AX88772A

低引脚数USB2.0百兆以太网控制芯片

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简介

近来Multimedia SoC为求降低成本而朝封装小型化发展,降低引脚数之最佳方法即是采用串行接口,除了舍弃高引脚数之PCI bus之外,还可能进一步去除同为高引脚数之Local/Memory bus,取而代之的方法包括:Flash改采SPI接口,连网芯片改接USB 2.0 Host接口。此外,USB仅利用串行的四根讯号即提供高达480Mbps的传输速度,非常适合小体积之手持式装置用来连接外围设备。亚信电子推出AX88772A之USB LAN系列即循此技术趋势发展,满足该类小型封装Multimedia SoC之连网需求。

AX88772A之USB 2.0接口符合USB 1.1及2.0的规范,以太网络接口则符合IEEE 802.3/ IEEE 802.3u协议,该组件内建24KB SRAM网络封包缓存器、媒体存取控制器(MAC)及10/100Mbps以太网络物理层(PHY)。此外,AX88772A还支持进阶功能,包括HP Auto-MDIX、Wake-on-LAN电源管理及IEEE 802.3x/backpressure封包流量控制。可选的串行接口如I²C、SPI及UART可供USB主控制器与外接的微控制器进行必要的控制动作。

AX88772A为一款低成本、高性能、高集成度、即插即用的USB-to-Ethernet网络控制芯片,采用64引脚之小型封装,可大幅减少所占PCB空间。AX88772A主要应用于桌上型计算机、笔记型计算机、UMPC、计算机基座(Cradles/Port replicators/Docking Stations)、游戏机、数字家电及任何具备标准USB端口之嵌入式系统。

规格:

● USB 设备接口
-- 集成USB 2.0收发器及串行接口引擎, 符合USB 1.1/2.0规范
-- 支持USB全速及高速模式, 支持USB总线供电及自供电模式
-- 支持4到6个可编程USB端点 (endpoint)
-- 利用独有的突发传输机制, USB总线可支持高速率数据传输 (已获得美国专利)
-- 以硬件的方式支持USB到以太网转发, 也支持反向转发
● 快速以太网控制器
-- 集成10/100Mbps快速以太网 MAC/PHY
-- 与IEEE 802.3 10Base-T/100Base-TX兼容
-- 支持双绞线交叉检测及自动校正 (HP Auto-MDIX)
-- 内置24KB SRAM用于封包接收缓冲,其中16KB SRAM供RX封包暂存,8KB SRAM供TX封包发送缓冲
-- 支持全双工流量控制及半双工backpressure流量控制
-- 支持2个VLAN ID过滤, 收到VLAN Tag (4 字节) 后可以选择剥除或者保留
-- 支持MAC/PHY 自环诊断
● 支持网络远程唤醒功能
-- 支持挂起模式并如下触发条件下唤醒:网络链接成功、收到Magic packet、收到MS wakeup frame或外部唤醒引脚有效
-- 挂起模式可选择关闭PHY供电
● 支持256/512字节 (93c56/93c66) 串行EEPROM (用来存储USB描述符)
● 支持上电自动从EEPROM装载以太网地址、USB描述符及适配器配置参数
● 提供可选接口: I²C, SPI 和串口
● 芯片内部集成电压调整器, 仅要求单3.3V供电
● 12MHz和25MHz时钟输入, 支持晶体及钟振
● 内置上电复位电路
● 64引脚LQFP符合RoHS规范
● 工作温度范围: 0°C 到 + 70°C

目标应用:

● UMPC, 移动互联网装置(MID), 上网本
● 超薄笔记本电脑
● USB转以太网适配器, USB转光纤网络适配器
● USB转HomePlug网络适配器
● 扩展坞, 端口复用器, 扩展托架
● UWB扩展坞, USB接口WiMAX调制解调器转, 移动3.5G 路由器
● 游戏机
● 智能家居, 机顶盒,视频录像机, PMP, IPTV
● 网络数码相框, 数字媒体播放器
● 网络打印机
● 金融支付终端
● 网络测试设备

图表

开发板

不可购买
不可购买

AX88772A USB 2.0转百兆以太网评估板

AX88772A USB 2.0转10/100M百兆以太网评估板

常见问题

Driver Installation

  • How to identify authentic ASIX USB to LAN products inside?

