37 I3C® - Improved Inter-Integrated Circuit Module

The Improved Inter-Integrated Circuit (I3C) is a multi-Controller serial data communication interface which builds upon the traditional Inter-Integrated Circuit (I²C) interface. Similar to I²C, devices on the I3C bus communicate in a Controller/Target environment where either the Controller or the Target device can initiate the communication. The I3C interface is developed by the MIPI® Alliance and provides a fast, low-cost, low-power managed two-wire digital interface to improve sensor and device integration. The I3C interface is also backward compatible with the I²C standard.

The I3C module on this device supports Target functionality only, with no Controller capabilities. Figure 37-1 shows a block diagram of the I3C Target module interface.