14.2.1.2 Arbitration and Synchronization Logic

In Master mode, the arbitration logic monitors the data line. If any other device on the bus drives the data line Low, the I²C peripheral immediately changes from Master-Transmitter mode to Slave-Receiver mode. The synchronization logic synchronizes the serial clock generator block with the transmitted clock pulses coming from another master device.

The arbitration and synchronization logic implements the timeout requirements as per the SMBus specification version 2.0.