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-- $Id: fx2rlinklib.vhd 525 2013-07-06 12:19:39Z mueller $

--

-- Copyright 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:   fx2rlinklib

-- Description:    Definitions for rlink + fx2 interface combos

--

-- Dependencies:   -

-- Tool versions:  xst 13.3; ghdl 0.29

--

-- Revision History: 

-- Date         Rev Version  Comment

-- 2013-04-20   509   1.0    Initial version 

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

library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

use work.slvtypes.all;

use work.rblib.all;

use work.rlinklib.all;

use work.serportlib.all;

use work.fx2lib.all;

package fx2rlinklib is

--

-- core + fx2 interface combo

--

component rlink_sp1c_fx2 is             -- rlink_core8+serport_1clk+fx2_ic combo

  generic (

    ATOWIDTH : positive :=  5;          -- access timeout counter width

    ITOWIDTH : positive :=  6;          -- idle timeout counter width

    CPREF : slv4 := c_rlink_cpref;      -- comma prefix

    IFAWIDTH : natural :=  5;           -- ser input fifo addr width  (0=none)

    OFAWIDTH : natural :=  5;           -- ser output fifo addr width (0=none)

    PETOWIDTH : positive := 10;         -- fx2 packet end time-out counter width

    CCWIDTH :   positive :=  5;         -- fx2 chunk counter width

    ENAPIN_RLMON : integer := sbcntl_sbf_rlmon;  -- SB_CNTL for rlmon (-1=none)

    ENAPIN_RBMON : integer := sbcntl_sbf_rbmon;  -- SB_CNTL for rbmon (-1=none)

    CDWIDTH : positive := 13;           -- clk divider width

    CDINIT : natural   := 15);          -- clk divider initial/reset setting

  port (

    CLK  : in slbit;                    -- clock

    CE_USEC : in slbit;                 -- 1 usec clock enable

    CE_MSEC : in slbit;                 -- 1 msec clock enable

    CE_INT : in slbit := '0';           -- rri ito time unit clock enable

    RESET  : in slbit;                  -- reset

    ENAXON : in slbit;                  -- enable xon/xoff handling

    ENAESC : in slbit;                  -- enable xon/xoff escaping

    ENAFX2 : in slbit;                  -- enable fx2 usage

    RXSD : in slbit;                    -- receive serial data      (board view)

    TXSD : out slbit;                   -- transmit serial data     (board view)

    CTS_N : in slbit := '0';            -- clear to send   (act.low, board view)

    RTS_N : out slbit;                  -- request to send (act.low, board view)

    RB_MREQ : out rb_mreq_type;         -- rbus: request

    RB_SRES : in rb_sres_type;          -- rbus: response

    RB_LAM : in slv16;                  -- rbus: look at me

    RB_STAT : in slv3;                  -- rbus: status flags

    RL_MONI : out rl_moni_type;         -- rlink_core: monitor port

    RLB_MONI : out rlb_moni_type;       -- rlink 8b: monitor port

    SER_MONI : out serport_moni_type;   -- ser: monitor port

    FX2_MONI : out fx2ctl_moni_type;    -- fx2: monitor port

    I_FX2_IFCLK : in slbit;             -- fx2: interface clock

    O_FX2_FIFO : out slv2;              -- fx2: fifo address

    I_FX2_FLAG : in slv4;               -- fx2: fifo flags

    O_FX2_SLRD_N : out slbit;           -- fx2: read enable    (act.low)

    O_FX2_SLWR_N : out slbit;           -- fx2: write enable   (act.low)

    O_FX2_SLOE_N : out slbit;           -- fx2: output enable  (act.low)

    O_FX2_PKTEND_N : out slbit;         -- fx2: packet end     (act.low)

    IO_FX2_DATA : inout slv8            -- fx2: data lines

  );

end component;

component ioleds_sp1c_fx2               -- io activity leds for rlink_sp1c_fx2

  port (

    CLK  : in slbit;                    -- clock

    CE_USEC : in slbit;                 -- 1 usec clock enable

    RESET  : in slbit;                  -- reset

    ENAFX2 : in slbit;                  -- enable fx2 usage

    RB_SRES : in rb_sres_type;          -- rbus: response

    RLB_MONI : in rlb_moni_type;        -- rlink 8b: monitor port

    SER_MONI : in serport_moni_type;    -- ser: monitor port

    IOLEDS : out slv4                   -- 4 bit IO monitor (e.g. for DSP_DP)

  );

end component;

end package fx2rlinklib;