LSM6DSOX datasheet(25/199 Pages) STMICROELECTRONICS

Part #	LSM6DSOX

Description	iNEMO inertial module: always-on 3D accelerometer and 3D gyroscope

PDF	199 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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25 / 199 page

5.3

I²C/I3C coexistence in LSM6DSOX

In the LSM6DSOX, the SDA and SCL lines are common to both I²C and I3C. The I²C bus requires anti-spike

filters on the SDA and SCL pins that are not compatible with I3C timing.

The device can be connected to both I²C and I3C or only to the I3C bus depending on the connection of the INT1

pin when the device is powered up:

•

INT1 pin floating (internal pull-down): I²C/I3C both active, see Figure 14

•

INT1 pin connected to VDD_IO: only I3C active, see Figure 15

Figure 14. I²C and I3C both active (INT1 pin not connected)

Address assignment (DAA or ENTDA) must be performed with I²C Fast Mode Plus Timing. When the slave

is addressed, the I²C slave is disabled and the timing is compatible with I3C specifications.

Figure 15. Only I3C active (INT1 pin connected to VDD_IO)

When the slave is I3C only, the I²C slave is always disabled. The address can be assigned using I3C SDR

timing.

LSM6DSOX

I²C/I3C coexistence in LSM6DSOX

DS12814 - Rev 3

page 25/199

LSM6DSOX Datasheet(PDF) 25 Page - STMicroelectronics