LSM6DS3US Datasheet, PDF (61/104 Pages) STMicroelectronics – iNEMO inertial module: always-on 3D accelerometer and 3D gyroscope

LSM6DS3US
Register description
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
9.19
CTRL8_XL (17h)
Linear acceleration sensor control register 8 (r/w).
LPF2_XL_ HPCF_
EN
XL1
Table 66. CTRL8_XL register
HPCF_
XL0
0⁽¹⁾
0⁽¹⁾
HP_SLOPE_X
L_EN
0⁽¹⁾
LOW_PASS
_ON_6D
1. This bit must be set to ‘0’ for the correct operation of the device.
Table 67. CTRL8_XL register description
LPF2_XL_EN
Accelerometer low-pass filter LPF2 selection. Refer to Figure 7.
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 7.
LOW_PASS_ON_6D Low-pass filter on 6D function selection. Refer to Figure 7.
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
DocID028476 Rev 4
61/104
104