LSM303DLHCTR Datasheet, PDF(30/42 Page) STMicroelectronics – Ultra compact high performance e-compass 3D accelerometer and 3D magnetometer module

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LSM303DLHCTR Datasheet, PDF (30/42 Pages) STMicroelectronics – Ultra compact high performance e-compass 3D accelerometer and 3D magnetometer module

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LSM303DLHC

Table 41. INT1_CFG_A description (continued)

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.)

Content of this register is loaded at boot. Write operation at this address is possible only

after system boot.

Table 42. Interrupt mode

AOI

Interrupt mode

0 OR combination of interrupt events

1 6-direction movement recognition

0 AND combination of interrupt events

1 6-direction position recognition

7.1.15

Difference between AOI-6D = â01â and AOI-6D = â11â.

AOI-6D = â01â 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 = â11â is direction recognition. An interrupt is generated when orientation is inside a

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

INT1_SRC_A (31h)

Table 43. INT1_SRC_A register

0(1)

1. This bit must be set to â0â for correct working of the device.

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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)

Doc ID 018771 Rev 1

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