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Keysight U4301 PCIe Gen3 Analyzer User's Guide
Specify whether lane reversal is on or off for the U4301 module.
• The On option sets the lane reversal feature to On for the U4301 module and configures the
module to perform lane reversal. This option requires that the lane reversal should be On for
the monitored link as well otherwise the data capture will not happen on encountering a
mismatch in the lane reversal On/Off value at the DUT and Analyzer ends.
• The Off option sets the lane reversal feature to Off for the U4301 module and configures the
module NOT to perform lane reversal. This option requires that the lane reversal should be Off
on the monitored link as well otherwise the data capture will not happen on encountering a
mismatch in the lane reversal On/Off value at the DUT and Analyzer ends.
• The Auto option configures the U4301 module to automatically detect lane reversal based on
the TS ordered sets that it sees during the LTSSM training of the monitored link. When this
option is selected, the module automatically switches its lane reversal feature to On or Off to
match the lane reversal On/Off that it detects on the monitored link.
Note:
•
Automatic Lane reversal detection is not impacted if you have filtered packets such as TS
ordered sets.
•
If you want to set the Lane Reversal to Auto, then you must ensure that the Capture Link
Speed is set to Auto in the Capture Setup tab.
•
For the automatic lane reversal to work, make sure that the monitored link is Up after the
U4301 module is up and running so that the module can detect lane reversal for the
monitored link.
Specifying the Connection Setup
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