In retransmission mode, the port STAT_RX_MUBITS reflects the value of
Bits[31:24] of the most recently received Burst Control Word or in other words, the most
recently received primary sequence number. The signal
STAT_RX_MUBITS_UPDATED indicates an update on the port
STAT_RX_MUBITS.
The outputs STAT_RX_RETRANS_SEQ and
STAT_RX_RETRANS_SUBSEQ reflect the last good primary sequence and
implied sub-sequence number forwarded to the RX LBUS.
The signal STAT_RX_RETRANS_SEQ_UPDATED indicates an update on the ports
STAT_RX_RETRANS_SEQ and
STAT_RX_RETRANS_SUBSEQ.
By comparing the values on these ports, the retransmission operation can be easily observed.
The value of the implied sub-sequence number on the port
STAT_RX_RETRANS_SUBSEQ will not be correct until after the sequence
has been established.