LSM6DSOX datasheet(33/199 Pages) STMICROELECTRONICS

33 / 199 page

6.5

OIS

This paragraph describes OIS functionality. There is a dedicated gyroscope and accelerometer DSP for OIS.

Other features can be configured:

•

Self-test on OIS side

•

DEN on OIS side

6.5.1

Enabling OIS functionality and connection schemes

There are three different ways in order to enable and configure OIS functionality:

•

Auxiliary SPI full control: Enabling and configuration done from Auxiliary SPI

•

Enabling primary interface: Enable from primary interface, configuration from Auxiliary SPI

•

Primary interface full control: Enabling and configuration done from primary interface

The configurations that allow selecting these three different options are done using the OIS_CTRL_FROM_UI bit

in FUNC_CFG_ACCESS (01h) and the OIS_ON_EN bit in CTRL7_G (16h) as described in the following table.

Table 19. OIS configurations

OIS_CTRL_

FROM_UI

OIS_ON_EN

OIS configuration option

Auxiliary SPI full control

Enabling primary interface

Primary interface full control

6.5.1.1

Auxiliary SPI full control

This is the default condition of the device. The camera module is completely independent from the application

processor as shown in Figure 22.

The Auxiliary SPI can configure OIS functionality through SPI2_INT_OIS (6Fh), SPI2_CTRL1_OIS (70h),

SPI2_CTRL2_OIS (71h), SPI2_CTRL3_OIS (72h).

Reading from the Auxiliary SPI is enabled only when the OIS_EN_SPI2 bit in the SPI2_CTRL1_OIS (70h) register

is set to '1'. This bit also turns on the gyroscope OIS chain.

The Primary Interface can access the OIS control registers (UI_INT_OIS (6Fh), UI_CTRL1_OIS (70h),

UI_CTRL2_OIS (71h), UI_CTRL3_OIS (72h)) in read mode.

Note:

If accelerometer Ultra-Low-Power Mode is intended to be used on the Primary chain, it is recommended to use

the Primary IF enabling option instead, in order to make sure that the device is set in Power-Down (from ULP

mode) before enabling the OIS chain.

LSM6DSOX

OIS

DS12814 - Rev 3

page 33/199

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