Teledyne LeCroy PETracer EML Analyzer and Exerciser User Manual - Manual (Page 14)

Chapter 1: Overview PETracer EML User Manual
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LeCroy Corporation
1.3 CATC Trace Software
PETracer EML utilizes the CATC Trace™ to assist users in analyzing how PCI Express
components work together, diagnose problems, and test for interoperability and
standards compliance.
The CATC Trace is a powerful and intuitive expert software system embedding detailed
knowledge of the protocol hierarchy and intricacies, as defined in the protocol
specification. The software allows the user to control the Analyzer and set specific
real-time triggering and filtering conditions. The CATC Trace utilizes a Windows-based
graphical display that has been optimized for fast and easy navigation through a captured
traffic session. Users are alerted as violations are detected at all levels of the protocol
layering and can easily drill down on areas of interest or collapse and hide fields that are
not relevant.
Programmable ACK/NAK behavior ACK all TLP packets
NAK all TLP packets
Automatic ACK/NAK behavior
ACK/NAK delay timer
Programmable Flow control behavior Set Credit values
Disable Credit checking
Set Update InitFC intervals
Automatic CRC 
calculation and Sequence number
assignment
DLLP CRC calculation
TLP LCRC calculation
Replay buffer Programmable Transaction timeout timer
Auto Recovery behavior after 4 Replays
Programmable 
configuration space
Full 4 KB configuration space configurable by user
Accessible through Configuration Reads and Writes
over PCI Express
Programmable address spaces
(PETracer EML only)
Automatic transaction completer
(PETracer EML only)