Teledyne LeCroy PETracer ML Analyzer and Exerciser User Manual - Manual (Page 16)

Chapter 1: Overview PETracer ML User Manual
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Teledyne LeCroy
PETracer ML supports the pairing of two UPAS/PETracer ML. Pairing doubles the width
of the PCI Express bidirectional link that can be monitored from x4 to x8.
PETracer ML uses hardware triggering to capture real-time events, and hardware filtering
to filter in or out different types of packets from the recording. Filtering allows users to
focus recordings on events of interest and to preserve recording memory so that the
recording time can be extended. All traffic is recorded non-intrusively, meaning that
PETracer ML does not adversely affect the link it is recording.
Recorded data is presented in colored graphics in a CATC Trace viewer application. This
application has advanced search and viewing capabilities that allow the user to quickly
locate specific data, errors, and other desired conditions, thereby focusing the user’s
attention on events of interest.
The PETracer ML Protocol Analyzer functions with any personal computer using the
Microsoft
®
Windows
®
XP or Vista operating system and equipped with a functional USB
interface.
PETracer ML provides on-the-fly detection of and triggering on PCI Express events.
Whether recording manually or with a specified trigger condition, PETracer ML
continuously records the link data in a wrap-around fashion until manually stopped or until
the Trigger Event is detected and a specified amount of post-Trigger link data is recorded.
Upon detection of a triggering event, the Analyzer continues to record data up to a point
specified by the user. Real-time detection of events can be individually enabled or
disabled to allow triggering on events as they happen. This includes predefined exception
or error conditions and a user-defined set of trigger events. The unit can also be triggered
by an externally supplied signal. An external DB-25 connector provides a path for
externally supplied data or timing data to be recorded along with traffic.
This DB-25 connector also provides a path for PETracer ML to transmit signals externally
for purposes of probing and use by other circuitry.