Rohde & Schwarz RTP044 - MDIO Decode Results

Protocol analysis
R&S
®
RTP
796User Manual 1337.9952.02 ─ 12
REGAD/DEVAD ← MDIO Trigger Type
Sets the register address or device address (5 bits) of the frame pattern; available only
in trigger type "Data".
Remote command:
TRIGger<m>:MDIO:REGI on page 1994
DATA/ADDRESS ← MDIO Trigger Type
Defines the payload data pattern or address pattern (16 bits); available only in trigger
type "Data".
Remote command:
TRIGger<m>:MDIO:DATA on page 1994
13.17.3.2 Triggering on MDIO
Prerequisite: A serial bus is configured for the MDIO signal to be analyzed.
For the basic trigger settings, proceed in the following way:
1. Press the [Protocol] key and selet the "Shortcuts" tab.
2. Press "Setup trigger".
3. Tap the "Source" button and select the "Serial bus" trigger source.
4. Tap "Serial bus" and select the serial bus that is set to MDIO.
5. Tap "Trigger Type MDIO" and select the trigger type to be used for MDIO protocol
analysis.
6. If the trigger type "Data" is selected, the frame pattern has to be specified.
For information on how to proceed with the configuration settings, see Chap-
ter 13.17.3.1, "MDIO trigger settings", on page 793.
13.17.4 MDIO decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1. In the "Protocol" dialog > "Setup" 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 514.
The instrument captures and decodes the signal according to the standard definition
and the configuration settings.
The color-coding of the various protocol sections and errors simplifies the interpretation
of the visual display. The decode information condenses or expands, depending on the
horizontal scale. Various data formats are available to show the result values.
MDIO (option R&S
RTP-K55)