361
Agilent InfiniiVision 3000 X-Series Oscilloscopes
User's Guide
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I2C/SPI Triggering and Serial Decode
Setup for I2C Signals 361
I2C Triggering 362
I2C Serial Decode 366
Setup for SPI Signals 370
SPI Triggering 373
SPI Serial Decode 375
I2C/SPI triggering and serial decode requires Option EMBD or the
DSOX3EMBD upgrade.
Setup for I2C Signals
I
2
C (Inter-IC bus) signals setup consists of connecting the oscilloscope to
the serial data (SDA) line and the serial clock (SCL) line and then
specifying the input signal threshold voltage levels.
To set up the oscilloscope to capture I
2
C signals, use the Signals softkey
which appears in the Serial Decode Menu:
1 Press [Label] to turn on labels.
2 Press [Serial].
3 Press the Serial softkey, turn the Entry knob to select the desired slot
(Serial 1 or Serial 2), and press the softkey again to enable decode.
Only one SPI serial bus can be decoded at a time.
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