Iic Triggering - Teledyne T3DSO2000 Series User Manual

IIC Triggering

This part introduces the nine kinds of trigger conditions (Start, Stop, Restart, No Ack,
EEPROM, 7 Addr&Data, 10 Addr&Data and Data Length) and the methods of setting
them.
Introduction to the trigger conditions
�� Start Condition— The oscilloscope will be triggered when the SDA signal
�� Stop Condition— The oscilloscope will be triggered when the SDA transitions
�� Restart— The oscilloscope will be triggered when another 'Start condition'
�� No Ack— The oscilloscope will be triggered when SDA data is high during any
�� EEPROM — The trigger searches for an EEPROM control byte (the value is
1.800.561.8187
transitions from high to low while the SCL clock is high. If it is chosen as the
condition of trigger (including frame triggers), a restart will be treated as a 'Start
Condition'.
from low to high while the SCL is high.
occurs before a 'Stop condition'.
SCL's ACK bit.
1010xxx) on the SDA bus, there is a Read bit, and an ACK bit after EEPROM.
Use the Limit Range softkey to set the qualifier and Data1 softkey to set the
data's value. If the EEPROM's data is greater(less than, or equal) than Data1, the
oscilloscope will be triggered at the edge of ACK bit after the Data byte. It's not
necessary that the Data byte must follow the EEPROM.
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