbit := '0';

  signal EI_REQ_KW11L    : slbit := '0';

  signal EI_REQ_DEUNA    : slbit := '0';

  signal EI_REQ_RHRP     : slbit := '0';

  signal EI_REQ_RL11     : slbit := '0';

  signal EI_REQ_RK11     : slbit := '0';

  signal EI_REQ_TM11     : slbit := '0';

  signal EI_REQ_DZ11RX   : slbit := '0';

  signal EI_REQ_DZ11TX   : slbit := '0';

  signal EI_REQ_DL11RX_0 : slbit := '0';

  signal EI_REQ_DL11TX_0 : slbit := '0';

  signal EI_REQ_DL11RX_1 : slbit := '0';

  signal EI_REQ_DL11TX_1 : slbit := '0';

  signal EI_REQ_PC11PTR  : slbit := '0';

  signal EI_REQ_PC11PTP  : slbit := '0';

  signal EI_REQ_LP11     : slbit := '0';

  signal EI_ACK_IIST     : slbit := '0';

  signal EI_ACK_KW11P    : slbit := '0';

  signal EI_ACK_KW11L    : slbit := '0';

  signal EI_ACK_DEUNA    : slbit := '0';

  signal EI_ACK_RHRP     : slbit := '0';

  signal EI_ACK_RL11     : slbit := '0';

  signal EI_ACK_RK11     : slbit := '0';

  signal EI_ACK_TM11     : slbit := '0';

  signal EI_ACK_DZ11RX   : slbit := '0';

  signal EI_ACK_DZ11TX   : slbit := '0';

  signal EI_ACK_DL11RX_0 : slbit := '0';

  signal EI_ACK_DL11TX_0 : slbit := '0';

  signal EI_ACK_DL11RX_1 : slbit := '0';

  signal EI_ACK_DL11TX_1 : slbit := '0';

  signal EI_ACK_PC11PTR  : slbit := '0';

  signal EI_ACK_PC11PTP  : slbit := '0';

  signal EI_ACK_LP11     : slbit := '0';

  signal IIST_BUS        : iist_bus_type := iist_bus_init;

  signal IIST_OUT_0      : iist_line_type := iist_line_init;

  signal IIST_MREQ       : iist_mreq_type := iist_mreq_init;

  signal IIST_SRES       : iist_sres_type := iist_sres_init;

begin

  IIST: if sys_conf_ibd_iist generate

  begin

    I0 : ibd_iist

      port map (

        CLK       => CLK,

        CE_USEC   => CE_USEC,

        RESET     => RESET,

        BRESET    => BRESET,

        IB_MREQ   => IB_MREQ,

        IB_SRES   => IB_SRES_IIST,

        EI_REQ    => EI_REQ_IIST,

        EI_ACK    => EI_ACK_IIST,

        IIST_BUS  => IIST_BUS,

        IIST_OUT  => IIST_OUT_0,

        IIST_MREQ => IIST_MREQ,

        IIST_SRES => IIST_SRES

      );

    IIST_BUS(0) <= IIST_OUT_0;

    IIST_BUS(1) <= iist_line_init;

    IIST_BUS(2) <= iist_line_init;

    IIST_BUS(3) <= iist_line_init;

  end generate IIST;

  KW11L : ibd_kw11l

    port map (

      CLK     => CLK,

      CE_MSEC => CE_MSEC,

      RESET   => RESET,

      BRESET  => BRESET,

      CPUSUSP => CPUSUSP,

      IB_MREQ => IB_MREQ,

      IB_SRES => IB_SRES_KW11L,

      EI_REQ  => EI_REQ_KW11L,

      EI_ACK  => EI_ACK_KW11L

    );

  RHRP: if sys_conf_ibd_rhrp generate

  begin

    I0 : ibdr_rhrp

      port map (

        CLK     => CLK,

        CE_USEC => CE_USEC,

        BRESET  => BRESET,

        ITIMER  => ITIMER,

        RB_LAM  => RB_LAM_RHRP,

        IB_MREQ => IB_MREQ,

        IB_SRES => IB_SRES_RHRP,

        EI_REQ  => EI_REQ_RHRP,

        EI_ACK  => EI_ACK_RHRP

      );

  end generate RHRP;

