U4321A Datasheet, PDF (5/12 Pages) Keysight Technologies – PCI Express® 3.0 Analyzer Module

Product Features and Benefits Overview
U4301A analyzer module
Effective presentation of protocol interac-
tions from physical layer to transaction layer
–– LTSSM Overview with full state transaction traffic
capture at the PHY layer logic sub block
–– Industry standard spreadsheet format protocol viewer
with:
–– Highlighting by packet type or direction
–– Easy flow columns to better understand the stimulus
and response nature of the protocols
–– Context sensitive columns to show only the relevant
information, minimizing the need to scroll horizontally
–– Flexible GUI configuration to meet debug needs, with
pre-defined GUI layouts for link training debug, config
accesses and general I/O
LTSSM analysis is easy with detailed tracking of each state
transition and that is displayed in a linear state-view, state
transition table and state bubble chart.
Transaction decode
The Transaction Decode tab in the Protocol Viewer
window allows you to compute and view transactions
decoded from the captured PCIe traffic. The decoding and
display of transactions is done as per the relevant storage
protocol specifications such as NVMe to help you easily
correlate the decoded data to the protocol specifications
and evaluate DUT’s compliance to these specifications.
Transaction decoding of NVMe data includes analysis of
the trace to identify all of the relevant transactions types
to present a transaction overview table that enable quick
and easy navigation of key packet types.
Performance analysis
The PCIe Performance Overview tab in the Protocol
Viewer window allows you to perform post process-
ing on the captured PCIe traffic to generate an offline
performance summary of a wide variety of bus traffic
including bus utilization and data throughput as well as
transaction measures like response times and latency.
These performance measures are displayed in tabular as
well as charts form.
NVMe transaction information provides easy to understand
displays of NVMe payloads and PRP messages. Transaction
overview of all transactions enables instant access to all
messages in the capture trace.
PCIe performance is calculated on bus utilization, throughput,
and response times. These views provide the detail needed to
calculate the operation performance of any device.
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