Claim: The support chip for U880 designated U82530DC04 and U82530DC06, is a serial communications controller, and the support chip designated U8272D04 and U8272D08, also for the U880, is a floppy-disk controller.
Evidence: U82530DC04, U82530DC06 serial communications controller U8272D04, U8272D08 floppy-disk controller