GL3522-22 Datasheet

© 2014 Genesys Logic, Inc. - All rights reserved.

Page 24

GLI Confidential

5.4 Dedicated Charging Port (DCP)

GL3522-22 also supports dedicated charging port, which is a downstream port on a device that outputs power

through a USB connector, but it is not capable of enumerating a downstream device. With the adequate system

circuit design, GL3522-22 will turn its downstream port from a standard downstream port (SDP) into

dedicated charging port (DCP), i.e short the D+ line to the D- line, to let the portable device draws current up

to 1.5A. Please refer to the USB 3.0 Hub Design Guide document for the detailed information.

5.5 ACA-Dock

An ACA-Dock is a docking station that has one upstream port, and zero or more downstream ports. The

upstream port can be attached to a portable device (PD), and is capable of sourcing ICDP to the PD, which

means that the upstream port can charge and have data communication with the PD at the same time. Please

refer to Battery Charging Spec v1.2 for more details.

5.6 Apple and Samsung Devices

Except BC rev1.2-complied portable devices; GL3522-22 also supports the fast charging of Apple and

Samsung devices.

- Apple: iPhone, iPad series.

- Samsung: Galaxy Tab series, Galaxy Mobile Phones series.

5.7 Port Numbers of Charging Downstream Port Configuration

Number of charging downstream port can be configured as 1/2/3/4 ports by firmware configuration. Please

refer to the Genesys USB 3.0 Hub FW ISP Tool User Guide document for the detailed setting information.