LIS2DUX12 datasheet(45/102 Pages) STMICROELECTRONICS

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8.14

WAKE_UP_DUR (1Dh)

R/W

Table 48. WAKE_UP_DUR register

FF_DUR5

WAKE_

DUR1

WAKE_

DUR0

ST_SIGN_Z

SLEEP_

DUR3

SLEEP_

DUR2

SLEEP_

DUR1

SLEEP_

DUR0

Table 49. WAKE_UP_DUR register description

FF_DUR5

Free-fall duration. Default value: 0

In conjunction with FF_DUR[4:0] in FREE_FALL (1Eh).

1 LSB: 1 ODR_time

WAKE_DUR[1:0]

Wake-up duration. Default value: 00

When the WU_DUR_EXTENDED bit in register WAKE_UP_DUR_EXT (0Eh) is set to 0, 1LSB of

WAKE_DUR = 1 ODR_time, otherwise the following durations are selectable:

(00: 3 ODR_time;

01: 7 ODR_time;

10: 11 ODR_time;

11: 15 ODR_time)

ST_SIGN_Z

Configures the sign of the self-test for the Z-axis. Default value: 0

SLEEP_DUR[3:0]

Duration to go in sleep mode. Default value: 0000 which corresponds to 16 ODR_time

1 LSB: 512 ODR_time

8.15

FREE_FALL (1Eh)

R/W

Table 50. FREE_FALL register

FF_DUR4

FF_DUR3

FF_DUR2

FF_DUR1

FF_DUR0

FF_THS2

FF_THS1

FF_THS0

Table 51. FREE_FALL register description

FF_DUR[4:0]

Free-fall duration. Default value: 0

In conjunction with FF_DUR5 in WAKE_UP_DUR (1Dh)

1 LSB: 1 ODR_time

FF_THS[2:0]

Free-fall threshold

(000: 156 mg;

001: 219 mg;

010: 250 mg;

011: 312 mg;

100: 344 mg;

101: 406 mg;

110: 469 mg;

111: 500 mg)

LIS2DUX12

WAKE_UP_DUR (1Dh)

DS14071 - Rev 2

page 45/102

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