Generally, a Virtual Target is a function of a single physical Device that represents multiple I3C Targets on the I3C Bus, such that the I3C Controller can address each of those Targets independently.

In the simplest form, a Virtual Target could be one of a set of several Target Devices, all integrated into the same physical package and all sharing a common set of pins connecting them to an I3C Bus.

In a more advanced form, a Virtual Target could act as one of several virtualized functions presented by a highly-integrated Device that stores a different Dynamic Address for each function. Depending on the implementation, such virtualized functions might share configuration information, and might return the same values for some CCCs.

Examples could include Bridging or Routing Devices, as well as other types of Devices that expose multiple functions and use shared Peripheral logic. I3C v1.1 defines several new capabilities and features for such Virtual Targets.

For details, see the I3C v1.1 specification at Section 5.1.9.3.19, and the System Integrators Application Note for I3C [MIPI05] at Section 5.7.

FAQ Type: 
I3C