Rohde & Schwarz MXO 4 Series - Page 357

Protocol analysisMXO 4 Series
357User Manual 1335.5337.02 ─ 07
Bit order
Selects the bit order, which determines if the data of the messages starts with MSB
(most significant bit) or LSB (least significant bit).
Remote command:
SBUS<sb>:UART:BORDer on page 747
Polarity
Defines the logic levels of the bus. The idle state corresponds to a logic 1. The start bit
corresponds to a logic 0. "Idle high" (high=1) is used, for example, for control signals,
while "Idle low" (low=1) is defined for data lines (RS-232).
Remote command:
SBUS<sb>:UART:POLarity on page 749
Bit rate
Sets the number of transmitted bits per second.
Remote command:
SBUS<sb>:UART:BITRate on page 747
Stop bits
Sets the number of stop bits: 1 or 1.5 or 2 stop bits are possible.
Remote command:
SBUS<sb>:UART:SBIT on page 750
Data bits
Sets the number of data bits of a word in a range from 5 bits to 8 bits. If no parity bit is
used, then 9 data bits are possible.
Remote command:
SBUS<sb>:UART:SSIZe on page 750
Parity
Defines the optional parity bit that is used for error detection.
"None"
No parity bit is used.
"Odd"
The parity bit is set to "1" if the number of data bits set to "1" is even.
"Even"
The parity bit is set to "1" if the number of data bits set to "1" is odd.
"Mark"
The parity bit is always a logic 1.
"Space"
The parity bit is always a logic 0.
"Don't care"
The parity is ignored.
Remote command:
SBUS<sb>:UART:PARity on page 748
Packets
Allows you to define packets of several words in the data stream.
"None"
Packets are not considered.
UART (option R&S MXO4-K510)