LIS2DS12 datasheet(44/68 Pages) STMICROELECTRONICS

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LIS2DS12

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DocID027753 Rev 4

8.10

CTRL2 (21h)

Control register 2 (r/w)

Table 42. Control register 2

Table 43. Control register 2 description

BOOT

SOFT_

RESET

0(1)

1. This bit must be set to ‘0’ for the correct operation of the device.

FUNC_CFG_

EN(2)(3)(4)

2. When this bit is enabled, only advanced configuration registers can be written. For proper functionality of

the device, all the other registers must not be modified.

3. Details of advanced configuration registers are available in Section 9: Advanced configuration register

mapping and Section 10: Advanced configuration registers description.

4. To disable the advanced configuration, bit FUNC_CFG_EN in CTRL2 (3Fh) must be set to '0'. Refer to

Section 10.8: CTRL2 (3Fh).

FDS_

SLOPE

IF_ADD_

INC

I2C_

DISABLE

SIM

BOOT

Forces the reboot of the flash content in the trimming and configuration registers.

Default value: 0 (0: disable; 1: Reboot enable)

SOFT_RESET Soft reset acts as reset for all control registers, then goes to 0.

Default value: 0 (0: disabled; 1: enabled)

FUNC_CFG_

Access to pedometer/sensor hub advanced configuration registers from address

2Bh to 3Fh.

Default value: 0

(0: disable the access to pedometer/sensor hub advanced configuration registers;

1: enable the access to pedometer/sensor hub advanced configuration registers)

FDS_SLOPE

High-pass filter data selection on output register and FIFO. Default value: 0

(0: internal filter bypassed; 1: internal filter enabled on output register and FIFO)

IF_ADD_INC

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

I2C_DISABLE

Disable I2C communication protocol. Default value: 0

(0: SPI and I2C interfaces enabled; 1: I2C mode disabled)

SIM

SPI serial interface mode selection. Default value: 0

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

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