Technical data

Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs 4
3000 X-Series Oscilloscopes Advanced Training Guide 109
34 Press the Search Edge softkey; then select Serial 1 (I
2
S).
35 Press the Audio Left softkey and change to Audio Right.
36 Press the Search for softkey; then select > (Greater than).
37 Press the Data softkey; then turn the Entry knob to select 10.
The white triangles near the top of the waveform area mark the time
location of each “found” occurrence of our search operation as shown in
Figure 82. These frames are also marked in orange in the first/pointer
column of the lister table. Your scope should have found and marked
approximately 20 occurrences of this search operation based on a total
acquisition time of 100 ms. Note that the number of “found” events is
indicated near the bottom of the display. To automatically navigate to
right- channel data byte > +10, press the and front panel navigation
keys.
Let’s now use the scope’s Segmented Memory mode of acquisition to
capture 100 consecutive occurrences of I
2
S serial bus traffic when
right- channel > +10. But to complete the rest of this lab your scope must
be licensed with the Segmented Memory option.
38 Push the horizontal position/delay knob to re- position the trigger point
back to center-screen.
39 Set the scope’s timebase to 200.0 µs/div.
40 Press the [Run/Stop] front panel to begin repetitive acquisition again.
Figure 82 Automatic Search & Navigation on I
2
S data.