LSM6DSV320X datasheet(33/212 Pages) STMICROELECTRONICS

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Functionality

This section describes all the operating modes and power modes of the LSM6DSV320X.

Note:

Refer to the product application note for the details regarding operating/power mode configurations, settings,

turn-on/off time and on-the-fly changes.

6.1

Operating modes

In the LSM6DSV320X, the low-g, high-g accelerometers and the gyroscope can be turned on/off independently of

each other and are allowed to have different ODRs and power modes.

6.2

Low-g accelerometer

In the LSM6DSV320X, the accelerometer can be configured in six different operating modes: power-down mode,

low-power mode (1, 2, 3), normal mode, high-performance mode, high-accuracy ODR mode, and ODR-triggered

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 7.68 kHz).

Normal mode is available for ODR values from 7.5 Hz to 1.92 kHz and it is enabled by setting the

OP_MODE_XL_[2:0] bits to 111. Normal mode cannot be used in mode 3 connection mode.

In high-performance mode and in normal 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).

High-accuracy ODR mode is available for ODR values from 15 Hz up to 7.68 kHz and it is enabled by setting the

OP_MODE_XL_[2:0] bits to 001. Refer to Section 6.5: High-accuracy ODR mode for more details.

ODR-triggered mode is available for ODR values from 15 Hz up to 7.68 kHz and it is enabled by setting the

OP_MODE_XL_[2:0] bits to 011. Refer to Section 6.6: ODR-triggered mode for more details

The embedded functions based on accelerometer data (free-fall, 6D/4D, 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.

Figure 16. Single-channel mode (XL_DualC_EN = 0)

ADC

Digital

LP Filter

OP_MODE_XL_[2:0]

ODR_XL_[3:0]

LPF1

SPI / I2C /

MIPI I3C

FIFO

Composite

Filter

Channel 1

±2/±4/±8/±16 g

LSM6DSV320X

Functionality

DS14623 - Rev 1

page 33/212

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