LPS331AP Datasheet, PDF (16/36 Pages) STMicroelectronics – MEMS pressure sensor: 260-1260 mbar absolute digital output barometer

Register mapping
6
Register mapping
LPS331AP
Table 14 provides a list of the 8-bit registers embedded in the device and the related
addresses.
.
Table 14. Registers address map
Name
Type
Register Address
Hex
Binary
Default
Function and
comment
Reserved (Do not modify)
REF_P_XL
REF_P_L
REF_P_H
WHO_AM_I
RES_CONF
Reserved (Do not modify)
CTRL_REG1
CTRL_REG2
CTRL_REG3
INT_CFG_REG
INT_SOURCE_REG
THS_P_LOW_REG
THS_P_HIGH_REG
STATUS_REG
PRESS_POUT_XL_REH
PRESS_OUT_L
PRESS_OUT_H
TEMP_OUT_L
TEMP_OUT_H
Reserved (Do not modify)
AMP_CTRL
00-07
0D - 0E
Reserved
R/W
08
0001000 00000000
R/W
09
0001001 00000000
R/W
0A
0001010 00000000
R
0F
0001111 10111011 Dummy register
R/W
10
0010000 011111010
11-1F
Reserved
R/W
20 010 0000 00000000
R/W
21 010 0001 00000000
R/W
22 010 0010 00000000
R/W
23
0100011 00000000
R
24
0100100 00000000
R/W
25
0100101 0000000
R/W
26
0100110 0000000
R
27 010 0111 00000000
R
28 010 1000 output
R
29 010 1001 output
R
2A 010 1010 output
R
2B 010 1011 output
R
2C 010 1100 output
2D-2F
Reserved
R/W
30 011 0000
Partially reserved
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.
16/36
Doc ID 022112 Rev 7