Keysight LPDDR5, Руководство пользователя

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1 Setting Up for LPDDR Bus Decode
2 LPDDR5 Decoder User’s Guide
• The LPDDR5 Decoder can show information from multiple subchannels of your LPDDR5 memory
design in a single Listing window. The subchannels information is time-correlated and presented
as separate columns in a single listing window. This eliminates the need to have a separate viewer
for each subchannel's information.
While LPDDR5 Decoder has key strengths, it is recommended to use the DDR/LPDDR Memory
Analysis viewer instead of LPDDR5 Decoder in the following situations:
• If you want to specify how your SDRAM address components (rank, bank, row, and column
addresses) are used to construct an overall physical address so that the reconstructed address
can be displayed for each read or write operation. then you should use the DDR/LPDDR Memory
Analysis viewer. The LPDDR5 Decoder does not support physical address reconstruction.
• If you want to view the details (memory address and Read/Write data) for the individual Read or
Write commands, then you should use the Details tab of the DDR/LPDDR Memory Analysis
viewer. The LPDDR5 Decoder does not show the data associated with a Read or Write command.
• If you want to do higher-level analysis such as analyzing your SDRAM's traffic statistics, Refresh
rate, or performance measurements for data transfer rates and memory utilization, then you
should use various charts and statistics provided in different tabs of the DDR/LPDDR Memory
Analysis viewer. The LPDDR5 Decoder does not provide any of these higher-level analysis features
and is focused on displaying traffic decode at a given point in the trace.
Required Hardware, Software, and Licenses
On installing the LPDDR5 Decoder software, you can access this tool from the following location in
the Logic and Protocol Analyzer GUI.
Required Hardware Required Software Required License
• U4164A Logic Analyzer module
to capture LPDDR5 data
• LPDDR5 memory bus probes
• Logic and Protocol Analyzer
software version 7.0 or higher
• LPDDR5 Decoder software
These can be downloaded and
installed from:
www.keysight.com/find/lp
a-sw-download
No separate license is needed specifically for the
LPDDR5 Decoder. However, you must have
installed the following standard memory license for
LPDDR5.
B4661A-6TP/6FP/6NP LPDDR5 Analysis and
Compliance Validation license
Without this license, you can only view and analyze
the decoded LPDDR5 data from an existing .ala file
in offline mode.