    If ASIX USB to LAN drivers cannot work fine on your USB to LAN device, please refer to How to identify authentic ASIX USB to LAN Products document to double check if your USB to LAN device includes a Non-authentic ASIX USB to LAN solution inside or not? If yes, please contact the manufacturer of your USB to LAN device to get proper drivers directly. ASIX DOES NOT GUARANTEE AND PROVIDE ANY SUPPORT FOR THOSE NON-AUTHENTIC ASIX PRODUCTS.
    The KY-88772A USB 2.0 to Fast Ethernet Adapter is a typical non-authentic ASIX USB to LAN product.

  • Where can I obtain the the latest AX88772A drivers?

    Please visit the AX88772A Driver Download web page for details.

  • Why don't ASIX's AX88772A standard drivers work with my AX88772A device?

    All ASIX's AX88772A standard drivers are qualified with ASIX's AX88772A demo board with AX88772A default Vendor ID (0B95h) and Product ID (772Ah). Some of AX88772A manufacturers have their own Vendor ID and Product ID on their AX88772A applications. In this case, ASIX's AX88772A standard drivers will not work with your AX88772A device. Please contact the technical support of your AX88772A device manufacturer to obtain a proper driver.

  • How can I install AX88772A Linux driver on my Android tablet PC?

    No, it could not be done by end users. To install AX88772A Linux driver on your Android tablet PC, you have to recompile AX88772A Linux driver source on your target Android tablet platform and then you can install the compiled AX88772A Linux driver on your Android platform. It can only be done by the manufacturer of your Android tablet PC. Please contact the support guys of the manufacturer for further support if necessary.

  • How to capture the VLAN tagged packets on Windows WireShark tool?

    Please set the "Packet Priority & VLAN" parameter of ASIX USB to LAN Windows drivers to "Packet Priority & VLAN Disable" to capture the VLAN tagged packets on WireShark.

  • Does AX88772A support Windows Surface RT 8.0/8.1 driver?

    No, AX88772A doesn’t support Windows Surface RT 8.0/8.1 driver.

  • How to isolate AX88772A macOS driver cannot work fine issue after upgrading to new macOS system?

    Please try to un-install the existing installed AX88772A driver firstly and then re-install the latest AX88772A macOS driver to improve this kind of issue. If you still have problems, please refer to Section 4 of AX88772A macOS driver installation guide in the driver package to isolate your issue.

    For macOS 10.13 or above systems, please double check if you have set the "Allow apps downloaded from" option on the ”Security & Privacy” console to "App Store and identifier developers" to allow loading the newly-installed third-party kernel extensions (KEXTs).

Design Considerations

  • What is the reference Ethernet transformer of the AX88772A demo board?

    The reference Ethernet transformer on the AX88772A demo board is the Bothhand LU1S041X LF (Turns Ratio 1CT:1CT, Auto-MDIX) single RJ-45 connector module with integrated 10/100 BASE-TX magnetic. Please refer to Section 4 of AX88x72A USB-to-LAN Application Design Note for the detailed Ethernet magnetic circuit information. You can download it from AX88772A Application Design & Layout Guide Download web page directly.

  • What are the specification of 12MHz & 25MHz reference crystals of AX88772A demo board?

    The 12MHz/25MHz crystal signals of AX88772A board should be winthin (12MHz +- 50ppm)/(25MHz +- 50ppm) respectively. Please refer to Section 3 of AX88x72A USB-to-LAN Application Design Note for the detailed 12MHz/25MHz crystal circuits information. You can download it from AX88772A Application Design & Layout Guide Download web page directly.

  • What kind of EEPROM is supported by AX88772A?

    AX88772A supports 16-bit mode 93C56 or 93C66 EEPROM.

  • Can I remove the EEPROM from the AX88772A application?

    No, the AX88772A EEPROM content includes important hardware initialization data like USB descriptors, product strings, serial number, etc. This configuration data will be used during the AX88772A's hardware initialization for normal operation.

