Protocol analysis
R&S
®
RTE
721User Manual 1326.1032.02 ─ 20
SFD Error ← Errors
Triggers on a frame with invalid Start Frame Delimiter (SFD).
Remote command:
TRIGger<m>:HBTO:ERRor:SFD on page 1683
13.12.3.2 Triggering on 100BASE-T1
Prerequisite: A bus is configured for the 100BASE-T1 signal to be analyzed.
For the basic trigger settings, proceed in the following way:
1. Press the [PROTOCOL] key and select the "Trigger" tab.
2. Press the "Select" button. The "Source" button is shown.
3. Tap the "Source" button and select the "Serial bus" trigger source.
4. Select the serial bus that is set to 100BASE-T1.
5. Tap "Type" and select the trigger type to be used for 100BASE-T1 protocol analy-
sis.
6. To refine the trigger settings, configure additional settings, which are available for
some trigger types.
For details, see Chapter 13.12.3, "100BASE-T1 trigger", on page 716.
13.12.4 100BASE-T1 label list
Label lists are protocol-specific. Label lists for 100BASE-T1 are available in CSV and
PTT format.
A 100BASE-T1 label file contains two values for each ethernet header:
●
Ethernet Header Display
●
Symbolic label: name of the address, specifiing its function in the bus network.
13.12.5 100BASE-T1 decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1. In the "Protocol" dialog > "Decode" tab, enable "Decode".
2. In the "Protocol" dialog > "Display" tab, select additional result display settings:
"Show decode table" and "Show binary signals".
For a description of the display settings, see also Chapter 13.1.3, "Display",
on page 515.
The instrument captures and decodes the signal according to the standard definition
and the configuration settings.
Ethernet 100BASE-T1 (option R&S
RTE-57)
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