Subversion Repositories funbase_ip_library

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-- file        : hibi_orbus_small.vhd

-- description : Bus resolution is done by ORring all the inputs. E.g.

--               data_out <= data_0_in or data_1_in or...

-- author      : Erno Salminen

-- date        : 2012-03-07

-- modified    : 

-- 

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-- Funbase IP library Copyright (C) 2011 TUT Department of Computer Systems

--

-- This source file may be used and distributed without

-- restriction provided that this copyright statement is not

-- removed from the file and that any derivative work contains

-- the original copyright notice and the associated disclaimer.

--

-- This source file is free software; you can redistribute it

-- and/or modify it under the terms of the GNU Lesser General

-- Public License as published by the Free Software Foundation;

-- either version 2.1 of the License, or (at your option) any

-- later version.

--

-- This source is distributed in the hope that it will be

-- useful, but WITHOUT ANY WARRANTY; without even the impliedlk

-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

-- PURPOSE.  See the GNU Lesser General Public License for more

-- details.

--

-- You should have received a copy of the GNU Lesser General

-- Public License along with this source; if not, download it

-- from http://www.opencores.org/lgpl.shtml

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library ieee;

use ieee.std_logic_1164.all;

use ieee.std_logic_arith.all;

use ieee.std_logic_unsigned.all;

--use work.hibiv3_pkg.all;                -- hibi v3 commands

entity hibi_orbus_small is

  generic (

    data_width_g           : integer := 32;

    comm_width_g           : integer := 5

  );

  port (

    bus_av_out   : out std_logic;

    bus_data_out : out std_logic_vector(data_width_g-1 downto 0);

    bus_comm_out : out std_logic_vector (comm_width_g-1 downto 0);

    bus_lock_out : out std_logic;

    bus_full_out : out std_logic;

    bus_av_0_in   : in std_logic;

    bus_data_0_in : in std_logic_vector(data_width_g-1 downto 0);

    bus_comm_0_in : in std_logic_vector (comm_width_g-1 downto 0);

    bus_lock_0_in : in std_logic;

    bus_full_0_in : in std_logic;

    bus_av_1_in   : in std_logic;

    bus_data_1_in : in std_logic_vector(data_width_g-1 downto 0);

    bus_comm_1_in : in std_logic_vector (comm_width_g-1 downto 0);

    bus_lock_1_in : in std_logic;

    bus_full_1_in : in std_logic;

    bus_av_2_in   : in std_logic;

    bus_data_2_in : in std_logic_vector(data_width_g-1 downto 0);

    bus_comm_2_in : in std_logic_vector (comm_width_g-1 downto 0);

    bus_lock_2_in : in std_logic;

    bus_full_2_in : in std_logic;

    bus_av_3_in   : in std_logic;

    bus_data_3_in : in std_logic_vector(data_width_g-1 downto 0);

    bus_comm_3_in : in std_logic_vector (comm_width_g-1 downto 0);

    bus_lock_3_in : in std_logic;

    bus_full_3_in : in std_logic

    );

end hibi_orbus_small;

architecture structural of hibi_orbus_small is

begin  -- structural

  -- continuous assignments

  bus_av_out  <= bus_av_0_in    or bus_av_1_in   or bus_av_2_in   or bus_av_3_in ;

  bus_data_out <= bus_data_0_in or bus_data_1_in or bus_data_2_in or bus_data_3_in;

  bus_comm_out <= bus_comm_0_in or bus_comm_1_in or bus_comm_2_in or bus_comm_3_in;

  bus_lock_out <= bus_lock_0_in or bus_lock_1_in or bus_lock_2_in or bus_lock_3_in;

  bus_full_out <= bus_full_0_in or bus_full_1_in or bus_full_2_in or bus_full_3_in;

end structural;