1.6 Common Command Code (CCC)
Whether they are supported or not, the I3C module automatically participates in all CCC transactions. Refer to the appropriate device data sheet for a list of supported CCCs and associated registers.
When a CCC transaction happens on the bus, the CCC code is stored in the I3CxCCC register, and the SCCCIF/UCCCIF flags are set depending on whether the received CCC is supported or not. The flags are set for all Broadcast CCCs and only for those Direct CCCs for which an address match occurs.
Tip: The CCC code stored in the I3CxCCC register can be
used with Unsupported CCC UCCCIF flag to provide custom firmware support for unsupported
CCCs.