Agilent Technologies InfiniiVision 3000 X- Series Advanced Training Manual page 73

Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
Figure 50 Capturing I
You should see on your scope's display what appears to be an un- triggered
display of two digital signals similar to
triggering on random rising edges of channel- 1, which is the scope's
default trigger condition. But these signals are too complex to establish a
unique trigger point using simple edge triggering. The signal being
captured by channel- 1 is an I
being captured by channel- 2 is an I
set up the scope to intelligently decode this data stream based on the I
protocol, and then we will establish a more unique trigger point using I
triggering.
12
13
14
15
16
17
3000 X-Series Oscilloscopes Advanced Training Guide
2
C clock and data while triggering on an edge of the clock
(channel-1).
Press the [Serial] front key.
Press the Mode softkey; then select the I
Entry.
Press the Signals softkey and verity that SCL is defined as channel- 1,
and that SDA is defined as channel- 2 (default conditions).
Press the (Back) front panel button (above power switch) to return
Back
to the previous menu.
Press the Addr Size softkey and verify that 7 Bit is selected.
Press the Lister softkey; then select to show a list of Serial 1 (I
the Entry knob.
Figure 50. Your scope is actually
2
C serial clock signal (SCL), and the signal
2
C serial data signal (SDA). Let's first
2
C serial decode mode using the
4
2
C
2
C
2
C) using
73