366 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
24 I2C/SPI Triggering and Serial Decode
If don't care (0xXX) is selected for data, the data will be ignored.
The trigger will always occur on the 17th clock for 7- bit addressing
or 26th clock for 10-bit addressing.
c If you have selected a three- byte trigger, press the Data2 value softkey
and turn the Entry knob to select the 8- bit data pattern on which to
trigger.
I2C Serial Decode
To set up the oscilloscope to capture I2C signals, see "Setup for I2C
Signals" on page 361.
To set up I2C serial decode:
1 Press [Serial] to display the Serial Decode Menu.
2 Choose 7-bit or 8- bit address size. Use 8-bit address size to include the
R/W bit as part of the address value, or choose 7- bit address size to
exclude the R/W bit from the address value.
3 If the decode line does not appear on the display, press the [Serial] key
to turn it on.
4 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and
decode data.
To display I2C serial decode, see "I2C Serial Decode" on page 366.
For I2C triggering setup see "I2C Triggering" on page 362.
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