LIS331DL(2007) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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LIS331DL
(Rev.:2007)

MEMS motion sensor 3-axis - ±2g/±8g smart digital output “nano” accelerometer

STMicroelectronics 

LIS331DL

Register description

7.17 FF_WU_DURATION_2 (37h)

Table 38. FF_WU_DURATION_2 register

D7

D6

D5

D4

D3

D2

D1

D0

Table 39. FF_WU_DURATION_2 description

D7-D0

Duration value. Default value: 0000 0000

Duration register for Free-Fall/Wake-Up interrupt 2. Duration step and maximum value

depend on the ODR chosen. Step 2.5 msec, from 0 to 637.5 msec if ODR=400Hz, else step

10 msec, from 0 to 2.55 sec when ODR=100Hz. The counter used to implement duration

function is blocked when LIR=1 in configuration register and the interrupt event is verified.

7.18

CLICK_CFG (38h)

Table 40. CLICK_CFG register

-

LIR

Double_Z Single_Z Double_Y Single_Y Double_X Single_X

Table 41.

LIR

CLICK_CFG description

Latch Interrupt request into CLICK_SRC reg with the CLICK_SRC reg

refreshed by reading CLICK_SRC reg. Default value: 0

(0: interrupt request not latched; 1: interrupt request latched)

Double_Z

Enable interrupt generation on double click event on Z axis. Default value:

0

(0: disable interrupt request; 1: enable interrupt request)

Single_Z

Enable interrupt generation on single click event on Z axis. Default value: 0

(0: disable interrupt request; 1: enable interrupt request)

Double_Y

Enable interrupt generation on double click event on Y axis. Default value:

0

(0: disable interrupt request; 1: enable interrupt request)

Single_Y

Enable interrupt generation on single click event on Y axis. Default value:

0

(0: disable interrupt request; 1: enable interrupt request)

Double_X

Enable interrupt generation on double click event on X axis. Default value:

0

(0: disable interrupt request; 1: enable interrupt request)

Single_X

Enable interrupt generation on single click event on X axis. Default value:

0

(0: disable interrupt request; 1: enable interrupt request)

Table 42. Axis

Double_Z / Y / X

0

0

Single_Z / Y / X

0

1

0

Single

Click output

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