User guide

PCS-PMA
Interface
Width
Supported Word
Aligner Modes
Supported
Word
Aligner
Pattern
Lengths
rx_std_wa_
patternalign
behavior
rx_syncstatus
behavior
rx_patterndetect
behavior
when the FPGA
fabric-asserted
BITSLIP signal
toggles.
Manual 8, 16, 32 Word alignment
is controlled by
rising-edge of
rx_std_wa_
patternalign.
Stays high after
the word aligner
aligns to the
word alignment
pattern. Goes
low on receiving
a rising edge on
rx_std_wa_
patternalign
until a new word
alignment
pattern is
received.
Asserted high for one
parallel clock cycle
when the word
alignment pattern
appears in the current
word boundary.
20
Bit slip 7 rx_std_wa_
patternalign
has no effect on
word alignment.
The double
width word
aligner updates
the word
boundary, only
when the FPGA
fabric-asserted
BITSLIP signal
toggles.
N/A N/A
UG-01143
2015.05.11
Word Aligner Pattern Length for Various Word Aligner Modes
5-47
Arria 10 Transceiver PHY Architecture
Altera Corporation
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