Information

BMA280
Data sheet
Page 85
BST-BMA280-DS000-11 | Revision 1.8 | August 2014 Bosch Sensortec
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third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
Register 0x32 (PMU_SELF_TEST)
Contains the settings for the sensor self-test configuration and trigger.
Name
0x32
PMU_SELF_TEST
Bit
7
6
5
4
Read/Write
R/W
R/W
R/W
R/W
Reset
Value
0
0
0
0
Content
reserved
Bit
3
2
1
0
Read/Write
R/W
R/W
R/W
R/W
Reset
Value
0
0
0
0
Content
reserved_0
self_test_sign
self_test-axis<1:0>
reserved: write ‘0x0’
self_test_sign: select sign of self-test excitation as ´1´  positive, or ´0´  negative
self_test_axis: select axis to be self-tested: ´00b´  self-test disabled, ´01b´  x-axis, ´10b´
 y-axis, or ´11b´  z-axis; when a self-test is performed, only the
acceleration data readout value of the selected axis is valid; after the self-
test has been enabled a delay of a least 50 ms is necessary for the read-out
value to settle