LSM6DST datasheet(121/180 Pages) STMICROELECTRONICS

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LSM6DST

SPI2 register description

180

11.11

SPI2_CTRL1_OIS (70h)

OIS configuration register. The auxiliary SPI interface can write this register when the

OIS_CTRL_FROM_UI bit in the FUNC_CFG_ACCESS (01h) register is equal to 0 (SPI2

Full control mode); this register is read-only when the OIS_CTRL_FROM_UI bit is equal to 1

(Primary IF Full control mode) and shows the content of the UI_INT_OIS (6Fh) register.

Table 220. SPI_CTRL1_OIS register description

DEN mode selection can be done using the LVL1_OIS bit of register UI_CTRL1_OIS (70h)

and the LVL2_OIS bit of register UI_INT_OIS (6Fh).

DEN mode on the OIS path is active in the gyroscope only.

Table 219. SPI_CTRL1_OIS register

0(1)

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

LVL1_OIS

SIM_OIS

Mode4_

FS1_G_

OIS

FS0_G_

OIS

FS_125_

OIS

OIS_EN_

SPI2

LVL1_OIS

Enables level-sensitive trigger mode on the OIS chain. Default value: 0

SIM_OIS

SPI2 3- or 4-wire interface. Default value: 0

(0: 4-wire SPI2;

1: 3-wire SPI2)

Mode4_EN

Enables accelerometer OIS chain. OIS outputs are available through SPI2 in

registers SPI2_OUTX_L_A_OIS (28h) and SPI2_OUTX_H_A_OIS (29h) through

SPI2_OUTZ_L_A_OIS (2Ch) and SPI2_OUTZ_H_A_OIS (2Dh) and

SPI2_STATUS_REG_OIS (1Eh).

Note: OIS_EN_SPI2 must be enabled (i.e. set to ‘1’) to enable also XL OIS chain.

FS[1:0]_G_

OIS

Selects gyroscope OIS chain full-scale

(00: ±250 dps;

01: ±500 dps;

10: ±1000 dps;

11: ±2000 dps)

FS_125_OIS

Selects gyroscope OIS chain full-scale ±125 dps

(0: FS selected through bits FS[1:0]_OIS_G;

1: ±125 dps)

OIS_EN_SPI2

Enables OIS chain data processing for gyro in Mode 3 and Mode 4 (mode4_en = 1)

and accelerometer data in and Mode 4 (mode4_en = 1).

When the OIS chain is enabled, the OIS outputs are available through the SPI2 in

registers SPI2_OUTX_L_G_OIS (22h) and SPI2_OUTX_H_G_OIS (23h) through

SPI2_OUTZ_L_G_OIS (26h) and SPI2_OUTZ_H_G_OIS (27h) and STATUS_REG

(1Eh) and SPI2_STATUS_REG_OIS (1Eh), and LPF1 is dedicated to this chain.

Table 221. DEN mode selection

LVL1_OIS, LVL2_OIS

DEN mode

Level-sensitive trigger mode is selected

Level-sensitive latched mode is selected

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