User Manual

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 Start - The oscilloscope triggers when SDA transitions from high to low while the SCL
clock is high. For triggering purposes (including frame triggers), a restart is treated as a
start condition.
 Stop - The oscilloscope triggers when data (SDA) transitions from low to high while the
clock (SCL) is high.
Figure 69 – Start vs stop condition
 Restart - The oscilloscope triggers when another start condition occurs before a Stop
Condition.
 No Ack -The oscilloscope triggers when SDA is high during any Ack SCL clock bit.
 EEPROM -The trigger looks for the EEPROM control byte value 1010xxx on the SDA line,
followed by a Read bit and an Ack bit. It then looks for the data value and qualifier set by
the Limit Range softkey and the Data1 softkey. When this event occurs, the oscilloscope
will trigger on the clock edge for the Ack bit after the data byte. This data byte does not
need to occur directly after the control byte.
Figure 70 - EEPROM trigger
To set the oscilloscope to trigger on an EEPROM Data Read condition:
a) Press the Limit Range softkey to set the oscilloscope to trigger when the data is
= (equal to), < (less than), or > (greater than) the data value set in the Data1 softkey.