Triggering 4
InfiniiVision Oscilloscopes User’s Guide 121
I
2
S Trigger
The N5468A (Option SND) I²S trigger and serial decode option adds the ability to decode
serial data to 4-channel or 4+16 channel oscilloscopes. To control serial decode press the
[Acquire] key.
An I
2
S (Inter-IC Sound or Integrated Interchip Sound) trigger setup consists of connecting
the oscilloscope to the serial clock, word select, and serial data lines and then triggering
on a data value.
1 Press [Save/Recall]&Default Setup.
2 Press the [Label] key to switch labels on.
3 Turn on any analog or digital channels that you will be using for the I
2
S signals.
4 Press the [More] key in the Trigger section of the front panel. Rotate the Entry knob
until I
2
S is displayed in the Trigger softkey.
5 Press the Settings softkey to display the I
2
S Trigger Menu.
Signals
menu
Bus
configuration
menu
I2S trigger
setup menu
Trigger level
or threshold
Currently selected channel
I
2
S trigger
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