Agilent Technologies 6000 Series Assign source channels to the clock, data, and frame signals

184 6000 Series Oscilloscope User’s Guide
4 Triggering the Oscilloscope
Assign source channels to the clock, data, and frame signals
1Press the Signals softkey to access SPI trigger settings for
clock source and slope, data source, and frame type and
source.
2Press the Clock softkey or turn the Entry knob to select the
channel connected to the SPI serial clock line.
As you press the Clock softkey (or rotate the Entry knob on
mixed-signal oscilloscopes), the CLK label for the source
channel is automatically set and the channel you select is
shown in the upper-right corner of the display next to “SPI”.
Adjust the trigger level for the selected analog channel by
turning the Trigger Level knob. Press the D15 Thru D0 key and
select Thresholds to set the threshold level for digital
channels. The value of the trigger level or digital threshold is
displayed in the upper-right corner of the display.
3Press the slope softkey ( ) to select rising edge or falling
edge for the selected Clock source.
This determines which clock edge the oscilloscope will use to
latch the serial data. When you press the slope softkey, the
graphic shown on the display changes to show the current
state of the clock signal.
Clock
channel
Clock
slope
Data
channel
Frame
channel
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Frame by
condition