  • How do I program the AX88772A EEPROM?

    AX88772A supports some default settings inside chip hardware to enable it to communicate with USB host controller during enumeration when the AX88772A EEPROM is blank (prior to being programmed). The default settings inside chip facilitate users to update the EEPROM content through a Windows PC during R&D validation process or program a blank EEPROM mounted on target system PCB during manufacturing process.
    ASIX Electronics provides a Windows SROM Programming tool for users to easily program the Serial EEPROM of AX88772A on a typical Windows XP/2000 PC. This AX88772A WinXP/2K SROM Programming Tool supports to customize the MAC address, Serial Number, Vendor ID and Product ID, etc. for AX88772A based application systems in mass production.

    Alternatively, users can pre-program the blank EEPROM on a 3rd Party Universal Programmer before soldering the EEPROM onto the AX88772A application device. It is recommended that users assign a unique MAC address in the EEPROM for every AX88772A device.

    Also if users plan to use a Windows PC to test AX88772A-based devices repeatedly during mass production, it is recommended that the same serial number be assigned to the EEPROM for every AX88772A device. However, a different serial number should be assigned in the EEPROM for every AX88772A device if users need to install more than one AX88772A device on the same platform.

    Please contact ASIX's sales (sales@asix.com.tw) to get the AX88x72A EEPROM User Guide for more details.

  • Do we need to register our own VID/PID for our AX88772A based application systems or can we use the ASIX's VID/PID?

    It depends on your product applications and target market which may vary case by case. Below are some general guidelines on whether one can use ASIX's VID/PID or use its own registered VID/PID.
    1. Case where it is OK to use ASIX Electronics's VID (0B95h) and PID (772Ah):

    (1) Your AX88772A-based application works with the standard AX88772A drivers provided by ASIX without any modification to the driver.

    (2) You are not concerned from a business and product marketing perspective about sharing the same VID and PID on your products as ASIX's other customers.

    (*Note) Please inform ASIX by emailing us at sales@asix.com.tw beforehand if you would like to use ASIX Electronics VID and PID for your products.

    *Note: This can avoid your end customers from downloading the standard AX88772A driver from the ASIX website which may not be compatible with your device drivers.

    2. Cases requiring you to use your own VID and PID

    (1) Your AX88772A based application system doesn't work with the AX88772A standard drivers released on this website and your target application system (such as USB dongle or docking station) allows end customers to update the standalone AX88772A driver by themselves after sales. In this case, you MUST assign your own unique VID and PID to your AX88772A based devices.

    (2) For brand name products, you probably don't want your AX88772A-based devices to be compatible with other companies' AX88772A-based devices. In this case, you should consider assigning your own unique VID and PID for your AX88772A based devices.

    You can register your own VID from USB Implementers Forum, Inc. and define the PID based on your company rules. If you have any problems, please contact ASIX's sales (sales@asix.com.twa>) for further support.

  • How do I register a Vendor ID from USB-IF?

    If you are a new USB product developer looking to get a Vendor ID for your company, you can register a Vendor ID from USB Implementers Forum, Inc. Please visit the USB-IF web site for details.

  • Do I have to assign a unique MAC address to every AX88772A based devices?

    Yes, every Ethernet device must have a unique MAC address. You should always assign a unique MAC address in the AX88772A EEPROM.

  • How do I register a MAC/Ethernet address from IEEE-SA?

    You must first have an OUI or an IAB, to which you then append 24 or 12 bits respectively, in a way that makes the resulting 48-bit number unique. Your 24 or 12 bits must be unique within your organization, which will require coordination among all the users of your organization's OUI or IAB. Please visit the IEEE-SA web site for details.

  • Do I have to assign a unique serial number to every AX88772A based device?

    No, it depends on the real requirement of your AX88772A target application. If your end customer may need to install more than one AX88772A-based device on your target application, you should assign a different serial number in the EEPROM for every AX88772A device.
    If your target application always uses one AX88772A device, you can consider assigning the same serial number in the EEPROM for every AX88772A device for easy maintenance in mass production, especially if you plan to use a Windows PC to test AX88772A based devices repeatedly during the mass production test.

