Teledyne LeCroy IBTracer 4X - Users Manual Ver.2.30 - Manual (Page 53)

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IBTracer 4X Protocol Analyzer User’s Manual CATC SW Version 2.3
Auto Detect - This option causes the analyzer determine the speed of traffic
and record it accordingly.
Note
When in Auto Detect mode, if the link becomes disconnected for
any reason (for example, by unplugging the connector, by clicking
the Disconnect/Connect button, or by the polling process), the
analyzer will produce a "hybrid" recording. The first part of this
hybrid recording will always be in 1x mode. If the analyzer detects
a 4x link, it will eventually switch to 4x mode recording.
Note
When the analyzer switches from 1x to 4x in Autodetect mode,
the packet before and/or after the transition might include errors
due to the transition itself.
1x Mode - Forces the analyzer to record traffic at 1x speed. This option
activates only one physical lane. If used with a 4x device, 1x Mode
will force the device to downgrade its link to1x and record the
resulting 1x traffic.
4x Mode - Forces the analyzer to record traffic at 4x speed. When 4x is
selected, all four lanes are physically active.
Physical Lane Order
Physical Lane Order options let you set the way the analyzer view lane order
in a 4x link. These options do not affect the link itself. There are three
settings for each channel:
Auto-detect - Allows the analyzer to determine lane order and to record
accordingly.
Normal - Forces the analyzer to record traffic as normal.
Reversed - Forces the analyzer to record traffic as reversed.
Note
If a link is forced into an incorrect state (for example, if a normal
link is configured as reversed), then only skips will be recorded.
Skips are recorded because, from a lane order perspective, they are
symmetrical in composition.
Note
To change the lane order, select one of the Lane Order options,
then click OK. Afterwards, press the Disconnect/Connect Link
button to break the link. The analyzer can only switch lane order
after has detected a Disconnect event on the link.