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gr1553b_pkg.vhd
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------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2010, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, 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 more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------
-- Package: gr1553b_pkg
-- File: gr1553b_pkg.vhd
-- Author: Magnus Hjorth - Aeroflex Gaisler
-- Description: Package for GR1553B top-level component and user-visible types
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.ahb_mst_in_type;
use grlib.amba.ahb_mst_out_type;
use grlib.amba.apb_slv_in_type;
use grlib.amba.apb_slv_out_type;
package gr1553b_pkg is
-----------------------------------------------------------------------------
-- Types and top level component
type gr1553b_txout_type is record
busA_txP: std_logic;
busA_txN: std_logic;
busA_txen: std_logic;
busA_rxen: std_logic;
busB_txP: std_logic;
busB_txN: std_logic;
busB_txen: std_logic;
busB_rxen: std_logic;
-- For convenience, inverted versions of txen
busA_txin: std_logic;
busB_txin: std_logic;
end record;
type gr1553b_rxin_type is record
busA_rxP: std_logic;
busA_rxN: std_logic;
busB_rxP: std_logic;
busB_rxN: std_logic;
end record;
type gr1553b_auxin_type is record
extsync: std_logic;
rtaddr: std_logic_vector(4 downto 0);
rtpar: std_logic;
end record;
type gr1553b_auxout_type is record
rtsync: std_logic;
busreset: std_logic;
validcmdA: std_logic;
validcmdB: std_logic;
timedoutA: std_logic;
timedoutB: std_logic;
badreg: std_logic;
irqvec: std_logic_vector(7 downto 0);
end record;
constant gr1553b_rxin_zero: gr1553b_rxin_type :=
(busA_rxP=>'0', busA_rxN=>'0', busB_rxP=>'0', busB_rxN=>'0');
constant gr1553b_txout_zero: gr1553b_txout_type :=
('0','0','0','0','0','0','0','0','1','1');
constant gr1553b_auxin_zero: gr1553b_auxin_type :=
(extsync => '0', rtaddr => "00000", rtpar => '0');
constant gr1553b_auxout_zero: gr1553b_auxout_type :=
('0','0','0','0','0','0','0',x"00");
constant gr1553b_rxin_none: gr1553b_rxin_type := gr1553b_rxin_zero;
constant gr1553b_txout_none: gr1553b_txout_type := gr1553b_txout_zero;
constant gr1553b_auxin_none: gr1553b_auxin_type := gr1553b_auxin_zero;
constant gr1553b_auxout_none: gr1553b_auxout_type := gr1553b_auxout_zero;
component gr1553b is
generic(
hindex: integer := 0;
pindex : integer := 0;
paddr: integer := 0;
pmask : integer := 16#fff#;
pirq : integer := 0;
bc_enable: integer range 0 to 1 := 1;
rt_enable: integer range 0 to 1 := 1;
bm_enable: integer range 0 to 1 := 1;
bc_timer: integer range 0 to 2 := 1;
bc_rtbusmask: integer range 0 to 1 := 1;
extra_regkeys: integer range 0 to 1 := 0;
syncrst: integer range 0 to 2 := 1;
ahbendian: integer range 0 to 1 := 0
);
port(
clk: in std_logic;
rst: in std_logic;
ahbmi: in ahb_mst_in_type;
ahbmo: out ahb_mst_out_type;
apbsi: in apb_slv_in_type;
apbso: out apb_slv_out_type;
auxin: in gr1553b_auxin_type;
auxout: out gr1553b_auxout_type;
codec_clk: in std_logic;
codec_rst: in std_logic;
txout: out gr1553b_txout_type;
txout_fb: in gr1553b_txout_type;
rxin: in gr1553b_rxin_type
);
end component;
-----------------------------------------------------------------------------
-- Pads convenience component
component gr1553b_pads is
generic (
padtech: integer;
outen_pol: integer range 0 to 1
);
port (
txout: in gr1553b_txout_type;
rxin: out gr1553b_rxin_type;
busainen : out std_logic;
busainp : in std_logic;
busainn : in std_logic;
busaoutenin : out std_logic;
busaoutp : out std_logic;
busaoutn : out std_logic;
busbinen : out std_logic;
busbinp : in std_logic;
busbinn : in std_logic;
busboutenin : out std_logic;
busboutp : out std_logic;
busboutn : out std_logic
);
end component;
-----------------------------------------------------------------------------
-- Wrappers for netlists etc.
