LPDDR5 Decoder
User’s Guide
1
LPDDR5 Decoder - Overview
The Keysight LPDDR5 Decoder software lets you decode and view transactions and commands from
an LPDDR5 SDRAM memory bus in your device under test.
This decoder works with the Keysight Logic and Protocol Analyzer software application (in online /
offline mode) to decode the acquired LPDDR5 traces. The data acquisition can be done using a
compatible Keysight Logic Analyzer module. See
“Required Hardware, Software, and Licenses"
The decoded LPDDR5 data can then be viewed and analyzed using the Listing window in the Logic
and Protocol Analyzer application. LPDDR5 data is displayed as raw hexadecimal data in this
window. The decoder does not inverse assemble the data payload. It shows the decode of the traffic
at any given point in the trace.
Flow of steps to use the LPDDR5 Decoder
1 Install the required software and licenses.
2 Set up the logic analyzer module, probing hardware, and connections to DUT.
3 Configure the Logic and Protocol Analyzer software setup and LPDDR5 Decoder settings as per
your testing requirements.
4 Capture LPDDR5 data.
5 View and analyze the decoded data in the Listing window.
Related Tools
• The
DDR Setup Assistant
is a wizard-like application that helps you set up your logic analyzer
properly for DDR data capture and analysis. It guides you through the setup process and
automates setting threshold voltages and sample positions for control/address signals. For more
information, see DDR Setup Assistant - At a Glance.
• The
DDR Eyescan
tool helps you set the logic analyzer threshold and sampling positions for read
data and write data signals.
• The
DDR5 Decoder
tool to decode and view transactions and commands from a DDR5 SDRAM
memory bus.
• The
DDR/LPDDR Memory Analysis Viewer
to analyze the captured DDR/LPDDR memory data
using various charts and statistical data such as traffic statistics, bus utilization, refresh rate
analysis, and data for Read/Write commands.
When to Use the LPDDR5 Decoder
There are situations when the LPDDR5 Decoder is more suitable and provides key benefits as
compared to the Keysight DDR/LPDDR Memory Analysis viewer. Following are examples of such
situations.
• The LPDDR5 Decoder does not decode the entire trace in one go. At a time, it decodes only that
specific portion of your trace that you are currently viewing in its Listing window. This significantly
reduces the time it takes to decode and display results. This is especially useful when you have a
long trace to decode and you want to immediately view the decoded information.
Summary of Contents for LPDDR5
Page 1: ...Keysight LPDDR5 Decoder User s Guide ...
Page 8: ...8 LPDDR5 Decoder User s Guide Contents ...
Page 16: ...2 Setting Up for LPDDR Bus Decode 8 LPDDR5 Decoder User s Guide ...
Page 18: ...3 Capturing Data 10 LPDDR5 Decoder User s Guide ...
Page 24: ...4 Capturing Data 16 LPDDR5 Decoder User s Guide ...
Page 30: ...5 Troubleshooting the Decoder 22 LPDDR5 Decoder User s Guide ...
