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Serial Bus Analysis
R&S
®
RTC1000
127User Manual 1335.7352.02 ─ 04
The bus is only available if it is configured correctly.
5.
Press the [FILTER] key in the Trigger section to list all available I
2
C trigger condi-
tions.
6. Configure the trigger condition. Possible conditions are described below.
7. Press the Back softkey until all menus are closed.
The oscilloscope triggers on the condition. For measurements without measuring
object, refer to chapter
Chapter 10.2.5, "Serial Buses", on page 118.
START
Triggers on the frame start sequence. The start sequence is the falling slope on SDA
when SCL is high.
STOP
Triggers on the frame stop sequence. The stop signal is the rising slope on SDA when
SCL is high.
RESTART
Triggers if a new start sequence occurs before the stop condition. The new start signal
is a repeated start signal.
NOT-ACKNOWLEDGE
The NOT-ACKNOWLEDGE bit is the 9th bit in a data or address pattern of the SDA
line. For NOT-ACKNOWLEDGE, the acknowledge bit is high on SDA, although it
should be low.
READ/WRITE
Sets the following additional trigger options:
I
2
C Bus (Option R&S RTC-K1)
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