The inter-integrated circuit interface (I²C) peripherals in these devices provide bidirectional data transfer with other I2C devices on the bus and support the following key features:

• 7-bit and 10-bit addressing mode with multiple 7-bit target addresses
• Multiple-controller transmitter or receiver mode
• Target receiver or transmitter mode with configurable clock stretching
• Support Standard-mode (Sm), with a bit rate up to 100 kbit/s
• Support Fast-mode (Fm), with a bit rate up to 400 kbit/s
• Support Fast-mode Plus (Fm+), with a bit rate up to 1 Mbit/s
• Separated transmit and receive FIFOs
• Support SMBus 3.0 with PEC, ARP, timeout detection, and host support
• Wakeup from low-power mode on address match
• Support analog and digital glitch filter for input signal glitch suppression

For more details, see the I2C chapter of the MSPM0 C-Series 24MHz Microcontrollers Technical Reference Manual.