Agilent Technologies 5 If you have set the oscilloscope to trigger on an EEPROM Data Read condition:

3-27
Triggering the Oscilloscope
To use I2C triggering
10-bit Write: the oscil loscope trigger s on a 10- bit writ e frame o n the 26th clock
edge if all bits in the pattern match. The frame is in the format:
Frame (Start: Address byte 1: Write: Addre ss byte 2: Ack: Data)
For triggering purposes, a restart is treated as a start condition.
5 If you have set the oscilloscope to trigger on an EEPROM Data Read
condition:
Press the Data is softkey t o se t the osc illo scop e to t rig ger w hen data is = (equal
to), ≠(not e qua l t o), < ( les s th an ), o r > (great er t han ) t he d ata val ue s et in t he
Data softkey.
The oscilloscope will trigger on the clock edge for t he Ack bit after the trigger
event is found. This data byte does not need to occur directly after the control
byte. The oscilloscope will trigger on any data byte that meets the criteria
defined by the Data is and Data softkeys during a current address read o r a
random read or a sequential read cycle.
SCL
SDA
Start or
Trigger point
Address
R/W Ack2 Data Ack
Restart
Stop
Write
Condition
Condition
26th clock edge
Ack1
1st byte
Address
2nd byte