component gr1553b_stdlogic is
generic (
bc_enable: integer range 0 to 1 := 1;
rt_enable: integer range 0 to 1 := 1;
bm_enable: integer range 0 to 1 := 1;
bc_timer: integer range 0 to 2 := 1;
bc_rtbusmask: integer range 0 to 1 := 1;
extra_regkeys: integer range 0 to 1 := 0;
syncrst: integer range 0 to 2 := 1;
ahbendian: integer range 0 to 1 := 0
);
port (
clk: in std_logic;
rst: in std_logic;
codec_clk: in std_logic;
codec_rst: in std_logic;
-- AHB interface
mi_hgrant : in std_logic; -- bus grant
mi_hready : in std_ulogic; -- transfer done
mi_hresp : in std_logic_vector(1 downto 0); -- response type
mi_hrdata : in std_logic_vector(31 downto 0); -- read data bus
mo_hbusreq: out std_ulogic; -- bus request
mo_htrans : out std_logic_vector(1 downto 0); -- transfer type
mo_haddr : out std_logic_vector(31 downto 0); -- address bus (byte)
mo_hwrite : out std_ulogic; -- read/write
mo_hsize : out std_logic_vector(2 downto 0); -- transfer size
mo_hburst : out std_logic_vector(2 downto 0); -- burst type
mo_hwdata : out std_logic_vector(31 downto 0); -- write data bus
-- APB interface
si_psel : in std_logic; -- slave select
si_penable: in std_ulogic; -- strobe
si_paddr : in std_logic_vector(7 downto 0); -- address bus (byte addr)
si_pwrite : in std_ulogic; -- write
si_pwdata : in std_logic_vector(31 downto 0); -- write data bus
so_prdata : out std_logic_vector(31 downto 0); -- read data bus
so_pirq : out std_logic; -- interrupt bus
-- Aux signals
bcsync : in std_logic;
rtsync : out std_logic;
busreset : out std_logic;
rtaddr : in std_logic_vector(4 downto 0);
rtaddrp : in std_logic;
-- 1553 transceiver interface
busainen : out std_logic;
busainp : in std_logic;
busainn : in std_logic;
busaouten : out std_logic;
busaoutp : out std_logic;
busaoutn : out std_logic;
busbinen : out std_logic;
busbinp : in std_logic;
busbinn : in std_logic;
busbouten : out std_logic;
busboutp : out std_logic;
busboutn : out std_logic
);
end component;
component gr1553b_nlw is
generic(
tech: integer := 0;
hindex: integer := 0;
pindex : integer := 0;
paddr: integer := 0;
pmask : integer := 16#fff#;
pirq : integer := 0;
bc_enable: integer range 0 to 1 := 1;
rt_enable: integer range 0 to 1 := 1;
bm_enable: integer range 0 to 1 := 1;
bc_timer: integer range 0 to 2 := 1;
bc_rtbusmask: integer range 0 to 1 := 1;
extra_regkeys: integer range 0 to 1 := 0;
syncrst: integer range 0 to 2 := 1
);
port(
clk: in std_logic;
rst: in std_logic;
ahbmi: in ahb_mst_in_type;
ahbmo: out ahb_mst_out_type;
apbsi: in apb_slv_in_type;
apbso: out apb_slv_out_type;
auxin: in gr1553b_auxin_type;
auxout: out gr1553b_auxout_type;
codec_clk: in std_logic;
codec_rst: in std_logic;
txout: out gr1553b_txout_type;
txout_fb: in gr1553b_txout_type;
rxin: in gr1553b_rxin_type
);
end component;
-----------------------------------------------------------------------------
-- APB Register definitions
constant REG_IRQSTATUS: std_logic_vector := x"00";
constant REG_IRQENABLE: std_logic_vector := x"04";
constant REG_BCSTATUS: std_logic_vector := x"40";
constant REG_BCACTION: std_logic_vector := x"44";
constant REG_BCSCHEMADDR: std_logic_vector := x"48";
constant REG_BCASYNCADDR: std_logic_vector := x"4C";
constant REG_BCTIME: std_logic_vector := x"50";
constant REG_BCWAKEUP: std_logic_vector := x"54";
constant REG_BCIRQSRC: std_logic_vector := x"58";
constant REG_BCRTBUSMASK: std_logic_vector := x"5C";
constant REG_BCSCHEMSLOT: std_logic_vector := x"68";
