Datasheet

Preliminary Data Sheet
BMA400
Page 83 /
Confidential
BST-BMA400-DS000-00 | Version 0.1 | November 2017 Bosch Sensortec
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to 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 (0x2C) AUTOWAKEUP_0
DESCRIPTION: the register contains configurations for auto-wake-up condition.
The auto-wake-up condition is evaluated as soon as the sensor changes into low power mode
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x2C) AUTOWAKEUP_0
Bit
7
6
5
4
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
wakeup_timeout_thres_11_4
Bit
3
2
1
0
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
wakeup_timeout_thres_11_4
wakeup_timeout_thres_11_4: msb of wake-up timeout threshold
timeout= wakeup_timeout_thres_3_0 + 16*wakeup_timeout_thres_11_4
Register (0x2D) AUTOWAKEUP_1
DESCRIPTION: the register contains configurations for auto-wake-up condition.
The auto-wake-up condition is evaluated as soon as the sensor changes into low power mode
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x2D) AUTOWAKEUP_1
Bit
7
6
5
4
Read/Write
RW
RW
RW
RW
Reset Value
0
0
0
0
Content
wakeup_timeout_thres_3_0
Bit
3
2
1
0
Read/Write
n/a
RW
RW
n/a
Reset Value
0
0
0
0
Content
reserved
wkup_timeout
wkup_int
reserved
wkup_int: low power wake-up interrupt
wkup_int
0x00
nowakeup
disable wake-up interrupt
0x01
en-wakeup
enable wake-up interrupt
wkup_timeout: wake-up timeout as source for auto-wake-up condition
wkup_timeout
0x00
no-timeout
timer not used for wake-up
0x01
enab-timeout
timer triggers wake-up
Confidential and under NDA
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Confidential and under NDA
Seeed Studio
Confidential and under NDA