LSM6DSTX datasheet(35/175 Pages) STMICROELECTRONICS

部件名	LSM6DSTX

功能描述	iNEMO inertial module: always-on 3-axis accelerometer and 3-axis gyroscope with embedded machine learning core

PDF	175 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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35 / 175 page

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 ultralow-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.

Figure 22. Auxiliary SPI full control (a) and enabling primary interface (b)

UI/OIS

I3C/SPI/I2C

Camera Module

OIS Driver

Image

Sensor

Actuator

SPI_Aux

UI/OIS

I3C/SPI/I2C

Camera Module

OIS Driver

Image

Sensor

Actuator

SPI_Aux

(a)

(b)

LSM6DSTX

OIS

DS14039 - Rev 1

page 35/175

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