  RL11: if sys_conf_ibd_rl11 generate

  begin

    I0 : ibdr_rl11

      port map (

        CLK     => CLK,

        CE_MSEC => CE_MSEC,

        BRESET  => BRESET,

        RB_LAM  => RB_LAM_RL11,

        IB_MREQ => IB_MREQ,

        IB_SRES => IB_SRES_RL11,

        EI_REQ  => EI_REQ_RL11,

        EI_ACK  => EI_ACK_RL11

      );

  end generate RL11;

  RK11: if sys_conf_ibd_rk11 generate

  begin

    I0 : ibdr_rk11

      port map (

        CLK     => CLK,

        CE_MSEC => CE_MSEC,

        BRESET  => BRESET,

        RB_LAM  => RB_LAM_RK11,

        IB_MREQ => IB_MREQ,

        IB_SRES => IB_SRES_RK11,

        EI_REQ  => EI_REQ_RK11,

        EI_ACK  => EI_ACK_RK11

      );

  end generate RK11;

  DL11_0 : ibdr_dl11

    port map (

      CLK       => CLK,

      CE_USEC   => CE_USEC,

      RESET     => RESET,

      BRESET    => BRESET,

      RB_LAM    => RB_LAM_DL11_0,

      IB_MREQ   => IB_MREQ,

      IB_SRES   => IB_SRES_DL11_0,

      EI_REQ_RX => EI_REQ_DL11RX_0,

      EI_REQ_TX => EI_REQ_DL11TX_0,

      EI_ACK_RX => EI_ACK_DL11RX_0,

      EI_ACK_TX => EI_ACK_DL11TX_0

    );

  DL11_1: if sys_conf_ibd_dl11_1 generate

  begin

    I0 : ibdr_dl11

      generic map (

        IB_ADDR   => slv(to_unsigned(8#176500#,16)))

      port map (

        CLK       => CLK,

        CE_USEC   => CE_USEC,

        RESET     => RESET,

        BRESET    => BRESET,

        RB_LAM    => RB_LAM_DL11_1,

        IB_MREQ   => IB_MREQ,

        IB_SRES   => IB_SRES_DL11_1,

        EI_REQ_RX => EI_REQ_DL11RX_1,

        EI_REQ_TX => EI_REQ_DL11TX_1,

        EI_ACK_RX => EI_ACK_DL11RX_1,

        EI_ACK_TX => EI_ACK_DL11TX_1

      );

  end generate DL11_1;

  PC11: if sys_conf_ibd_pc11 generate

  begin

    I0 : ibdr_pc11

      port map (

        CLK        => CLK,

        RESET      => RESET,

        BRESET     => BRESET,

        RB_LAM     => RB_LAM_PC11,

        IB_MREQ    => IB_MREQ,

        IB_SRES    => IB_SRES_PC11,

        EI_REQ_PTR => EI_REQ_PC11PTR,

        EI_REQ_PTP => EI_REQ_PC11PTP,

        EI_ACK_PTR => EI_ACK_PC11PTR,

        EI_ACK_PTP => EI_ACK_PC11PTP

      );

  end generate PC11;

  LP11: if sys_conf_ibd_lp11 generate

  begin

    I0 : ibdr_lp11

      port map (

        CLK     => CLK,

        RESET   => RESET,

        BRESET  => BRESET,

        RB_LAM  => RB_LAM_LP11,

        IB_MREQ => IB_MREQ,

        IB_SRES => IB_SRES_LP11,

        EI_REQ  => EI_REQ_LP11,

        EI_ACK  => EI_ACK_LP11

      );

  end generate LP11;

  SDREG : ibdr_sdreg

    port map (

      CLK     => CLK,

      RESET   => RESET,

      IB_MREQ => IB_MREQ,

      IB_SRES => IB_SRES_SDREG,

      DISPREG => DISPREG

    );

  SRES_OR_1 : ib_sres_or_4

    port map (

      IB_SRES_1  => IB_SRES_KW11P,

      IB_SRES_2  => IB_SRES_IIST,

      IB_SRES_3  => IB_SRES_KW11L,

      IB_SRES_4  => IB_SRES_DEUNA,

      IB_SRES_OR => IB_SRES_1

    );

