Rohde & Schwarz R&S ZNA Series - Page 1218

Command reference
R&S
®
ZNA
1218User Manual 1178.6462.02 ─ 29
CONTrol<Ch>:RFFE<Bus>:COMMand:DATA <Command>
Defines an RFFE command for channel <Ch> and RFFE bus interface <Bus>, which
can be executed using CONTrol<Ch>:RFFE<Bus>:COMMand:SEND (write-only) or
CONTrol<Ch>:RFFE<Bus>:COMMand:SEND? <BytesToRead> (with read-back).
For details and background information see the "MIPI Alliance Specification for RF
Front-End Control Interface".
Suffix:
<Ch>
.
Channel number
<Bus> RFFE bus interface number
Parameters:
<Command> 3, 5, ..., 35, or 37 hexadecimal digits (0-F), defining the com-
mand to be executed:
- digit 1 is the slave address,
- digits 2 and 3 specify the command number and
- the remaining digits represent the data part with up to 17 bytes
(0, 2, ..., 32, or 34 hex digits).
Manual operation: See "RFFE Command" on page 660
CONTrol<Ch>:RFFE<Bus>:COMMand:SEND
CONTrol<Ch>:RFFE<Bus>:COMMand:SEND? <BytesToRead>
Sends the RFFE command for channel <Ch> and RFFE bus interface <Bus>.
In its "set" form, it is a pure write command. In its query form, the command attempts to
read <BytesToRead> bytes back: the result is returned in the form
<ParityBit>,<ReadError>,'<result>', where
●
<ReadError>==1 indicates a parity mismatch
●
<result> consits of 2·<BytesToRead> hexadecimal digits.
The command has to be defined previously using CONTrol<Ch>:RFFE<Bus>:
COMMand:DATA. On a R&S ZN-B15/Z15 var. 03, before the command is executed the
related shunt resistance is set to its minimum possible value.
For details and background information see the "MIPI Alliance Specification for RF
Front-End Control Interface".
Suffix:
<Ch>
.
Chanel number
<Bus> RFFE bus interface
Query parameters:
<BytesToRead> The number of bytes to be read back from the RFFE interface.
*RST: 0 to 16
Manual operation: See "SEND" on page 661
SCPI command reference