CMX_version.vhd

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library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

library work;
use work.CMXpackage.all;
use work.CMX_flavor_package.all;
use work.CMX_local_package.all;

use work.CMX_VME_defs.all;

entity CMX_version is
  port (
    clk40         : in    std_logic;    --system clock
    ncs           : in    std_logic;    --ports forwarded to the vme register instances
    rd_nwr        : in    std_logic;
    ds            : in    std_logic;
    addr_vme      : in    std_logic_vector (15 downto 0);
    data_vme_out  : out   std_logic_vector (15 downto 0);
    bus_drive     : out   std_logic
    );
end CMX_version;

architecture Behavioral of CMX_version is


  
  component vme_local_switch is
    port (
      data_vme_up          : out std_logic_vector (15 downto 0);
      data_vme_from_below  : in  arr_16;
      bus_drive_up         : out std_logic;
      bus_drive_from_below : in  std_logic_vector);
  end component vme_local_switch;

  component vme_outreg_notri_async is
    generic (
      ia_vme : integer;
      width  : integer);
    port (
      ncs         : in  std_logic;
      rd_nwr      : in  std_logic;
      ds          : in  std_logic;
      addr_vme    : in  std_logic_vector (15 downto 0);
      data_vme    : out std_logic_vector (15 downto 0);
      bus_drive   : out std_logic;
      data_to_vme : in  std_logic_vector (width-1 downto 0));
  end component vme_outreg_notri_async;
  
  
  signal data_to_vme : arr_16( numactchan*(numbitsinchan+1) - 1  downto 0);

  signal data_vme_out_local : arr_16(3 downto 0);
  signal bus_drive_local : std_logic_vector(3 downto 0);

  signal data_to_vme_REG_RO_VERSION_COMMON : std_logic_vector(15 downto 0);
  signal data_to_vme_REG_RO_VERSION_FLAVOR_COMMON : std_logic_vector(15 downto 0);
  signal data_to_vme_REG_RO_VERSION_FLAVOR_LOCAL : std_logic_vector(15 downto 0);
  signal data_to_vme_REG_RO_CMX_FLAVOR : std_logic_vector(15 downto 0);
  
begin


  vme_local_switch_inst: entity work.vme_local_switch
    port map (
      data_vme_up           => data_vme_out,
      data_vme_from_below   => data_vme_out_local,
      bus_drive_up          => bus_drive,
      bus_drive_from_below  => bus_drive_local);


  vme_outreg_notri_async_REG_RO_VERSION_COMMON: entity work.vme_outreg_notri_async
    generic map (
      ia_vme  => ADDR_REG_RO_VERSION_COMMON ,
      width   => 16)
    port map (
      ncs          => ncs,
      rd_nwr       => rd_nwr,
      ds           => ds,
      addr_vme     => addr_vme,
      data_vme     => data_vme_out_local (0),
      bus_drive    => bus_drive_local (0),
      data_to_vme  => data_to_vme_REG_RO_VERSION_COMMON);

  data_to_vme_REG_RO_VERSION_COMMON<=version_common;

  
  vme_outreg_notri_async_REG_RO_VERSION_FLAVOR_COMMON: entity work.vme_outreg_notri_async
    generic map (
      ia_vme  => ADDR_REG_RO_VERSION_FLAVOR_COMMON ,
      width   => 16)
    port map (
      ncs          => ncs,
      rd_nwr       => rd_nwr,
      ds           => ds,
      addr_vme     => addr_vme,
      data_vme     => data_vme_out_local (1),
      bus_drive    => bus_drive_local (1),
      data_to_vme  => data_to_vme_REG_RO_VERSION_FLAVOR_COMMON);

  data_to_vme_REG_RO_VERSION_FLAVOR_COMMON<=version_flavor_common;


  
  vme_outreg_notri_async_REG_RO_VERSION_FLAVOR_LOCAL: entity work.vme_outreg_notri_async
    generic map (
      ia_vme  => ADDR_REG_RO_VERSION_FLAVOR_LOCAL ,
      width   => 16)
    port map (
      ncs          => ncs,
      rd_nwr       => rd_nwr,
      ds           => ds,
      addr_vme     => addr_vme,
      data_vme     => data_vme_out_local (2),
      bus_drive    => bus_drive_local (2),
      data_to_vme  => data_to_vme_REG_RO_VERSION_FLAVOR_LOCAL);

  data_to_vme_REG_RO_VERSION_FLAVOR_LOCAL<=version_flavor_local;


  vme_outreg_notri_async_REG_RO_CMX_FLAVOR: entity work.vme_outreg_notri_async
    generic map (
      ia_vme  => ADDR_REG_RO_CMX_FLAVOR,
      width   => 16)
    port map (
      ncs          => ncs,
      rd_nwr       => rd_nwr,
      ds           => ds,
      addr_vme     => addr_vme,
      data_vme     => data_vme_out_local (3),
      bus_drive    => bus_drive_local (3),
      data_to_vme  => data_to_vme_REG_RO_CMX_FLAVOR);

  data_to_vme_REG_RO_CMX_FLAVOR<=this_cmx_flavor;


 
end Behavioral;