Remote control commands
R&S
®
RTA4000
612
User Manual 1335.7898.02 ─ 08
BUS<b>:SSPI:MOSI:POLarity
<MosiPolarity>
Selects if transmitted data is high active (high = 1) or low active (low = 1) on the MOSI/
MISO line.
Suffix:
<b>
.
1..4
Parameters:
<MosiPolarity>
ACTLow | ACTHigh
*RST:
ACTH
BUS<b>:SSPI:MISO:POLarity
<MisoPolarity>
Selects whether transmitted data is high active (high = 1) or low active (low = 1) on the
MISO line.
Suffix:
<b>
.
1 | 3. Bus 2 or 4 is not available if the MISO source is used on
bus 1 or 3, respectively.
Parameters:
<MisoPolarity>
ACTLow | ACTHigh
*RST:
ACTH
BUS<b>:SSPI:BITime
<BurstIdleTime>
Within the idle time the data and clock lines are low. A new frame begins when the idle
time has expired and the clock line has been inactive during that time. If the time inter-
val between the data words is shorter than the idle time, the words are part of the
same frame.
Suffix:
<b>
.
1..4
Parameters:
<BurstIdleTime>
Range:
16e-9 to 838.832e-6
Increment: 16e-9
*RST:
100e-6
Default unit: s
BUS<b>:SSPI:BORDer
<BitOrder>
Defines if the data of the messages starts with MSB (most significant bit) or LSB (least
significant bit).
Suffix:
<b>
.
1..4
Parameters:
<BitOrder>
MSBFirst | LSBFirst
*RST:
MSBFirst
Serial bus analysis