CHAPTER 2 FEATURES

Compliant with USB 3.1 Gen 1 Specification

-Upstream port supports SuperSpeed(SS),HighSpeed(HS)and FullSpeed(FS)traffic

-Downstream ports support SS,HS,FS,and LowSpeed(LS)traffic

-1 control pipe and 1 interrupt pipe

-Backward compatible to USB specification Revision 2.0/1.1

Featuring fast-charging on all downstream ports and upstream port

-Compliant with USB Battery Charging Revision v1.2,supporting CDP,DCP,and ACA-Dock

-Downstream ports can be turned from a Standard Downstream Port(SDP)into Charging Downstream Port(CDP)or Dedicated Charging Port(DCP)

-Downstream devices can be charged while upstream VBUS is not present,which can be applied on wall charger applications

-Upstream port is capable of charging and data communicating simultaneously for portable devices supporting ACA-Dock or proprietary charging protocols

-Supporting Apple 1A/2.1A/2.4A and Samsung Galaxy devices fast-charging

On-chip 8-bit micro-processor

-RISC-like architecture

-USB optimized instruction set

-1 cycle instruction execution(maximum)

-Performance:12 MIPS 12.5MHz(maximum)

-With 256-byte RAM,20K-byte internal ROM,and 24K-byte SRAM

Single Transaction Translator(TT)architecture

Advanced power management and low power consumption

-Supporting USB 3.1 U0/U1/U2/U3 power management states

-Supporting USB Link Power Management(LPM)L0/L1/L2

-Supporting individual/gang mode over-current detection for all downstream ports

-Supporting low active power switche

Configurable settings by EEPROM

-Configurable charging port

-Supporting configuration and customized VID/PID by EEPROM

-Supporting compound-device(non-removable setting on downstream ports)

Flexible design

-Supporting Poly-fuse/Power-switch

-Automatic switching between self-powered and bus-powered modes

-Supporting electrical tuning for each specific port

-Allow downstream ports to connect up to 8 devices,4 x USB3.1 non-removable devices with 4 x USB2.0 non-removable devices or exposed ports

Low BOM cost

-Single external 25 MHz crystal/Oscillator clock input

-Built-in upstream port 1.5KΩpull-up and downstream port 15KΩpull-down resistors

-Built-in 5 to 3.3V and 5 to 1.2V regulator

Applications

-Standalone USB hub/Docking station

-USB wall charger