BMA253
Data sheet
Page 92
Register 0x3A (OFC_OFFSET_Z)
Contains the offset compensation value for z-axis acceleration readout data.
Name
Bit
0x3A
7
OFC_OFFSET_Z
6
5
4
Read/Write R/W
R/W
0
R/W
0
R/W
0
Reset
0
Value
Content
offset_z<7:4>
3
Bit
2
1
0
Read/Write R/W
R/W
0
R/W
0
R/W
0
Reset
0
Value
Content
offset_z<3:0>
offset_ z<7:0>:
offset value, which is subtracted from the internal filtered and unfiltered z-
axis acceleration data; the offset value is represented with two’s complement
notation, with a mapping of +127 +0.992g, 0 0 g, and -128 -1 g; the
scaling is independent of the selected g-range; the content of the
offset_z<7:0> may be written to the NVM; it is automatically restored from
the NVM after each power-on or softreset; offset_z<7:0> may be written
directly by the user; it is generated automatically after triggering the fast
offset compensation procedure for the z-axis
Register 0x3B (TRIM_GP0)
Contains general purpose data register with NVM back-up.
Name
Bit
0x3B
7
TRIM_GP0
6
5
4
Read/Write R/W
R/W
0
R/W
0
R/W
0
Reset
0
Value
Content
GP0<7:4>
3
Bit
2
1
0
Read/Write R/W
R/W
0
R/W
0
R/W
0
Reset
0
Value
Content
GP0<3:0>
GP0<7:0>:
general purpose NVM image register not linked to any sensor-specific
functionality; register may be written to NVM and is restored after each
power-up or softreset
BST-BMA253-DS000-01 | Revision 1.0 | August 2015
Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
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