LIS2DH datasheet(39/50 Pages) STMICROELECTRONICS

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LIS2DH

Registers Description

Doc ID 022516 Rev 1

39/49

7.19

INT1_CFG (30h)

Content of this register is loaded at boot.

Write operation at this address is possible only after system boot.

Difference between AOI-6D = ‘01’ and AOI-6D = ‘11’.

AOI-6D = ‘01’ is movement recognition. An interrupt is generate when orientation move from

unknown zone to known zone. The interrupt signal stay for a duration ODR.

AOI-6D = ‘11’ is direction recognition. An interrupt is generate when orientation is inside a

known zone. The interrupt signal stay untill orientation is inside the zone.

Table 49.

INT1_CFG register

AOI

ZHIE/

ZUPE

ZLIE/

ZDOWNE

YHIE/

YUPE

YLIE/

YDOWNE

XHIE/

XUPE

XLIE/

XDOWNE

Table 50.

INT1_CFG description

AOI

And/Or combination of Interrupt events. Default value: 0. Refer to Table 51, "Interrupt

mode"

6 direction detection function enabled. Default value: 0. Refer to Table 51, "Interrupt

mode"

ZHIE/

ZUPE

Enable interrupt generation on Z high event or on Direction recognition. Default

value: 0 (0: disable interrupt request;1: enable interrupt request)

ZLIE/

ZDOWNE

Enable interrupt generation on Z low event or on Direction recognition. Default value:

0 (0: disable interrupt request;1: enable interrupt request)

YHIE/

YUPE

Enable interrupt generation on Y high event or on Direction recognition. Default

value: 0 (0: disable interrupt request; 1: enable interrupt request.)

YLIE/

YDOWNE

Enable interrupt generation on Y low event or on Direction recognition. Default value:

0 (0: disable interrupt request; 1: enable interrupt request.)

XHIE/

XUPE

Enable interrupt generation on X high event or on Direction recognition. Default

value: 0 (0: disable interrupt request; 1: enable interrupt request.)

XLIE/XDOWN

Enable interrupt generation on X low event or on Direction recognition. Default value:

0 (0: disable interrupt request; 1: enable interrupt request.)

Table 51.

Interrupt mode

AOI

Interrupt mode

OR combination of interrupt events

6 direction movement recognition

AND combination of interrupt events

6 direction position recognition

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