ISM330BX datasheet(35/150 Pages) STMICROELECTRONICS

номер детали	ISM330BX

подробное описание детали	6-axis IMU (inertial measurement unit) with wide bandwidth, low-noise accelerometer, embedded AI and sensor fusion for industrial applications

PDF	150 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

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Functionality

6.1

Operating modes

In the ISM330BX, the accelerometer and the gyroscope can be turned on/off independently of each other and are

allowed to have different ODRs and power modes.

The ISM330BX has three operating modes available:

•

Only accelerometer active and gyroscope in power-down

•

Only gyroscope active and accelerometer in power-down

•

Both accelerometer and gyroscope sensors active with independent ODR and power mode

The accelerometer is activated from power-down by writing ODR_XL_[3:0] in CTRL1 (10h) while the gyroscope is

activated from power-down by writing ODR_G_[3:0] in CTRL2 (11h). For combo mode, the ODRs are totally

independent.

In addition to the accelerometer mode above, a dedicated TDM output can be used for the accelerometer output.

6.2

Accelerometer power modes

In the ISM330BX, the accelerometer can be configured in three different operating modes: power-down mode,

low-power mode, and high-performance mode.

The operating mode selected depends on the value of the OP_MODE_XL_[2:0] bits in CTRL1 (10h).

If the value of the OP_MODE_XL_[2:0] bits is 000 (default), high-performance mode is valid for all ODRs (from

7.5 Hz up to 3.84 kHz).

In high-performance mode, the analog antialiasing filter is active.

Low-power mode is available for lower ODRs (1.875 Hz, 15 Hz, 30 Hz, 60 Hz, 120 Hz, 240 Hz). The three low-

power modes are enabled by setting OP_MODE_XL_[2:0] to 100 (LPM1), 101 (LPM2), 110 (LPM3).

The embedded functions based on accelerometer data (free-fall, 6D, tap/double-tap, wake-up, activity/inactivity,

stationary/motion, step counter, step detection, significant motion, tilt) and the FIFO batching functionality are

supported in all modes.

ISM330BX

Functionality

DS14588 - Rev 2

page 35/150

ISM330BX датащи(PDF) 35 Page - STMicroelectronics