SLUAAQ5 May 2024 BQ769142 , BQ76942 , BQ76952 , BQ76972
SMBus utilizes I2C to be able to communicate with the BQ769x2 devices while operating. While the SMBus is communicating via I2C, the user must not try to write SPI messages from another microcontroller. SPI must never be used while the SMBus is active.