A MIPI RF Front-End Control Interface (RFFE) device configuration and control phase
information can be deleted from the nRF9160 memory using this command.
Syntax:
%XMIPIRFFEDEV=<dev_id>
The following command deletes the device whose <dev_id>=1 and all
related phase controls that have been given using the %XMIPIRFFECTRL
command:
AT%XMIPIRFFEDEV=1
OK
CAUTION:
The combined load of
Printed Circuit Board (PCB) routing, the input
load of the MIPI RFFE-controlled device, and any parasitic load from application shall not
exceed 15 pF at
SCLK or
SDATA pins. This load
translates roughly to narrow transmission line length of less than 10 cm at the application
board but it is dependent on the actual PCB design. A load higher than 15 pF at
SCLK or
SDATA pin increases the risk of unwanted
behavior of the nRF9160
System in Package (SiP) itself and of MIPI RFFE
control.