H3LIS331DL Datasheet, PDF (23/38 Pages) STMicroelectronics – MEMS motion sensor: low-power high-g 3-axis digital accelerometer

H3LIS331DL
6
Register mapping
Register mapping
Table 15 provides a listing of the 8-bit registers embedded in the device and the related
addresses.
Table 15. Register address map
Name
Type
Register address
Hex Binary
Default
Comment
Reserved (do not modify)
WHO_AM_I
Reserved (do not modify)
00 - 0E
Reserved
r
0F 000 1111 00110010 Dummy register
10 - 1F
Reserved
CTRL_REG1
CTRL_REG2
rw
20 010 0000 00000111
rw
21 010 0001 00000000
CTRL_REG3
CTRL_REG4
rw
22 010 0010 00000000
rw
23 010 0011 00000000
CTRL_REG5
HP_FILTER_RESET
rw
24 010 0100 00000000
r
25 010 0101
Dummy register
REFERENCE
STATUS_REG
OUT_X_L
rw
26 010 0110 00000000
r
27 010 0111 00000000
r
28 010 1000 Output
OUT_X_H
OUT_Y_L
r
29 010 1001 Output
r
2A 010 1010 Output
OUT_Y_H
OUT_Z_L
r
2B 010 1011 Output
r
2C 010 1100 Output
OUT_Z_H
Reserved (do not modify)
r
2D 010 1101 Output
2E - 2F
Reserved
INT1_CFG
INT1_SRC
INT1_THS
rw
30 011 0000 00000000
r
31 011 0001 00000000
rw
32 011 0010 00000000
INT1_DURATION
INT2_CFG
rw
33 011 0011 00000000
rw
34 011 0100 00000000
INT2_SRC
INT2_THS
r
35 011 0101 00000000
rw
36 011 0110 00000000
INT2_DURATION
Reserved (do not modify)
rw
37 011 0111 00000000
38 - 3F
Reserved
Registers marked as Reserved must not be changed as they contain the factory calibration
values. Their content is automatically restored when the device is powered up. Writing to
those registers may change calibration data and thus lead to improper functioning of the
device.
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