12 | Keysight | InfiniiVision 6000 X-Series Oscilloscopes - Data Sheet
New Standard for Price Performance: Bandwidth, Visualization, and Integration
Visualization (Continued)
Visualize burst events: Segmented memory — the
smart and efficient way
Acquisition memory size is an essential oscilloscope specification
because it determines the amount of data you can capture in a
single acquisition. In general, longer memory is better. However,
no memory is always long enough to capture all the signals
you need, especially when capturing infrequent anomalies
or rare critical serial bus error packets. Also, user interface
responsiveness typically slows down dramatically with the long
memory operations. Segmented memory acquisition lets you
selectively capture and store important signal activity without
capturing unimportant signal idle time, with a time stamp of each
segment relative to the first trigger event.
Figure 22. Segmented memory graphical representation.
For example, we have captured 1000 rare glitches over a time
span of 128 seconds with 5-GSa/s resolution in Figures 22
through 24. Automatically scrolling through all segments, we
found segment 22 at 1.7 seconds after the trigger, segment 61
at 5.3 seconds after trigger, and segment 153 at 14 seconds
after the trigger contained some of the worst glitches. The new
event lister of time stamps provides quick insight into the time
gap between glitches. With traditional unsegmented memory,
640 Gpts of memory is required to do similar analysis.
With the 6000 X-Series, you can combine the segmented memory
with the color grade and histogram features as well.
Figure 23. Segmented memory and color grade.
Figure 24. Segmented
memory time-tag lister.
Visualize and isolate burst events: Zone touch
trigger and segmented memory
The combination of the hardware-based zone touch trigger with
the 6000 X-Series’ segmented memory simplifies your debugging
tasks. In Figure 25, the 6000 X-Series’ serial bus trigger, zone
touch trigger, and segmented memory isolated and captured
200 CAN steering and airbag errors over a 30-second time span
at 6.1-MSa/s sampling rate in the segmented memory. This time
duration equates to 192 Mpts of traditional memory.
Captured error packets are displayed chronologically at the side
of the screen in the event lister so you can easily look up time
stamps. You can independently save the time stamp information
as well.
Figure 25. Segmented memory + serial bus decode + zone trigger.
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