  SRES_OR_2 : ib_sres_or_4

    port map (

      IB_SRES_1  => IB_SRES_RHRP,

      IB_SRES_2  => IB_SRES_RL11,

      IB_SRES_3  => IB_SRES_RK11,

      IB_SRES_4  => IB_SRES_TM11,

      IB_SRES_OR => IB_SRES_2

    );

  SRES_OR_3 : ib_sres_or_3

    port map (

      IB_SRES_1  => IB_SRES_DZ11,

      IB_SRES_2  => IB_SRES_DL11_0,

      IB_SRES_3  => IB_SRES_DL11_1,

      IB_SRES_OR => IB_SRES_3

    );

  SRES_OR_4 : ib_sres_or_3

    port map (

      IB_SRES_1  => IB_SRES_PC11,

      IB_SRES_2  => IB_SRES_LP11,

      IB_SRES_3  => IB_SRES_SDREG,

      IB_SRES_OR => IB_SRES_4

    );

  SRES_OR : ib_sres_or_4

    port map (

      IB_SRES_1  => IB_SRES_1,

      IB_SRES_2  => IB_SRES_2,

      IB_SRES_3  => IB_SRES_3,

      IB_SRES_4  => IB_SRES_4,

      IB_SRES_OR => IB_SRES

    );

  INTMAP : ib_intmap

    generic map (

      INTMAP => conf_intmap)

    port map (

      EI_REQ  => EI_REQ,

      EI_ACKM => EI_ACKM,

      EI_ACK  => EI_ACK,

      EI_PRI  => EI_PRI,

      EI_VECT => EI_VECT

    );

  EI_REQ(15) <= EI_REQ_IIST;

  EI_REQ(14) <= EI_REQ_KW11L;

  EI_REQ(13) <= EI_REQ_RHRP;

  EI_REQ(12) <= EI_REQ_RL11;

  EI_REQ(11) <= EI_REQ_RK11;

  EI_REQ(10) <= EI_REQ_TM11;

  EI_REQ( 9) <= EI_REQ_DZ11RX;

  EI_REQ( 8) <= EI_REQ_DZ11TX;

  EI_REQ( 7) <= EI_REQ_DL11RX_0;

  EI_REQ( 6) <= EI_REQ_DL11TX_0;

  EI_REQ( 5) <= EI_REQ_DL11RX_1;

  EI_REQ( 4) <= EI_REQ_DL11TX_1;

  EI_REQ( 3) <= EI_REQ_PC11PTR;

  EI_REQ( 2) <= EI_REQ_PC11PTP;

  EI_REQ( 1) <= EI_REQ_LP11;

  EI_ACK_IIST     <= EI_ACK(15);

  EI_ACK_KW11L    <= EI_ACK(14);

  EI_ACK_RHRP     <= EI_ACK(13);

  EI_ACK_RL11     <= EI_ACK(12);

  EI_ACK_RK11     <= EI_ACK(11);

  EI_ACK_TM11     <= EI_ACK(10);

  EI_ACK_DZ11RX   <= EI_ACK( 9);

  EI_ACK_DZ11TX   <= EI_ACK( 8);

  EI_ACK_DL11RX_0 <= EI_ACK( 7);

  EI_ACK_DL11TX_0 <= EI_ACK( 6);

  EI_ACK_DL11RX_1 <= EI_ACK( 5);

  EI_ACK_DL11TX_1 <= EI_ACK( 4);

  EI_ACK_PC11PTR  <= EI_ACK( 3);

  EI_ACK_PC11PTP  <= EI_ACK( 2);

  EI_ACK_LP11     <= EI_ACK( 1);

  RB_LAM(15 downto 11) <= (others=>'0');

  RB_LAM(10) <= RB_LAM_PC11;

  RB_LAM( 9) <= RB_LAM_DENUA;

  RB_LAM( 8) <= RB_LAM_LP11;

  RB_LAM( 7) <= RB_LAM_TM11;

  RB_LAM( 6) <= RB_LAM_RHRP;

  RB_LAM( 5) <= RB_LAM_RL11;

  RB_LAM( 4) <= RB_LAM_RK11;

  RB_LAM( 3) <= RB_LAM_DZ11;

  RB_LAM( 2) <= RB_LAM_DL11_1;

  RB_LAM( 1) <= RB_LAM_DL11_0;

end syn;