Register description

LPS001WP

20/30

Doc ID 18171 Rev 1

8

Register description

The device contains a set of registers which are used to control its behavior and to retrieve

pressure and temperature data. The registers address, made up of 7 bits, is used to identify

them and to read/write the data through the serial interface.

8.1

WHO_AM_I (0Fh)

Device identification register.

This read only register contains the device identifier which, for LPS001WP, is set to BAh.

8.2

CTRL_REG1 (20h)

PD bit allows to turn on the device. The device is in power-down mode when PD = ‘0’

ODR1 - ODR0 bits allow to change the output data rates of pressure and temperature

samples. The default value is “00” which corresponds to a data rate of 7 Hz for pressure

Table 15.

WHO_AM_I (0Fh) register

1

011

10

10

Table 16.

CTRL_REG1 (20h) register

X

PD

ODR1

ODR0

DIFF_EN

BDU

BLE

SIM

Table 17.

CTRL_REG1 (20h) register description

Reserved

Low power functionality. Default value: 0

(0: normal mode; 1: low-power activated)

PD

Power down control. Default value: 0

(0: power-down mode; 1: active mode)

ODR1

ODR0

Output data rate selection. Default value: 00

(see

Table 18)

DIFF_EN

Interrupt circuit enable. Default value: 0

(0: interrupt generation disabled; 1: interrupt circuit enabled)

BDU

Block data update. Default value: 0

(0: continuous update; 1: output registers not updated until MSB and LSB reading)

BLE

Big/little endian selection. Default value: 0

(0: little endian; 1: big endian)

SIM

SPI serial interface mode selection. Default value: 0

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

Obsolete

Product(s)

- Obsolete

Product(s)