Register mapping

LPS331AP

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Doc ID 022112 Rev 7

6

Register mapping

Table 14 provides a list of the 8-bit registers embedded in the device and the related

addresses.

.

Registers marked as Reserved must not be changed. The writing to those registers may

cause permanent damages to the device.

The content of the registers that are loaded at boot should not be changed. They contain the

factory calibration values. Their content is automatically restored when the device is

powered-up.

Table 14.

Registers address map

Name

Type

Register Address

Default

Function and

comment

Hex

Binary

Reserved (Do not modify)

00-07

0D - 0E

Reserved

REF_P_XL

R/W

08

0001000

00000000

REF_P_L

R/W

09

0001001

00000000

REF_P_H

R/W

0A

0001010

00000000

WHO_AM_I

R

0F

0001111

10111011

Dummy register

RES_CONF

R/W

10

0010000

011111010

Reserved (Do not modify)

11-1F

Reserved

CTRL_REG1

R/W

20

010 0000

00000000

CTRL_REG2

R/W

21

010 0001

00000000

CTRL_REG3

R/W

22

010 0010

00000000

INT_CFG_REG

R/W

23

0100011

00000000

INT_SOURCE_REG

R

24

0100100

00000000

THS_P_LOW_REG

R/W

25

0100101

0000000

THS_P_HIGH_REG

R/W

26

0100110

0000000

STATUS_REG

R

27

010 0111

00000000

PRESS_POUT_XL_REH

R

28

010 1000

output

PRESS_OUT_L

R

29

010 1001

output

PRESS_OUT_H

R

2A

010 1010

output

TEMP_OUT_L

R

2B

010 1011

output

TEMP_OUT_H

R

2C

010 1100

output

Reserved (Do not modify)

2D-2F

Reserved

AMP_CTRL

R/W

30

011 0000

Partially reserved