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MROD_X_In

SFP_Control

Documentation for architecture MROD_X_In/SFP_Control/a0

VHDL Contents

    1  -- EASE/HDL begin --------------------------------------------------------------
    2  -- Architecture 'a0' of 'SFP_Control.
    3  --------------------------------------------------------------------------------
    4  -- Copy of the interface declaration of Entity 'SFP_Control' :
    5  -- 
    6  --   port(
    7  --     RATE_SEL   : out    std_logic;
    8  --     TX_Disable : out    std_logic);
    9  -- 
   10  -- EASE/HDL end ----------------------------------------------------------------
   11  
   12  architecture a0 of SFP_Control is
   13  
   14  begin
   15     -- There is a difference when a GOL chip or a TLK2501
   16     -- chip is used as a transmitter to the MROD-X.
   17     -- The GOL does not have a receiver.
   18     -- The TLK2501 has a receiver and its PLL locks
   19     -- on the incomming serial data. When this input is not
   20     -- present the TLK2501 keeps sending IDLE characters!
   21     -- Therefor enable the transmitter on the MROD-X so both
   22     -- GOL and TLK2501 chip will operate with the MROD-X.
   23     TX_Disable <= '0';
   24  
   25  
   26     RATE_SEL <= '1';
   27  end architecture a0 ; -- of SFP_Control
   28  
   29