LSM6DST datasheet(54/180 Pages) STMICROELECTRONICS

部件名	LSM6DST

功能描述	iNEMO inertial module: always-on 3D accelerometer and 3D gyroscope

PDF	180 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

54 / 180 page

Functionality

LSM6DST

54/180

DocID033525 Rev 2

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 21.

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.

Figure 21. Auxiliary SPI full control (a) and enabling primary interface (b)

LSM6DST 数据表(PDF) 54 Page - STMicroelectronics