Yes, I3C allows for multiple Masters on the same Bus. I3C has one Main Master that initially configures the Bus and acts as the initial Current Master. Optionally, the Bus can have one or more Secondary Master Devices that initially act as Slaves. Any Secondary Master Device can request to become the Current Master. Once the Current Master agrees to the request, and transfers Current Master control (‘Mastership’) to a given Secondary Master Device, then that Device becomes the Current Master.