Hi!
Does anybody here have experience with Virtex-4 MGTs in SONET alignment configuration?
We turn of ENPCOMMAALIGN and ENMCOMMAALIGN immediately after we see COMMDA_DETECT and still the byte aligner shifts bits around the next time it sees an A1 or A2 pattern.(This happens a couple of clock cycles after the sync pattern of 12 times A1 folloed by 12 times A2 was received.
Kolja Sulimma cronologic ohg