Datasheet

58/99 DocID026899 Rev 7

9.19 CTRL8_XL (17h)

Linear acceleration sensor control register 8 (r/w).

Table 65. Gyroscope high-pass filter mode configuration

HPCF_G1 HPCF_G0 High-pass filter cutoff frequency

0 0 0.0081 Hz

0 1 0.0324 Hz

1 0 2.07 Hz

1 1 16.32 Hz

Table 66. CTRL8_XL register

LPF2_XL_

HPCF_

XL1

HPCF_

XL0

(1)

1. This bit must be set to ‘0’ for the correct operation of the device.

(1)

HP_SLOPE_X

L_EN

(1)

LOW_PASS

_ON_6D

Table 67. CTRL8_XL register description

LPF2_XL_EN Accelerometer low-pass filter LPF2 selection. Refer to Figure 5.

HPCF_XL[1:0]

Accelerometer slope filter and high-pass filter configuration and cutoff

setting. Refer to Table 68. It is also used to select the cutoff frequency of the

LPF2 filter, as shown in Table 69. This low-pass filter can also be used in the

6D/4D functionality by setting the LOW_PASS_ON_6D bit of CTRL8_XL

(17h) to 1.

HP_SLOPE_XL_EN Accelerometer slope filter / high-pass filter selection. Refer to Figure 5.

LOW_PASS_ON_6D Low-pass filter on 6D function selection. Refer to Figure 5.

Table 68. Accelerometer slope and high-pass filter selection and cutoff frequency

HPCF_XL[1:0] Applied filter HP filter cutoff frequency [Hz]

00 Slope ODR_XL/4

01 High-pass ODR_XL/100

10 High-pass ODR_XL/9

11 High-pass ODR_XL/400

Table 69. Accelerometer LPF2 cutoff frequency

HPCF_XL[1:0] LPF2 digital filter cutoff frequency [Hz]

00 ODR_XL/50

01 ODR_XL/100

10 ODR_XL/9

11 ODR_XL/400