Subversion Repositories riscv_vhdl

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

--! @file

--! @copyright  Copyright 2015 GNSS Sensor Ltd. All right reserved.

--! @author     Sergey Khabarov

--! @brief      Virtual IO buffer.

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

library ieee;

use ieee.std_logic_1164.all;

library techmap;

use techmap.gencomp.all;

entity iobuf_tech is

  generic

  (

    generic_tech : integer := 0

  );

  port (

    o  : out std_logic;

    io : inout std_logic;

    i  : in std_logic;

    t  : in std_logic

  );

end;

architecture rtl of iobuf_tech is

component iobuf_inferred is

  port (

    o  : out std_logic;

    io : inout std_logic;

    i  : in std_logic;

    t  : in std_logic

  );

end component;

component iobuf_virtex6 is

  port (

    o  : out std_logic;

    io : inout std_logic;

    i  : in std_logic;

    t  : in std_logic

  );

end component;

component iobuf_micron180 is

  port (

    o  : out std_logic;

    io : inout std_logic;

    i  : in std_logic;

    t  : in std_logic

  );

end component;

begin

  inf0 : if generic_tech = inferred generate

    bufinf : iobuf_inferred port map

    (

      o => o,

      io => io,

      i => i,

      t => t

    );

  end generate;

  xv6 : if generic_tech = virtex6 or generic_tech = kintex7 generate

    bufv6 : iobuf_virtex6 port map

    (

      o => o,

      io => io,

      i => i,

      t => t

    );

  end generate;

  m180 : if generic_tech = micron180 generate

    bufm : iobuf_micron180 port map

    (

      o => o,

      io => io,

      i => i,

      t => t

    );

  end generate;

end;