Protocol analysis
R&S
®
RTE
811User Manual 1326.1032.02 ─ 20
DEVAD, TA and DATA fields. The zoom shows both the honeycomb display and the
binary decode results of that second frame.
Figure 13-90: Decoded and binary MDIO signal trace, and decode results table
green brackets [...] = start and end of frame
blue frame = frame ok
red frame = frame containing an error
grey = preamble (PRE), start pattern (ST), operation code (OP = frame type), or turnaround
(TA) fields
dark green = PHY address or port address (depending on clause)
dark purple = register address or device address field (depending on clause)
yellow = data field or address field (depending on clause)
Table 13-20: Content of the "Decode results" table in the previous figure
Column Description
Frame Number of the acquired frame
State
State of frame, available messages are:
●
OK
●
OPcode error
●
Length error
●
Incomplete frame
●
Unsynchronized bits
Start Start time of the frame
Stop Stop time of the frame
ST
Start of frame code, 2 bits
●
"01" (Clause 22)
●
"00" (Clause 45)
MDIO (option R&S RTE-K55)
To Next Page
Loading...
