Teledyne LeCroy PETracer EML Analyzer and Exerciser User Manual - Manual (Page 115)

PETracer EML User Manual Chapter 8: Recording Options
LeCroy Corporation
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Link for PETrainer EML
The Link section allows you to manage links:
Link Width: Sets the physical width of the link.
Upstream and Downstream: Gives you low-level control over each link direction. The
heading for these boxes indicates the port and/or unit to which the following options are
applied based on the current Analyzer configuration:
• Inhibit Channel: See above.
• Reverse Lanes: See above.
• Invert Polarity: See above.
Use External Reference Clock: If the PCI Express link under analysis uses
spread-spectrum clocking, then the Analyzer must use the external reference clock from
the host system. If host does not supply a reference clock, the internal reference clock in
the Analyzer module is used instead for link analysis.
Disable Descrambling: If checked, causes the Analyzer to assume that none of the
PCI Express traffic is scrambled. By default, the Analyzer determines the scrambling
state of the devices under test.