Datasheet

Preliminary Data Sheet
BMA400
Page 85 /
Confidential
BST-BMA400-DS000-00 | Version 0.1 | November 2017 Bosch Sensortec
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BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
Register (0x30) WKUP_INT_CONFIG1
DESCRIPTION: the register contains configurations for wake-up interrupt
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x30) WKUP_INT_CONFIG1
Bit
7
6
5
4
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
int_wkup_thres
Bit
3
2
1
0
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
int_wkup_thres
int_wkup_thres: interrupt threshold , unsigned integer
the value defines the amount of activity which must be present to
cause wake-up.
Register (0x31) WKUP_INT_CONFIG2
DESCRIPTION: the register contains configurations for wake-up interrupt
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x31) WKUP_INT_CONFIG2
Bit
7
6
5
4
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
int_wkup_refx
Bit
3
2
1
0
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
int_wkup_refx
int_wkup_refx: reference acceleration x-axis for the wake-up interrupt
the value is a signed integer, either provided by the host (wkup_refu=0) or automatically
the wake-up interrupt calculates abs(acc_x/y/z-int_wkup_refx/y/z)>int_wkup_thres to determine
whether activity is sufficiently high on the x/y/z-axis to cause wake-up
Confidential and under NDA
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Confidential and under NDA
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Confidential and under NDA