Rigol MSO2000A Series Programming Manual page 299

2 Command System
:TRIGger:IIC:WHEN
Syntax
:TRIGger:IIC:WHEN <trig_type>
:TRIGger:IIC:WHEN?
Description
Set or query the trigger condition of I2C trigger.
Parameter
Name Type
<trig_type> Discrete
Explanation
STARt: trigger when SDA data transitions from high level to low level while SCL is high level.

RESTart: trigger when another start condition occurs before a stop condition.

STOP: trigger when SDA data transitions from low level to high level while SCL is high level.

NACKnowledge: trigger when the SDA data is high level during any acknowledgement of SCL clock

position.
ADDRess: the trigger searches for the specified address value and trigger on the read/write bit.

DATA: the trigger searches for the specified data value on the SDA and trigger on th SCL jumping

edge of the last bit of the data.
ADATa: search for the specified address and data values at the same time and trigger when the

"Address" and "Data" conditions are met at the same time.
Return Format
The query returns STAR, REST, STOP, NACK, ADDR, DATA or ADAT.
MSO2000A/DS2000A Programming Guide
Range
{STARt|RESTart|STOP|NACKnowledge|ADDRess|DATA|ADATa}
RIGOL
Default
STARt
2-283