Rohde & Schwarz RTE Series - MDIO (Option R&S RTE-K55); The MDIO Protocol

Protocol analysis
R&S
®
RTE
801User Manual 1326.1032.02 ─ 20
The search for events is set up in the following way:
1. Press [SEARCH] or tap "Search" > "Setup" in the menu bar.
2. If the dialog box does not contain a search entry, tap the "Add" icon to create one,
as described in "To create a user-defined search" on page 460.
3. Specify search criteria according to Chapter 13.14.6.1, "Custom Manchester / NRZ
search setup", on page 799.
4. To acquire a waveform, press [RUN N× SINGLE].
The R&S RTE performs a custom serial bus decode according to the thresholds
and protocol settings of the associated serial bus source (here in our example
SB1).
5. To start searching the acquired waveform for specific events, tap "Enable" in the
search setup dialog:
The R&S RTE displays the "Search Results" box that lists the detected events.
For information on how to configure the search results presentation and how to navi-
gate the search results, see also "To display search zoom windows" on page 466 and
"Navigating search results" on page 447.
13.15 MDIO (option R&S RTE-K55)
The R&S RTE-K55 option enables the R&S RTE to analyse Management Data Input/
Output (MDIO) protocols. The option is compatible with the Ethernet standard
IEEE 802.3 (http://standards.ieee.org/findstds/standard/802.3-2012.html) and supports
simplified triggering and decoding for both variants of MDIO: Clause 22 with basic
addressing, and Clause 45 with advanced addressing that meets the requirements of
10 Gigabit Ethernet devices.
● The MDIO protocol................................................................................................801
● MDIO configuration............................................................................................... 803
● MDIO trigger..........................................................................................................806
● MDIO label list.......................................................................................................809
● MDIO decode results............................................................................................ 810
● Search on decoded MDIO data.............................................................................813
13.15.1 The MDIO protocol
MDIO is used for bidirectional transfer of control and status information between the
physical layer entity (PHY) and the station management entities (STA).
A major application of MDIO is fault detection by interrogating registers of physical
devices. Hence, MDIO serial bus visualization helps debugging new products by giving
developers a quick insight into the native data on the bus without using a special
decoder.
MDIO (option R&S
RTE-K55)