Teledyne LeCroy PETracer EML Analyzer and Exerciser User Manual - Manual (Page 15)

PETracer EML User Manual Chapter 1: Overview
LeCroy Corporation
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1.4 PETracer EML Analyzer
The PETracer EML allows semiconductor, motherboard and add-in card manufacturers
to capture, analyze and view PCI Express traffic.
There are two ways to connect the PETracer EML to the point-to-point PCI Express bus,
using either a card-edge slot Interposer card or a mid-bus probe (for more information
about mid-bus probes, refer to the PETracer Mid-Bus Probe™ Installation Guide).
PCI Express traffic can then be non-intrusively recorded. Live data is sent from the
PETracer EML to a PC in order display real-time statistics. Sophisticated trigger options
are used to capture and buffer only data of interest. Real-time hardware filters in the
system filter out unwanted traffic in order to maximize memory buffer utilization. Captured
data is uploaded to the PC for further processing and displayed by the powerful
CATC Trace
TM software.
PETracer EML provides accurate, reliable and complete decodes of Transaction Layer
Packets (TLPs), Data Link Layer Packets (DLLPs), and all PCI Express ordered sets.
The buffer size has been increased in the PETracer EML to 4GB per direction.
PCI Express Specification 1.1, 1.0a, and 1.0 are supported at the full-speed of 2.5GHz
per lane. Automatic disparity checking, lane deskewing and data descrambling are all
supported. The FPGA based design is fully field upgradeable. The PETracer EML can be
controlled remotely via the user’s LAN.
Sophisticated controls allow the user to decide what is captured and how it is viewed in
order to analyze design problems and perform root cause analysis. Powerful triggering
conditions allow the user to trigger on Error, Link, TLP, DLLP or any user-defined data
pattern in the traffic. Each type of trigger condition can be cascaded to create complex
multi-layer triggers. Trigger points can be set to any location within the buffer to allow the
user to capture data before and after the trigger. Full-featured filtering capabilities allow
engineers to isolate areas of interest. Captured packets can be expanded or collapsed.
Columns are user configurable to allow hiding fields that are not relevant. Powerful
search capabilities further enhance the users abilities to solve engineering and
production problems.