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BQ40Z80: SMBus and I2C Compatibility

Part Number: BQ40Z80
Other Parts Discussed in Thread: BQ76952,

I have a design that uses a STM32 microcontroller (STM32L496RGT3) that communicates with a BQ76952 chip using an I2C bus. On this design I am adding a BQ40Z80 chip and tied the SMBus of this chip to the existing I2C bus. 

Is the SMBus compatible with the I2C bus with these chips? Is there anything particular I should be aware of when configuring the microcontroller to talk to both chips?