LIS2DUX12 datasheet(59/102 Pages) STMICROELECTRONICS

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8.48

TAP_CFG2 (71h)

R/W

Table 118. TAP_CFG2 register

POST_STILL

_T5

POST_STILL

_T4

WAIT_T5

WAIT_T4

WAIT_T3

WAIT_T2

WAIT_T1

WAIT_T0

Table 119. TAP_CFG2 register description

POST_STILL_T[5:4]

Number of samples during stationary condition after shock and wait phases. These bits are used

together with POST_STILL_T[3:0] in register TAP_CFG1 (70h). 1 LSB = 4 samples (maximum 252

samples).

WAIT_T[5:0]

These bits program the number of samples to wait for the shock to finish.

1 LSB = 2 samples (maximum 126 samples).

8.49

TAP_CFG3 (72h)

R/W

Table 120. TAP_CFG3 register

POST_STILL

_THS3

POST_STILL

_THS2

POST_STILL

_THS1

POST_STILL

_THS0

LATENCY_T3 LATENCY_T2 LATENCY_T1 LATENCY_T0

Table 121. TAP_CFG3 register description

POST_STILL_THS[3:0](1)

Threshold for stationary condition after shock and wait phases. 1 LSB = 62.5 mg (maximum

937.5 mg)

LATENCY_T[3:0]

Maximum number of samples between consecutive taps event to detect double or triple tap. The

default value of these bits is 0000b which corresponds to 16 samples. If the LATENCY_T[3:0] bits

are set to a different value, 1LSB corresponds to 32 samples (maximum 480 samples).

1. The POST_STILL_THS[3:0] field must be set to a value greater than 0.

8.50

TAP_CFG4 (73h)

R/W

Table 122. TAP_CFG4 register

WAIT_END_

LATENCY

PEAK_THS5

PEAK_THS4

PEAK_THS3

PEAK_THS2

PEAK_THS1

PEAK_THS0

Table 123. TAP_CFG4 register description

WAIT_END_LATENCY

This bit enables the feature to wait for the end of the latency window to exclusively determine if the

event is a single, double or triple tap.

(0: tap event flag is raised immediately for every detected tap;

1: in case of consecutive taps, only the flag for the highest level of tap is raised. The tap event flag

is raised immediately if the highest level of tap enabled in TAP_CFG5 (74h) (single, double or triple)

is reached, otherwise it is raised at the end of the latency window if no additional taps are detected

within the window.)

PEAK_THS[5:0]

Threshold for peak detection. 1 LSB = 62.5 mg (maximum 3937.5 mg)

LIS2DUX12

TAP_CFG2 (71h)

DS14071 - Rev 2

page 59/102

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