ID:15159 serialdatain input port of GXB transmitter channel atom "<name>" must be fed by an input pin when slpbk input port is used

CAUSE: The serialdatain input port of the specified gigabit transceiver block (GXB) transmitter channel atom is not fed by any logic. When the slpbk input port is used, the serialdatain input port must be fed by an input pin.

ACTION: Connect the serialdatain input port of the GXB transmitter channel atom to an input pin.