LIS35DE datasheet(27/39 Pages) STMICROELECTRONICS

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LIS35DE

Doc ID 15594 Rev 1

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7.3

CTRL_REG3 [interrupt CTRL register] (22h)

7.4

HP_FILTER_RESET (23h)

Dummy register. Reading at this address zeroes instantaneously the content of the internal

high pass-filter. If the high pass filter is enabled all three axes are instantaneously set to 0g.

This allows to overcome the settling time of the high pass filter.

0.5

0.25

Table 21.

High pass filter cut-off frequency configuration (continued)

HP_coeff2,1

ft (Hz)

(DR=100 Hz)

ft (Hz)

(DR=400 Hz)

Table 22.

CTRL_REG3 [interrupt CTRL register] (22h) register

IHL

PP_OD

I2CFG2

I2CFG1

I2CFG0

I1CFG2

I1CFG1

I1CFG0

Table 23.

CTRL_REG3 [interrupt CTRL register] (22h) register description

IHL

Interrupt active high, low. Default value 0.

(0: active high; 1: active low)

PP_OD

Push-pull/Open Drain selection on interrupt pad. Default value 0.

(0: push-pull; 1: open drain)

I2CFG2

I2CFG1

I2CFG0

Data Signal on Int2 pad control bits. Default value 000.

(see table below)

I1CFG2

I1CFG1

I1CFG0

Data Signal on Int1 pad control bits. Default value 000.

(see table below)

Table 24.

Data signal on Int pad control bits

I1(2)_CFG2

I1(2)_CFG1

I1(2)_CFG0

Int1(2) pad

GND

001

FF_WU_1

010

FF_WU_2

FF_WU_1 OR FF_WU_2

Data Ready

Click interrupt

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