LSM6DS3US Datasheet, PDF (43/104 Pages) STMicroelectronics – iNEMO inertial module: always-on 3D accelerometer and 3D gyroscope

LSM6DS3US
Application hints
7.3
LSM6DS3US electrical connections in Mode 3
Figure 17. LSM6DS3US electrical connections in Mode 3
(SPI 4-wire primary interface configuration)
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1. Leave pin electrically unconnected and soldered to PCB.
The device core is supplied through the Vdd line. Power supply decoupling capacitors (C1,
C2 = 100 nF ceramic) should be placed as near as possible to the supply pin of the device
(common design practice).
The functionality of the device and the measured acceleration/angular rate data is
selectable and accessible through the SPI/I²C interface.
The functions, the threshold and the timing of the two interrupt pins for each sensor can be
completely programmed by the user through the SPI/I²C interface.
In the primary SPI connection, the gyroscope output data is available in registers 22h to 27h
with user-selected FS and ODR. In the auxiliary SPI, the gyroscope output is available in
registers 22h to 27h @ 3.3 kHz and FS = 250 dps.
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