Information

BMA280
Data sheet
Page 80
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 0x2B (INT_9)
Contains the definition of the number of samples processed by the single / double-tap interrupt
engine after wake-up in low-power mode. It also defines the threshold definition for the single
and double tap interrupts.
Name
0x2B
INT_9
Bit
7
6
5
4
Read/Write
R/W
R/W
R/W
R/W
Reset
Value
0
0
0
0
Content
tap_samp<1:0>
reserved
tap_th<4>
Bit
3
2
1
0
Read/Write
R/W
R/W
R/W
R/W
Reset
Value
1
0
1
0
Content
tap_th<3:0>
tap_samp<1:0>: selects the number of samples that are processed after wake-up in the low-
power mode according to ´00b´  2 samples, ´01b´  4 samples, ´10b´  8
samples, and ´11b´  16 samples
reserved: write ‘0’
tap_th<4:0>: threshold of the single/double-tap interrupt corresponding to an acceleration
difference of tap_th<4:0> · 62.5mg (2g-range), tap_th<4:0> · 125mg (4g-
range), tap_th<4:0> · 250mg (8g-range), and tap_th<4:0> · 500mg (16g-
range).