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LIS2DH12 Datasheet(PDF) 44 Page - STMicroelectronics

Part # LIS2DH12
Description  Free-fall detection
PDF  53 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LIS2DH12 Datasheet(HTML) 44 Page - STMicroelectronics

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Register description
LIS2DH12
44/53
DocID025056 Rev 6
8.23
INT2_CFG (34h)
The content of this register is loaded at boot.
A write operation to this address is possible only after system boot.
The difference between AOI-6D = ‘01’ and AOI-6D = ‘11’.
AOI-6D = ‘01’ is movement recognition. An interrupt is generated when the orientation
moves from an unknown zone to a known zone. The interrupt signal remains for a duration
ODR.
AOI-6D = ‘11’ is direction recognition. An interrupt is generated when the orientation is
inside a known zone. The interrupt signal remains while the orientation is inside the zone.
Table 62. INT2_CFG register
AOI
6D
ZHIE
ZLIE
YHIE
YLIE
XHIE
XLIE
Table 63. INT2_CFG description
AOI
AND/OR combination of interrupt events. Default value: 0
(see Table 64)
6D
6-direction detection function enabled. Default value: 0. Refer to Table 64.
ZHIE
Enable interrupt generation on Z high event. Default value: 0
(0: disable interrupt request;
1: enable interrupt request on measured accel. value higher than preset threshold)
ZLIE
Enable interrupt generation on Z low event. Default value: 0
(0: disable interrupt request;
1: enable interrupt request on measured accel. value lower than preset threshold)
YHIE
Enable interrupt generation on Y high event. Default value: 0
(0: disable interrupt request;
1: enable interrupt request on measured accel. value higher than preset threshold)
YLIE
Enable interrupt generation on Y low event. Default value: 0
(0: disable interrupt request;
1: enable interrupt request on measured accel. value lower than preset threshold)
XHIE
Enable interrupt generation on X high event. Default value: 0
(0: disable interrupt request;
1: enable interrupt request on measured accel. value higher than preset threshold)
XLIE
Enable interrupt generation on X low event. Default value: 0
(0: disable interrupt request;
1: enable interrupt request on measured accel. value lower than preset threshold)
Table 64. Interrupt mode
AOI
6D
Interrupt mode
0
0
OR combination of interrupt events
0
1
6-direction movement recognition
1
0
AND combination of interrupt events
1
1
6-direction position recognition



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