constant REG_BCASYNCSLOT: std_logic_vector := x"6C";
constant REG_RTSTATUS: std_logic_vector := x"80";
constant REG_RTCONFIG: std_logic_vector := x"84";
constant REG_RTBUSSTAT: std_logic_vector := x"88";
constant REG_RTBUSWORDS: std_logic_vector := x"8C";
constant REG_RTSYNC: std_logic_vector := x"90";
constant REG_RTTABLEADDR: std_logic_vector := x"94";
constant REG_RTMODECONFIG: std_logic_vector := x"98";
constant REG_RTTIMETAG: std_logic_vector := x"A4";
constant REG_RTLOGMASK: std_logic_vector := x"AC";
constant REG_RTLOGPOS: std_logic_vector := x"B0";
constant REG_RTIRQSRC: std_logic_vector := x"B4";
constant REG_BMSTATUS: std_logic_vector := x"C0";
constant REG_BMCONFIG: std_logic_vector := x"C4";
constant REG_BMADDRFILT: std_logic_vector := x"C8";
constant REG_BMSAFILT: std_logic_vector := x"CC";
constant REG_BMMCFILT: std_logic_vector := x"D0";
constant REG_BMBUFSTART: std_logic_vector := x"D4";
constant REG_BMBUFEND: std_logic_vector := x"D8";
constant REG_BMBUFPOS: std_logic_vector := x"DC";
constant REG_BMTIMETAG: std_logic_vector := x"E0";
-----------------------------------------------------------------------------
-- Test signal generators
component gr1553b_tgapb is
generic(
codec_clk_freq_mhz: integer := 20;
sameclk: integer range 0 to 1 := 0;
pindex : integer := 0;
paddr: integer := 0;
pmask : integer := 16#fff#;
extmodeen: integer range 0 to 1 := 0;
bitbangen: integer range 0 to 1 := 0;
memtech: integer := 0
);
port(
clk: in std_logic;
rst: in std_logic;
codec_clk: in std_logic;
codec_rst: in std_logic;
apbsi: in apb_slv_in_type;
apbso: out apb_slv_out_type;
txout_core: in gr1553b_txout_type;
rxin_core: out gr1553b_rxin_type;
txout_bus: out gr1553b_txout_type;
rxin_bus: in gr1553b_rxin_type;
testing: out std_logic
);
end component;
-----------------------------------------------------------------------------
-- Simulation types and components for test bench
-- U=Undefined, X=Unknown, 0=Zero, +=High, -=Low
type uwire1553 is ('U','X','0','+','-');
type uwire1553_array is array(natural range <>) of uwire1553;
function resolved (a: uwire1553_array) return uwire1553;
subtype wire1553 is resolved uwire1553;
component simtrans1553_single is
port (
buswire: inout wire1553;
rxen: in std_logic;
txin: in std_logic;
txP: in std_logic;
txN: in std_logic;
rxP: out std_logic;
rxN: out std_logic
);
end component;
component simtrans1553 is
port (
busA: inout wire1553;
busB: inout wire1553;
rxenA: in std_logic;
txinA: in std_logic;
txAP: in std_logic;
txAN: in std_logic;
rxAP: out std_logic;
rxAN: out std_logic;
rxenB: in std_logic;
txinB: in std_logic;
txBP: in std_logic;
txBN: in std_logic;
rxBP: out std_logic;
rxBN: out std_logic
);
end component;
component combine1553 is
port (
clk: in std_ulogic;
txin1,rxen1: in std_ulogic;
tx1P,tx1N: in std_ulogic;
rx1P,rx1N: out std_ulogic;
txin2,rxen2: in std_ulogic;
tx2P,tx2N: in std_ulogic;
rx2P,rx2N: out std_ulogic;
txin,rxen: out std_ulogic;
txP,txN: out std_ulogic;
rxP,rxN: in std_ulogic
);
end component;
end package;
package body gr1553b_pkg is
function resolved (a: uwire1553_array) return uwire1553 is
variable w,w2: uwire1553;
begin
w := a(a'left);
for q in a'range loop
w2 := a(q);
if w /= w2 then
case w is
when 'U' => w := 'X';
when 'X' => null;
when '0' => w := w2;
when '+' | '-' => if w2 /= '0' then w:='X'; end if;
end case;
end if;
end loop;
return w;
end;
end package body;