Data Sheet
BNO055
Data sheet
Page 85
BST-BNO055-DS000-14 | Revision 1.4 | June 2016 Bosch Sensortec
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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.
4.4.14 ACC_NM_THRES 0x15
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Reset
0
0
0
0
1
0
1
0
Content
Accelerometer NO/SLOW motion threshold
DATA
bits
Description
Accelerometer
NO/SLOW motion
threshold
<7:0>
Threshold used for the Slow motion or no motion interrupt. The threshold value is dependent
on the accelerometer range selected in the ACC_Config register.
1 LSB = 3.91 mg (2-g range)
1 LSB = 7.81 mg (4-g range)
1 LSB = 15.63 mg (8-g range)
1 LSB = 31.25 mg (16-g range)
4.4.15 ACC_NM_SET 0x16
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Reset
0
0
0
1
0
1
1
Content
reserved
slo_no_mot_dur <5:0>
SMNM
DATA
bits
Description
slo_no_mot_dur
<5:0>
<6:1>
Function depends on whether the slow-motion or no-motion interrupt function has been
selected. If the slow-motion interrupt function has been enabled (SMNM = ‘0’) then
[slo_no_mot_dur<1:0>+1] consecutive slope data points must be above the slow/no-motion
threshold (ACC_NM_THRES) for the slow-/no-motion interrupt to trigger. If the no-motion
interrupt function has been enabled (SMNM = ‘1’) then slo_no_motion_dur<5:0> defines the
time for which no slope data points must exceed the slow/no-motion threshold
(ACC_NM_THRES) for the slow/no-motion interrupt to trigger. The delay time in seconds may
be calculated according with the following equation:
slo_no_mot_dur<5:4>=’b00’ [slo_no_mot_dur<3:0> + 1]
slo_no_mot_dur<5:4>=’b01’ [slo_no_mot_dur<3:0> * 4 + 20]
slo_no_mot_dur<5>=’1’ [slo_no_mot_dur<4:0> * 8 + 88]
SMNM
0
Select slow motion or no motion interrupt
0: Slow motion; 1: No motion