Technical data

Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs 4
4000 X-Series Oscilloscopes Advanced Training Guide 121
24 Press the [Mode/Coupling] key in the Trigger section of the front panel;
then select the Normal trigger mode.
Using the default trigger value of arming on right- channel value
≤ - 10 and
then trigger on right- channel value
≥ +10, your scope should now be
triggering on “R: +20” with this byte shown at center- screen similar to
Figure 81. Let’s now capture a longer stream of I
2
S traffic and then
manually search through the captured and decoded record.
25 Press the [Serial] front panel key.
26 Tap the Lister softkey; then use the Window menu to select Half-Screen.
27 Set the scope’s timebase to 10.00 ms/div.
28 Press [Run/Stop] to stop repetitive acquisitions.
29 Tap the Scroll Lister softkey; then turn the Entry knob to manually scroll
through the lister table.
As you scroll through the data, note that waveforms “track”. This means
that the frame that the arrow points to in the lister table corresponds to
the waveforms that are positioned at center- screen. If you want to zoom
in on a particular I
2
S frame of data, either push the Entry knob, or tap
Figure 81 Triggering on I
2
S right-channel = +20.