LSM303D datasheet(42/52 Pages) STMICROELECTRONICS

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LSM303D

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DocID023312 Rev 2

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 generated when orientation moves

from an unknown zone to a known zone. The interrupt signal stays for a duration ODR.

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

known zone. The interrupt signal stays until orientation is inside the zone.

8.31

IG_SRC1 (31h)

Inertial interrupt generator 1 status register.

Table 63. IG_CFG1 register description

AOI

And/Or combination of interrupt events. Default value: 0.

Refer to Table 64

6-direction detection function enabled. Default value: 0.

Refer to Table 64

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/

XDOWNE

Enable interrupt generation on X low event or on direction recognition. Default

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

Table 64. Interrupt mode

AOI

Interrupt mode

OR combination of interrupt events

6-direction movement recognition

AND combination of interrupt events

6-direction position recognition

Table 65. IG_SRC1 register

YHYL

XHXL

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