LIS2HH12 datasheet(34/47 Pages) STMICROELECTRONICS

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LIS2HH12

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DocID025344 Rev 5

8.7

CTRL3 (22h)

Control register 3 (r/w). INT1 control register.

Table 28. Control register 3

Table 29. Control register 3 description

8.8

CTRL4 (23h)

Control register 4 (r/w)

Table 30. Control register 4

FIFO_EN STOP_FTH

INT1

_INACT

INT1

_IG2

INT1

_IG1

INT1

_OVR

INT1

_FTH

INT1

_DRDY

FIFO_EN

FIFO enable. Default value 0. (0: disable; 1: enable)

STOP_FTH

Enable FIFO threshold level use. Default value 0. (0: disable; 1: enable)

INT1_INACT Inactivity interrupt on INT1. Default value 0. (0: disable; 1: enable)

INT1_IG2

Interrupt generator 2 on INT1. Default value 0. (0: disable; 1: enable)

INT1_IG1

Interrupt generator 1 on INT1. Default value 0. (0: disable; 1: enable)

INT1_OVR

FIFO overrun signal on INT1.

INT1_FTH

FIFO threshold signal on INT1.

INT1_DRDY Data Ready signal on INT1.

BW2

BW1

FS1

FS0

BW_SCALE_ODR

IF_ADD_INC I2C_DISABLE

SIM

Table 31. Control register 4 description

BW [2:1]

Anti-aliasing filter bandwidth. Default value: 00

(00: 400 Hz; 01: 200 Hz; 10: 100 Hz; 11: 50 Hz)

FS [1:0]

Full-scale selection. Default value: 00

(00: ±2 g; 01: Not available; 10: ±4 g; 11: ±8 g)

BW_SCALE_ODR If '0', bandwidth is automatically selected as follows:

BW = 400 Hz when ODR = 800 Hz, 50 Hz, 10 Hz;

BW = 200 Hz when ODR = 400 Hz;

BW = 100 Hz when ODR = 200 Hz;

BW = 50 Hz when ODR = 100 Hz;

If '1', bandwidth is selected according to BW [2:1]

excluding ODR = 50 Hz, 10 Hz, BW = 400 Hz

IF_ADD_INC

serial interface (I2C or SPI). (0: disabled; 1: enabled)

I2C_DISABLE

Disable I2C interface. Default value: 0 (0: I2C enabled; 1: I2C disabled)

SIM

SPI serial interface mode selection. Default value: 0

0: 4-wire interface; 1: 3-wire interface

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