LSM6DSTX datasheet(36/175 Pages) STMICROELECTRONICS

36 / 175 page

6.5.1.2

Enabling the primary interface

This option allows the application processor to enable/disable the OIS functionality from the primary interface. An

example of this option is shown in Figure 22.

In order to enable/disable the OIS chain from the primary interface, the OIS_ON_EN bit in the CTRL7_G (16h)

Then, enabling OIS functionalities and reading from the Auxiliary SPI can be done from the primary interface by

setting the OIS_ON bit in CTRL7_G (16h) to 1. This bit also turns on the gyroscope OIS chain.

The configuration of the OIS functionalities must be implemented from the auxiliary SPI through the

SPI2_INT_OIS (6Fh), SPI2_CTRL1_OIS (70h), SPI2_CTRL2_OIS (71h), and SPI2_CTRL3_OIS (72h) registers.

The camera module can verify that the AP has enabled the LSM6DSTX OIS chain by reading the

SPI2_WHO_AM_I (0Fh) register. The bit OIS_EN_SPI2 is kept under reset.

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 the accelerometer ultralow-power mode is active when activation of the OIS is required, the device must be set

in power-down mode before enabling the OIS chain.

Note:

The OIS_ON_EN bit is reset from the software reset procedure.

LSM6DSTX

OIS

DS14039 - Rev 1

page 36/175

LSM6DSTX 数据表(PDF) 36 Page - STMicroelectronics