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Remote control commands
R&S
®
RTA4000
620
User Manual 1335.7898.02 ─ 08
17.11.3.2
I²C - trigger
To configure the protocol trigger, make sure to set first:
●
BUS
●
SBUS1 | SBUS2
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TRIGger:A:I2C:MODE
<Mode>
Specifies the trigger mode for I²C.
Parameters:
<Mode>
STARt | RESTart | STOP | MACKnowledge | PATTern
STARt
Start of the message. The start condition is a falling slope on
SDA while SCL is high.
RESTart
Restarted message. The restart is a repeated start condition.
STOP
End of the message. The stop condition is a rising slope on SDA
while SCL is high.
MACKnowledge
Missing acknowledge. If the transfer failed, at the moment of the
acknowledge bit the SCL and the SDA lines are both on high
level.
PATTern
Triggers on a set of trigger conditions: read or write access of
the master, to an address, or/and to a bit pattern in the mes-
sage.
For a complete configuration of the pattern mode, you have to
set:
(address), and/or
(pattern)
*RST:
STARt
TRIGger:A:I2C:ACCess
<Access>
Toggles the trigger condition between Read and Write access of the master.
Serial bus analysis