LSM6DSM Datasheet, PDF (48/113 Pages) STMicroelectronics – always-on 3D accelerometer and 3D gyroscope

Auxiliary SPI configurations
8
Auxiliary SPI configurations
LSM6DSM
When the LSM6DSM is configured in Mode3, the auxiliary SPI can be connected to a
camera module for OIS/EIS support.
The gyroscope filtering chain is illustrated in the following figure.
Figure 21. Gyroscope chain
$'&
+3)


+3B(1B*
/3)
2'5B*


+3B(1B2,6
/3)
)7<3(B > @ B2,6
63,,^&
),)2
63,B$X[
Note:
HP_EN_OIS is active to select HPF on the auxiliary SPI chain only if HPF is not already
used in the primary interface.
The auxiliary interface needs to be enabled in CTRL_OIS (70h).
Gyroscope output values are in registers 22h to 27h with selected full scale (FS[1:0]_G_OIS
bit in CTRL_OIS (70h)) and ODR at 6.66 kHz.
LPF1 configuration depends on the setting of the FTYPE_[1;0] _OIS bit in register
CTRL2_OIS (71h).
In this interface, the SPI can write only to the dedicated registers (CTRL_OIS (70h),
CTRL2_OIS (71h)).
48/113
DocID028165 Rev 2