LSM6DB0 Datasheet, PDF (54/66 Pages) STMicroelectronics – 3D accelerometer, 3D gyroscope and signal processor

Register description
LSM6DB0
HR
DCF[1:0]
FDS
HPIS1
Table 71. CTRL_REG7_XL register description
High resolution mode for accelerometer enable. Default value: 0
(0: disabled; 1: enabled). Refer to Table 72.
Accelerometer digital filter (high-pass and low-pass) cutoff frequency selection: the bandwidth of the
high-pass filter depends on the selected ODR. Refer to Table 72.
Filtered data selection. Default value: 0.
(0: internal filter bypassed; 1: data from internal filter sent to output register and FIFO)
High Pass filter enabled for acceleration sensor interrupt function on Interrupt. Default value: 0.
(0: filter bypassed; 1: filter enabled)
Table 72. Low-pass cutoff frequency in high resolution mode (HR = 1)
HR
CTRL_REG7 (DCF [1:0])
LP cutoff Freq. [Hz]
1
00
ODR/50
1
01
ODR/100
1
10
ODR/9
1
11
ODR/400
11.29
CTRL_REG8 (22h)
Control register 8.
BOOT
Table 73. CTRL_REG8 register
BDU
H_LACTIVE
0⁽¹⁾
SIM
IF_ADD_INC
BLE
SW_RESET
1. This bit must be set to ‘0’ for the correct operation of the device.
BOOT
Table 74. CTRL_REG8 register description
Reboot memory content. Default value: 0
(0: normal mode; 1: reboot memory content⁽¹⁾)
BDU
Block Data Update. Default value: 0
(0: continuous update; 1: output registers not updated until MSB and LSB read)
H_LACTIVE
Interrupt activation level. Default value: 0
(0: interrupt output pins active high; 1: interrupt output pins active low)
SIM
SPI serial interface mode selection. Default value: 0
(0: 4-wire interface; 1: 3-wire interface)
IF_ADD_INC
BLE
Register address automatically incremented during a multiple byte access with a serial
interface (I²C or SPI). Default value: 1
(0: disabled; 1: enabled)
Big/Little Endian data selection. Default value 0.
(0: data LSB @ lower address; 1: data MSB @ lower address)
SW_RESET
Software Reset. Default value: 0
(0: normal mode; 1: reset device)
This bit is cleared by hardware after next flash boot.
1. Boot request is executed as soon as the internal oscillator is turned-on. It is possible to set the bit while in power-down
mode, in this case it will be served at the next normal mode or sleep mode.
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