Protocol analysis
R&S
®
RTP
748User Manual 1337.9952.02 ─ 12
Remote command:
BUS<m>:CMSB:NRZ:CLCK on page 1935
Data Polarity (Manchester)
Defines the polarity of the custom serial bus data signal in Manchester coding stand-
ards. The available settings are "Normal" or "Inverted".
Remote command:
BUS<m>:CMSB:MANChester:POLarity on page 1933
Data Polarity (NRZ)
Defines the polarity of the custom serial bus data signal in NRZ coding standards. The
available settings are:
"Active high"
The value "1" is represented by a voltage above the threshold.
"Active low"
The value "1" is represented by a voltage below the threshold.
Remote command:
BUS<m>:CMSB:NRZ:POLarity on page 1938
Data Idle Polarity (NRZ Unclocked)
Defines the idle polarity of the custom serial bus data signal (only available for the cod-
ing standard "NRZ Unclocked"). The available settings are:
"Idle low"
The base value of the clock is "0"; after an idle period, the data signal
starts with a low-to-high transition.
"Idle high"
The base value of the clock is "1"; after an idle period, the data signal
starts with a high-to-low transition.
Remote command:
BUS<m>:CMSB:NRZ:IDLPolarity on page 1936
Clock Polarity (NRZ Clocked)
Defines the polarity of the custom serial bus clock signal (only available for the coding
standard "NRZ Clocked"). The available settings are:
"Idle low"
The base value of the clock is "0".
"Idle high"
The base value of the clock is "1".
Remote command:
BUS<m>:CMSB:NRZ:CPOLarity on page 1936
Clock Phase (Manchester)
Defines the phase of the custom serial bus clock signal for the Manchester coding
standards. The available settings are:
"Auto Detect"
Lets the decoder automatically select the method ("First Edge" or
"Second Edge") for detecting the clock phase.
"First Edge"
●
At "Idle" = "low": data are captured on the clock's rising edge
(low-to-high transition) and propagated on a falling edge.
●
At "Idle" = "high": data are captured on the clock's falling edge
(high-to-low transition) and propagated on a rising edge.
Custom: Manchester / NRZ (option R&S RTP-K50)M
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