I3C Hot-Join is a feature of the MIPI I3C interface that allows a "Target" (slave) device to join an active bus after initialization has already occurred.

In a traditional bus like I2C, devices are typically assumed to be present and powered from the start. I3C Hot-Join enables "plug-and-play" functionality where devices can be physically inserted or powered on later without disrupting ongoing communication.

This blog introduces how to Testing I3C Hot Join based on Tower I3C Host Adapter:

Testing I3C Hot Join based on Tower I3C Host Adapter