LIS33DE datasheet(27/31 Pages) STMICROELECTRONICS

27 / 31 page

LIS33DE

Doc ID 15596 Rev 1

27/31

7.9

FF_WU_SRC (31h)

Free-fall and wake-up source register. Read only register.

Reading at this address clears FF_WU_SRC register and the FF, WU interrupt and allows

the refreshment of data in the FF_WU_SRC register if the latched option is chosen.

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 29.

FF_WU_CFG (30h) register description (continued)

Table 30.

FF_WU_SRC (31h) register

Table 31.

FF_WU_SRC (31h) register 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: ZH event has occurred)

Z low. Default value: 0

(0: no interrupt; 1: ZL event has occurred)

Y high. Default value: 0

(0: no interrupt, 1: YH event has occurred)

Y Low. Default value: 0

(0: no interrupt, 1: YL event has occurred)

X high. Default value: 0

(0: no interrupt, 1: XH event has occurred)

X low. Default value: 0

(0: no interrupt, 1: XL event has occurred)

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