Cypress EZ-PD CCG2 Development Kit, Руководство пользователя

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Introduction
CY4502 EZ-
PD™ CCG2 Development Kit Guide, Doc. No. 001-96601 Rev. *G
8
Definitions and Acronyms Meaning
End Of Packet (EOP) K-code marker used to delineate the end of a packet
I
2
C Inter-integrated circuit.
Packet An entire unit of PD communication, including a preamble, SOP, payload, CRC, and EOP.
Passive cable
Cable with a USB plug on each end, at least one of which is a cable plug supporting SOP’ that does not
incorporate data bus signal conditioning circuits. Supports the Structured VDM to determine its
characteristics.
USB Type-C
™ specification
does not discuss passive cables that are not EMCAs.
PC Personal computer.
PD Power Delivery
SBU
Sideband Use Signals are used in the Alternate Mode supported by the USB Type-C
™ specification,
which enables multi-purposing of Type-C signals for alternate uses such as DisplayPort
SCL I
2
C serial clock line.
SDA I
2
C serial data line.
SDK Software development kit.
Start of packet (SOP) K-code marker used to delineate the start of a packet. Three SOP
sequences are defined: SOP, SOP’,
and SOP’’, with SOP* used to refer to all three.
SOP packet PD packet that starts with an SOP.
SOP’ packet
PD packet that starts with an SOP’; used to communicate with a cable plug at the near end/host side of
the cable.
SOP’’ packet PD packet that starts with an SOP’’; used to communicate with a cable plug at the far end/device side of
the cable.
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.