library ieee;
use ieee.std_logic_1164.all;

entity cbb_top is

port (
    RST_n               : in  std_logic; -- power up reset from the DS1818
    -- clock input from the DCS board
    CLK40in             : in  std_logic;
    CLK40out            : out std_logic;
    CLK80out            : out std_logic;

    -- SCSN I/O to DCS board
    SCSNIN              : in  std_logic;
    SCSNOUT             : out std_logic;

    -- SCSN I/O to TLMU
    IF17x_SCSN_IN       : in  std_logic;
    IF17x_SCSN_OUT      : out std_logic;

    -- TTCrx
    L1ACCEPT            : in  std_logic;
    B_Channel           : in  std_logic;
    IO_C0               : in  std_logic;           -- SOR/EOR signal from DCS board


    -- TTCex
    A_ECL               : out std_logic;
    B_ECL               : out std_logic;
    BC_ECL              : out std_logic;

    CB_TOF              : out std_logic;
    L_OUTSP             : out std_logic;      -- spare to TLMU

    -- PIM
    PIMLINK             : out std_logic_vector(2 downto 0);

    -- GTU
    BUSY                : in  std_logic_vector(1 downto 0);
                            -- 0 is rising edge, 1 falling

    -- Two RJ-45 connectors with LVDS signals
    S1_IN               : in  std_logic_vector(1 to 2);
    S1_OUT              : out std_logic_vector(1 to 2);
    S2_IN               : in  std_logic_vector(1 to 2);
    S2_OUT              : out std_logic_vector(1 to 2);

    -- TLMU interface
    --
    CLK40T              : out std_logic;  -- clock to the TLMU
    RESET_TOFFPGA       : out std_logic;
    CNRRL               : out std_logic;  -- enable for TLMU interface
                                            -- used for primary/backup switching
    -- SCSN pass through to TLMU
    SCSNFEBIN           : in  std_logic;
    SCSNFEBOUT          : out std_logic;

    -- TLMU trigger inputs
    TLMU_trg            : in  std_logic_vector(7 downto 0);
    -- flow control I/Os
    SPA                 : out std_logic;
    SPB                 : out std_logic;

    -- input from CB-A/C
    CB_A                : in  std_logic_vector(1 downto 0);
    CB_C                : in  std_logic_vector(1 downto 0);
                            -- 0 is rising edge, 1 falling

--  -- bidir bus to the SIU
--  fbDin               : out std_logic_vector (31 downto 0);
--  fbDout              : in  std_logic_vector (31 downto 0);
--  fbIEN               : out std_logic;
--  fbOEN               : in  std_logic;
--  fbICTRL             : out std_logic;
--  fbOCTRL             : in  std_logic;
--  fiBEN_N             : in  std_logic;
--  fiDIR               : in  std_logic;
--  fiLF_N              : in  std_logic;
--  foBSY_N             : out std_logic;
--  foCLK               : out std_logic;

    -- Front-Panel LEDs
    LED                 : out   std_logic_vector(1 to 2);

    SPC                 : in  std_logic;
    SPD                 : in  std_logic);

--component
    -- serial 7-channel ADC ADC78H89 to monitor the supply voltages
--  ADC_CSN             : out std_logic;
--  ADC_SCLK            : out std_logic;
--  ADC_SDI             : in  std_logic;
--  ADC_SDO             : out std_logic;
--
--  -- Dallas 1-Wire Temperature Sensor DS18B20, bidirectional cell
--  TSENS_o             : out std_logic; -- output
--  TSENS_e             : out std_logic; -- output enable
--  TSENS_i             : in  std_logic; -- input
--
--  -- SFP Module I2C and present
--  SFP_PRESENT         : in  std_logic;
--  SFP_SCL             : out std_logic;
--  SFP_SDA_i           : in  std_logic;
--  SFP_SDA_o           : out std_logic;
--  SFP_SDA_e           : out std_logic;
--

attribute BLACK_BOX : boolean;
attribute BLACK_BOX of cbb_top : entity is true;

end cbb_top;

architecture black_box of cbb_top is

begin

end;