CY4521 EZ-
PD™ CCG2 Evaluation Kit Guide, Doc. No. 002-15712 Rev. *A
41
6.
Appendix
6.1 Terminology
This guide assumes that the user of the CY4521 EZ-PD CCG2 EVK is familiar with the fundamentals of Type-C connectivity
and the USB Power Delivery protocol. A brief description of Type-C terms is provided here for reference.
Alternate Modes: A feature of a USB Type-C system whereby one or both of the SuperSpeed lanes may be repurposed
for use with a different serial protocol, such as a DisplayPort, eSATA, or Thunderbolt.
Client: A USB peripheral such as a hub, docking station, or monitor.
Configuration channel (CC):
A
USB Type-C bus wire used to transmit protocol signals. This is a half-duplex 300-kHz
signal.
Consumer: A Type-C port that sinks power from VBUS.
DisplayPort: A digital display interface standard developed by the Video Electronics Standards Association. It is used
primarily to connect a video source to a display such as a computer monitor.
Downstream facing port (DFP): A USB Type-C port on a host or a hub to which devices are connected.
Dp, Dn:
USB Type-C bus wires used to transmit and receive USB 2.0 data.
Dual-role port (DRP): A USB Type-C port that can operate as either a DFP or a UFP.
Electronically Marked Cable Assembly (EMCA): A USB cable that includes an IC that reports cable characteristics (such
as current rating) to the Type-C ports.
GND
RX2p
RX2n
V
BUS
Dn
CC
SBU1
Dp
V
BUS
TX1n
TX1p
GND
GND
TX2p
TX2n
V
BUS
SBU2
V
CONN
V
BUS
RX1n
RX1p
GND
B1
B2
B3
B4
B5
B8
B9
B10
B11
B12
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
2.4mm
2.5mm
GND
RX2p
RX2n
V
BUS
Dn1
CC1
SBU1
Dp1
V
BUS
TX1n
TX1p
GND
GND
TX2p
TX2n
V
BUS
SBU2
CC2
V
BUS
RX1n
RX1p
GND
B1
B2
B3
B4
B5
B8
B9
B10
B11
B12
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
Dp2
Dn2
B6
B7
USB3.0 Type-C Plug
USB3.0 Type-C Receptacle
Host: A USB Host system such as a PC, notebook, and laptop.
Provider: A Type-C port that sources power over VBUS.
Sideband use (SBU): A
USB Type-C bus wire used for non-USB control signals, such as DisplayPort control signals.
Type-C Transceiver
:
A transmitter/receiver that communicates over the CC.
TX1p, TX1n, RX1p, RX1n, TX2p, TX2n, RX2p, and RX2n:
USB Type-C bus wires used to transmit and receive
SuperSpeed USB and PCIe or DisplayPort data.
Upstream facing port (UFP): A USB Type-C port on a device or a hub that connects to a host or the DFP of a hub.
USB Power Delivery (USB PD, PD): A new USB standard that increases maximum power delivery over USB from 7.5 W
to 100 W.
USB Type-C (Type-C): A new standard with a slimmer USB connector and a reversible cable, capable of sourcing up to
100 W of power and supporting Alternate Modes.
VBUS:
A
USB Type-C bus wire used for power; initially 5 V, but can be increased up to 20 V on USB PD systems.
VCONN
:
A USB Type-C bus wire used to power the IC in the EMCA.
Summary of Contents for EZ-PD CY4521
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