Rohde & Schwarz MXO 4 Series - UART (Option R&S MXO4-K510); UART (Option R&SMXO4-K510); About the UART; RS-232 Interface

Protocol analysisMXO 4 Series
354User Manual 1335.5337.02 ─ 07
2,C2h,-0.24914,'ACK'
3,B3h,-0.24903,'ACK'
Details frame 3
Index,Formatted data,Ack bit start,Ack bit
1,E1h,-0.2488,'ACK'
2,C2h,-0.24869,'ACK'
Details frame 4
Index,Formatted data,Ack bit start,Ack bit
1,F1h,-0.24846,'ACK'
2,C4h,-0.24835,'ACK'
3,B3h,-0.24824,'NACK'
Details frame 5
Index,Formatted data,Ack bit start,Ack bit
1,DEh,-0.2479,'ACK'
2,C2h,-0.24779,'ACK'
3,B3h,-0.24768,'ACK'
13.4 UART (option R&S MXO4-K510)
The Universal Asynchronous Receiver/Transmitter UART converts a word of data into
serial data, and vice versa. It is the base of many serial protocols such as RS-232.
Required options and equipment
For performing UART decode measurements, you need the following equipment:
●
MXO 4 with 2 available channels. The channels can be a combination of the follow-
ing:
– Analog channels (C1-C4)
– Logic channels (D0-D15) (requires option R&S MXO4-B1)
●
Option R&S MXO4-K510
●
Two probes
13.4.1 About the UART / RS-232 interface
The UART uses only one line, or two lines for transmitter and receiver.
Data transfer
The data is transmitted in words, also referred to as symbols or characters. Each word
consists of a start bit, several data bits, an optional parity bit, and one or more stop
bits. Several words can form a package, or frame. The end of a package is marked
with a reserved word or by a pause between two words.
UART (option R&S
MXO4-K510)