Keysight N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes

Keysight N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes
Keysight N8821A
USB 3.1 Protocol Triggering and Decode
for Infiniium Series Oscilloscopes
Data Sheet
02 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
Easily Debug and Test Designs That Include USB 3.1 Protocols
Serial buses such as USB 3.1 are widely used today in electronic designs. In many
designs, these serial buses provide content-rich points for debug and test. However,
since these protocols transfer bits serially, using a traditional oscilloscope has
limitations. Manually converting captured 1’s and 0’s to protocol requires significant
effort. In addition, traditional scope triggers are not sufficient for specifying protocollevel conditions.
Now you can extend your oscilloscope’s capability with the N8821A USB 3.1 protocol
triggering and decode application. It makes it easy to debug and test USB 3.1 designs.
–– Set up your scope to show USB 3.1 protocol decode in less than 30 seconds.
–– Get access to a rich set of integrated software-based protocol-level triggers.
–– Save time and eliminate errors by viewing packets at the protocol level.
–– Use time-correlated views to quickly troubleshoot serial protocol problems back to
their timing or signal integrity root cause.
03 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
Easily Debug and Test Designs That Include USB 3.1 Protocols (Continued)
30-second USB 3.1 setup
Configure your oscilloscope to display protocol decode in under 30 seconds. Use “Auto
Setup” to automatically configure sample rate, memory depth and threshold and trigger
levels.
Figure 1. Configure your oscilloscope to display protocol decode in less than 30 seconds. Use “Auto
Setup” to automatically configure sample rate, memory depth and threshold and trigger levels.
04 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
USB 3.1 Protocol Triggering and Searching
Get access to a rich set of integrated protocol-level triggers. The application includes a
suite of configurable protocol-level trigger conditions specific to USB 3.1. The application
uses software-based search triggering when serial triggering is selected.
With software-based protocol triggering, the oscilloscope takes signals acquired using
scope channels and reconstructs protocol frames after each acquisition. It then inspects
these protocol frames against specified protocol-level trigger conditions and triggers
when the condition is met.
USB 3.1 trigger and search setup
Figure 2. Choose to trigger on ordered sets, data packets, protocol errors and other packets.
05 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
USB 3.1 Protocol Triggering and Searching (Continued)
Quickly find occurrences
Figure 3. Quickly move to next occurrence of a specified event. Jump to the next or previous
occurrence of the specified event.
USB 3.1 protocol decode
The Keysight Technologies, Inc. USB 3.1 protocol viewer includes correlation between
the waveforms and the selected packet. The selected packet (highlighted blue row in
the listing) is time-correlated with the blue vertical line in the waveform display. Move
the blue tracking marker in time through waveforms, and the blue bar will automatically
track in the packets window. Or you can scroll through the packet viewer and highlight a
specific packet. The time-correlation tracking marker will move to the associated point in
the waveform.
Figure 4. USB 3.1 protocol decode with precise time-correlation between waveforms and listing.
06 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
USB 3.1 Protocol Triggering and Searching (Continued)
USB 3.1 protocol decode (Continued)
Fill the entire display with compact protocol information using the full screen listing. The
protocol viewer window shows the index number, time stamp value, and data content for
each serial packet in the list. Scroll through all decoded serial packets to find events of
interest or errors in the transmission. Data in the listing window can be saved as .csv or
.txt file for offline analysis or documentation. Error packets are shown in red to help with
debug.
Figure 5. Full screen USB 3.1 listing.
07 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
Ordering Information
Application
License type
USB 3.1 protocol
triggering and decode
Fixed
Floating
Factory-installed
User-installed
Transportable
Server-based
Infiniium
V-Series and
Z-Series
N8821A-1FP
N8821A-1FP
N8821A-1TP
Infiniium
S-Series
Infiniium
90000A Series
Infiniium
90000 X-Series
Infiniium
9000 Series
N8821B-1FP
N8821B-1FP
N8821B-1TP
DSO90000-086
N8821A-1FP
N8821A-1TP
N5435A-092
N8821A-1FP
N8821A-1FP
N8821A-1TP
N8821B-1FP
N8821B-1FP
N8821B-1TP
Related Literature
Publication name
Infiniium V-Series Oscilloscopes - Data Sheet
Publication number
5992-0425EN
Keysight Oscilloscopes
Multiple form factors from 20 MHz to > 90 GHz | Industry leading specs | Powerful applications
08 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
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09 | Keysight | N8821A USB 3.1 Protocol Triggering and Decode for Infiniium Series Oscilloscopes - Data Sheet
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© Keysight Technologies, 2016
Published in USA, January 5, 2016
5992-1257EN
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