LSM303DLHC datasheet(30/42 Pages) STMICROELECTRONICS

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LSM303DLHC

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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 unknown zone to 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.

7.1.15

INT1_SRC_A (31h)

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 42.

Interrupt mode

AOI

Interrupt mode

OR combination of interrupt events

6-direction movement recognition

AND combination of interrupt events

6-direction position recognition

Table 41.

INT1_CFG_A description (continued)

Table 43.

INT1_SRC_A register

0(1)

This bit must be set to ‘0’ for correct working of the device.

Table 44.

INT1_SRC_A description

Interrupt active. Default value: 0

(0: no interrupt has been generated, 1: one or more interrupts have been generated)

Z high. Default value: 0

(0: no interrupt, 1: Z high event has occurred)

Z low. Default value: 0

(0: no interrupt, 1: Z low event has occurred)

Y high. Default value: 0

(0: no interrupt, 1: Y high event has occurred)

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