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Protocol analysis
R&S
®
MXO 5 Series
327User Manual 1802.3369.02 ─ 02
Data transfer
[Data8]
[Parity]
Stop[Data7][Data6][Data5]
Data4Data3Data2Data1Data0
Start
Figure 13-10: Bit order in a UART word (symbol)
●
The start bit is a logic 0.
●
The stop bits and the idle state are always logic 1.
The UART protocol has no clock for synchronization. The receiver synchronizes by the
start and stop bits, and the bit rate that must be known to the receiver.
Trigger
The R&S MXO 5 can trigger on specified parts of UART serial signals:
●
Start bit
●
Parity errors, and breaks
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A serial pattern at any or a specified position
13.4.2 UART configuration
13.4.2.1 UART configuration settings
Access: [Apps] key > "Protocol" tab > "UART / RS232" > "Setup".
UART (option R&S MXO5-K510)
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