R&S RTO6, Руководство пользователя

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Protocol analysis
R&S
®
RTO6
744 User Manual 1801.6687.02 ─ 05
Figure 13-30: Serial bus MDIO protocol configuration dialog
See also: Chapter 13.1.1, "Setup - general settings" , on page 485
Source
MDIO requires two source channels, one for clock and one for data.
"Clock" Defines the source settings for the clock line (management data
clock, MDC). Typically, select any of the analog channels "C1"
–
"C4"
or digital channels "D0"
–
"D15", depending on the test application.
"Math" or "Ref" waveforms are also permitted.
"Data" Defines the source settings for the data signal. Typically, select any of
the analog channels "C1"
–
"C4" or digital channels "D0"
–
"D15",
depending on your application, but not the same as for "Clock".
"Math" or "Ref" waveforms are also permitted.
Remote command:
BUS<m>:MDIO:CLOCk:SOURce
on page 2040
BUS<m>:MDIO:DATA:SOURce
on page 2041
Thresholds
MDIO defines two thresholds for each source line:
●
Vih(min) is being used for the rising edge evaluation. This "h" (high) threshold is
the minimum value for the signal to be identified as "1". If the signal value comes
from a low state (hence, rising edge), the state remains to be considered as low
("0"), until it has risen above Vih(min).
MDIO (option R&S RTO6-K540)