Introduction
CY4502 EZ-
PD™ CCG2 Development Kit Guide, Doc. No. 001-96601 Rev. *B
9
Definitions and
Acrynoms
Meaning
UFP
Upstream facing port is a USB Type-C port on a device or a hub that connects to a host or a hub DFP.
USB
Universal Serial Bus.
USB-IF
Universal Serial Bus Implementers’ Forum.
Vendor Defined
Message (VDM)
PD Data Message defined for vendor/standards usage. These are further partitioned into Structured
VDM messages, where Commands are defined in this specification, and Unstructured VDM messages
which are entirely Vendor Defined.