Datasheet

Preliminary Data Sheet
BMA400
Page 99 /
Confidential
BST-BMA400-DS000-00 | Version 0.1 | November 2017 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
gen2_act_refu: reference update mode for evaluation
gen2_act_refu
0x00
manual
manual update (reference registers are updated by external MCU)
0x01
onetime
one time automated update by the selected data source
0x02
everytime
every time automated update by the selected data source
0x03
everytime_lp
every time automated update by acc_filt_lp
gen2_data_src: data source selection for interrupts evaluation
gen2_data_src
0x00
filt1
data source is acc_filt1
0x01
filt2
data source is acc_filt2
gen2_act_x_en: x-axis channel control for interrupt evaluation: 0 - not active; 1 - active
gen2_act_y_en: y-axis channel control for interrupt evaluation: 0 - not active; 1 - active
gen2_act_z_en: z-axis channel control for interrupt evaluation: 0 - not active; 1 - active
Register (0x4B) GEN2INT_CONFIG1
DESCRIPTION: the registers contain configurations for generic interrupt 1 evaluation
RESET: 0x00
DEFINITION (Go to register map):
Name
Register (0x4B) GEN2INT_CONFIG1
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
RW
RW
Reset Value
0
0
0
0
Content
reserved
gen2_criterion_s
el
gen2_comb_sel
gen2_comb_sel: Select logical combination for creating the interrupt signal from the individual axes
that have been enabled
gen2_comb_sel
0x00
OR
OR combination of x/y/z axis evaluation results
0x01
AND
AND combination of x/y/z axis evaluation results
gen2_criterion_sel: Select criterion for threshold comparison
gen2_criterion_sel
0x00
inactivity
acceleration below threshold: inactivity detection
0x01
activity
acceleration above threshold: inactivity detection
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