Datasheet

Preliminary Data Sheet
BMA400
Page 72 /
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 (0x18) STEP_STAT
DESCRIPTION: the register filed contains the status STILL(00), WALK(01) or RUN(01)
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x18) STEP_STAT
Bit
7
6
5
4
Read/Write
n/a
n/a
n/a
n/a
Reset Value
0
0
0
0
Content
reserved
Bit
3
2
1
0
Read/Write
n/a
n/a
R
R
Reset Value
0
0
0
0
Content
reserved
step_stat_field
step_stat_field
0x00
no-walk-run
no walking, no running
0x01
walking
step counter detects walking activity
0x02
running
step counter detects running activity
Register (0x19) ACC_CONFIG0
DESCRIPTION: the registers contain the accelerometer configuration.
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x19) ACC_CONFIG0
Bit
7
6
5
4
Read/Write
RW
RW
RW
n/a
Reset Value
0
0
0
0
Content
filt1_bw
osr_lp
reserved
Bit
3
2
1
0
Read/Write
n/a
n/a
RW
RW
Reset Value
0
0
0
0
Content
reserved
power_mode_conf
power_mode_conf: ‘000’ = sleep; ‘001’ = low power mode; ‘010’ = normal mode
power_mode_conf
0x00
sleep_mode
sleep mode
0x01
low_power_mode
low power mode
0x02
normal_mode
normal mode
0x03
reserved
switche sto sleep mode (0x0)
osr_lp: oversampling ratio for low power mode
Confidential and under NDA
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Confidential and under NDA
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Confidential and under NDA