原标题：Cypress CYUSB330x系列USB 3．0HX3参考设计CY4609

　　cypress公司的CYUSB330x/CYUSB331x CYUSB332x/CYUSB230x系列是USB 3.0集线器控制器,和USB 3.0版本1.0 HX3兼容,在所有端口支持超速(SS)((5 Gbps),高速(HS)(480 Mbps),全速(FS)(12 Mbps)和低速(1.5 Mbps).器件具有集成端,上拉和下拉电阻,支持通过引脚设置选择配置,从而降低整个系统的材料清单(BOM).SS和USB 2.0连接功率管理(LPM),专用的高速事件转换器(Multi-TT),LED状态显示暂停,SS和USB 2.0操作,用于嵌入应用的共享连接.具有增强电池充电特性;器件集成了ARM® Cortex™-M0 CPU和16 KB RAM与 32 KB ROM,配置的GPIO用于过流保护,电源使能和LED,采用I2C EEPROM或外接I2C主进行升降固件.用户配置模式支持eFuse, I2CEEPROM或I2C从.软件特性包括用于视窗XP/Vista/7/8/8.1的WHQL认证的微软,和Mac OS 10.9以及Linux核版本3.11兼容,定制化的配置参数和具有容易使用的Cypress公司的“Blaster Plus”软件工具.器件工作温度–40℃到+85℃,主要用在标准集线器,PC和平板电脑主板,坞站,手持式摇篮,监视器,数字TV,机顶盒和打印机.本文介绍了CYUSB330x/CYUSB331x 和CYUSB332x/CYUSB230x系列主要特性,框图,在笔记本电脑共享连接应用框图和参考设计CY4609 RDK主要特性,硬件框图和电路图.

　　CY4609 is an easy-to-use Reference Design Kit

　　CYUSB330x/CYUSB331x CYUSB332x/CYUSB230x

　　HX3 is a family of USB 3.0 hub controllers compliant with the USB 3.0 specification revision 1.0. HX3 supports SuperSpeed (SS),Hi-Speed (HS), Full-Speed (FS), and Low-Speed (LS) on all the ports. It has integrated termination, pull-up, and pull-down resistors,and supports configuration options through pin-straps to reduce the overall BOM of the system.

　　HX3 includes the following Cypress-proprietary features:

　　Shared Link™: enables extra downstream (DS) ports for on-board connections in embedded applications

　　Ghost Charge™: Enables charging of devices connected to the DS ports when no host is connected on the upstream (US) port

　　CYUSB330x系列主要特性:

　　■ USB-IF Certified Hub, TID# 330000060, 30000074

　　■ Supports up to Four USB 3.0-Compliant DS ports

　　❐All ports support SS (5 Gbps), and are backward-compatiblewith HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps)

　　❐SS and USB 2.0 Link Power Management (LPM)

　　❐Dedicated Hi-Speed Transaction Translators (Multi-TT)

　　❐LED status indicators – suspend, SS, and USB 2.0 operation

　　■ Shared Link™ for Embedded Applications

　　❐Each DS port can simultaneously connect to an embeddedSS device and a removable USB 2.0 device

　　❐Enables up to eight device connections

　　■ Enhanced Battery Charging

　　❐Each DS port complies with the USB Battery Charging v1.2(BC v1.2) specification

　　❐Ghost Charge™: Each DS port can emulate a DedicatedCharging Port (DCP) when the host is not connected to theUS port

　　❐Accessory Charger Adapter Dock (ACA-Dock): Enablescharging and simultaneous data transfer for a smart phoneor a tablet acting as a host compliant to BC v1.2

　　❐Apple charging supported on all DS ports

　　■ Integrated ARM® Cortex™-M0 CPU

　　❐16 KB RAM, 32 KB ROM

　　❐Configure GPIOs for overcurrent protection, power enable,and LEDs

　　❐Upgrade firmware using (a) I2C EEPROM or (b) an externalI2C master

　　■ Vendor-Command Support to Implement a USB-to-I2C Bridge

　　❐Firmware upgrade of an external ASSP connected to HX3through USB

　　❐In-System Programming (ISP) of the EEPROM connected toHX3 through USB

　　■ Extensive Configuration Support

　　❐Pin-strap configuration for the following functions:

　　• Vendor ID (VID)

　　• Charging support for each DS port

　　• Number of active ports

　　• Number of non-removable devices

　　• Ganged or individual power switch enables for DS ports

　　• Power switch polarity selection

　　❐Custom configuration modes supported with eFuse, I2CEEPROM, or I2C slave

　　• SS and USB 2.0 PHY parameters

　　• Product ID (PID)/VID, manufacturer, and product stringdescriptors

　　• Swap DP/DM signals for flexible PCB routing

　　■ Software Features

　　❐Microsoft WHQL-certified for Windows XP/Vista/7/8/8.1

　　❐Compatible with Mac OS 10.9 and Linux kernel version 3.11

　　❐Customize configuration parameters with the easy-to-use

　　Cypress’s “Blaster Plus” software tool

　　■ Flexible Packaging Options

　　❐68-pin QFN (8 × 8 × 1.0 mm)

　　❐88-pin QFN (10 × 10 × 1.0 mm)

　　❐100-ball BGA (6 × 6 × 1.0 mm)

　　❐Industrial temperature range (–40℃ to +85℃)

　　CYUSB330x系列应用:

　　■ Standalone hubs

　　■ PC and tablet motherboards

　　■ Docking station

　　■ Hand-held cradles

　　■ Monitors

　　■ Digital TVs

　　■ Set-top boxes

　　■ Printers

　　图.CYUSB330x HX3系列在笔记本电脑共享连接应用框图

　　参考设计CY4609 RDK

　　Thank you for your interest in the CY4609, CY4603, and CY4613 HX3 kits. HX3 is a family ofUSB 3.0 hub controller parts compliant to USB 3.0 specification revision 1.0. These parts supportLow-Speed (LS), Full-Speed (FS), Hi-Speed (HS), and SuperSpeed (SS) peripherals.

　　The CY4609 Reference Design Kit (RDK) is a small form-factor, ready-to-use hub reference design.

　　The CY4603 Development Kit (DVK) provides the flexibility to configure and evaluate all HX3 features.

　　The CY4613 DVK implements advanced features, such as Shared Link™ and ACA-Dock.This document is the common user guide for the three HX3 kits, which are based on three differentHX3 USB 3.0 hub controller parts.

　　The CY4603, CY4609, and CY4613 kits are intended for use as a development platform forhardware or software in a laboratory environment. The board is designed as an open system, whichdoes not include a shielded enclosure. This may cause interference to other electrical or electronicdevices in close proximity. In a domestic environment, these products may cause radio interference.

　　In such cases, you may be required to take adequate preventive measures. In addition, theseboards should not be used near any medical equipment or RF devices.

　　Attaching additional wiring to these products or modifying the product operation from the factorydefault may affect their performance and cause interference with other apparatus in the immediatevicinity. If such interference is detected, suitable mitigating measures should be taken.

　　Feature Comparison of HX3 Kits

　　图3.参考设计CY4609 RDK外形图(1)

　　图4.参考设计CY4609 RDK外形图(2):正面

　　图5.参考设计CY4609 RDK外形图(2):背面

　　参考设计CY4609 RDK包括以下元件:

　　■ CYUSB3304-68LTXC hub controller

　　■ 5-V DC supply jack to connect the 5-V/4-A power adapter provided as part of the kit

　　■ Two DC-DC power regulators to provide 3.3-V and 1.2-V power supply

　　■ Four USB 3.0 downstream ports and a USB 3.0 upstream port

　　■ Configuration mode select jumpers (J7 and J8)

　　■ Onboard 16-KB I2C EEPROM to store configuration data and hub controller firmware

　　■ Power LED (PWR) and Hub Suspend Status LED (SUSP)

　　■ Current measurement jumper (J2)