I3C Bus Communication

The I3C Target module can be connected to a Legacy I²C Bus or an I3C Bus. The module can act as an I²C Target using static address in the I3CxSADR register until it is assigned a dynamic address by an I3C Controller.

The Target can participate in the following types of transactions on the bus:

1. 1.Broadcast Common Command Code (CCC) Write
2. 2.Direct CCC Read/Write
3. 3.Private Read/Write
4. 4.Hot-Join Request
5. 5.In-Band Interrupt Request
6. 6.Legacy I²C Read/Write

The I3C Target module follows the typical SDR bus communication flow as outlined below in Figure 1.

Figure 1. I3C^® Target Bus Communication Flowchart