BMA255 datasheet(77/119 Pages) ETC2

77 / 119 page

BMA255

Data sheet

Page 77

BST-BMA255-DS004-04 | Revision 1.1 | December 2013

Bosch Sensortec

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.

Contains the definition of the number of samples to be evaluated for the slope interrupt (any-

motion detection) and the slow/no-motion interrupt trigger delay.

Name

0x27

INT_5

Bit

Read/Write

R/W

Reset

Value

Content

slo_no_mot_dur<5:2>

Bit

Read/Write

R/W

Reset

Value

Content

slo_no_mot_dur<1:0>

slope_dur<1:0>

slo_no_mot_dur<5:0>:

Function depends on whether the slow-motion or no-motion

interrupt function has been selected. If the slow-motion interrupt function has

been enabled (slo_no_mot_sel = ‘0’) then [slo_no_mot_dur<1:0>+1]

consecutive slope data points must be above the slow/no-motion threshold

(slo_no_mot_th) for the slow-/no-motion interrupt to trigger. If the no-motion

interrupt function has been enabled (slo_no_mot_sel = ‘1’) then

slo_no_motion_dur<5:0> defines the time for which no slope data points

must exceed the slow/no-motion threshold (slo_no_mot_th) 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]

slope_dur<1:0>:

slope interrupt triggers if [slope_dur<1:0>+1] consecutive slope data points

are above the slope interrupt threshold slope_th<7:0>

BMA255 Datasheet(PDF) 77 Page - List of Unclassifed Manufacturers

BMA255 Datasheet(HTML) 77 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL