The RX User Side interface indicates an error condition using the
rx_errout<N> signal.
If rx_errout<N> is asserted, it usually indicates that the packet
being received contains an error. One possible error condition that must be examined
carefully is a missing SOP or EOP. In this event, theIntegrated Interlaken IP core
attempts to recover the data by merging packets and closing them, presenting the data on
the RX LBUS with an rx_errout<N> indication. You should ensure that
the transmitting device is sending proper SOP and EOP indications.
Ensure that the stat_rx_overflow_err signal is not asserted. If it is
asserted, the RX LBUS is not being clocked fast enough to empty the RX buffer. The LBUS
must have more bandwidth than the Interlaken interface.