  • Did the AX88772A pass the USB-IF compliant certification?

    Yes, AX88772A demo board was certified by USB-IF.

  • Are AX88772A Windows drivers qualified by the WHQL compliant certification?

    Yes, all AX88772A Windows 10/8.x7/Vista/XP 32-bit/64-bit drivers were qualified by Microsoft WHQL certification.

  • Does the AX88772A Windows driver support the WOL function in S4 (Hibernate)/S5 (Shutdown) mode?

    The answer depends on whether the USB host controller supports the S4/S5 wake-up function or not since the WOL function of AX88772A USB to LAN devices should be supported on both AX88772A and the USB host controller. Many USB host controllers don't support the WOL function in S4 (Hibernate)/S5 (Shutdown) mode.

  • Can the AX88772A be connected to another Ethernet MAC controller through a MII interface?

    No, the AX88772A doesn't support the MII interface. In this case, you can implement AX88172A with MII interface on your target application. Please contact ASIX's sales (sales@asix.com.tw) for further support.

  • How to open the gerber files of AX88772A demo board?

    You can open the gerber files of AX88772A demo board by running ORACLE's AutoVue Evaluation Revision tool (30 days evaluation date). Please visit ORACLE's web site for more details.

  • How to open the PowerPCB PCB layout file of AX88772A demo board?

    You can open the PowerPCB PCB layout file of AX88772A demo board by running Mentor Graphics PADS Layout Product Evaluation Software (No time limitation but with limited function). Please visit Mentor Graphics' web site for more details.

档案下载

技术文档

产品简述 , 产品介绍和数据手册

AX88772A Product Brief

发布日期
2007-12-17

文件尺寸
311.9 KB

AX88x72A Product Introduction

版本
1.11

发布日期
2013-12-19

文件尺寸
796.2 KB

AX88772A Datasheet

版本
1.08

发布日期
2011-12-13

文件尺寸
1.9 MB

参考手册和用户指南

AX88772C_772B_772A_760_772 macOS Driver Quick Installation Guide

版本
1.00

发布日期
2020-08-10

文件尺寸
2.1 MB

How to identify authentic ASIX USB to LAN Products

版本
1.00

发布日期
2013-07-16

文件尺寸
775.9 KB

AX88x72A EEPROM/Manufacture User Guide

报告

AX88772A Reliability Report

AX88772A RoHS Report

AX88x72A Performance Test Report

硬件设计文档

参考电路图

AX88772A Demo Board Reference Schematic

版本
1.34

发布日期
2009-05-18

文件尺寸
147.8 KB

AX88x72A PHY-to-PHY Connection Reference Circuit

物料清单, 应用说明和布线指南

AX88772A Demo Board BOM File

版本
1.33

发布日期
2008-12-11

文件尺寸
36.6 KB

AX88772A USB-to-LAN Application Design Note

版本
2.02

发布日期
2014-06-10

文件尺寸
805.2 KB

PCB 版图, Gerber 和 IBIS模型文件

AX88772A Demo Board PCB Layout File (PowerPCB)

发布日期
2007-08-16

文件尺寸
115.8 KB

AX88772A Demo Board Gerber Files

发布日期
2007-08-16

文件尺寸
168.0 KB

AX88772A IBIS Model

发布日期
2008-05-15

文件尺寸
843.3 KB

软件 & 工具

驱动程序

Apple macOS 10.9 to 10.15 Drivers Installer

For Apple x86/Power PC, 32-bit/64-bit platforms

版本
2.11.0

发布日期
2020-08-10

文件尺寸
3.4 MB

Linux kernel 5.x/4.x/3.x/2.6.x Driver

For all Android systems, Linux kernel 2.6.14 and later

版本
4.24.0

发布日期
2020-03-24

文件尺寸
32.2 KB

Linux 2.6.9

For Linux kernel 2.6.9~2.6.13

版本
1.2.2

发布日期
2007-09-11

文件尺寸
38.6 KB

Windows 10 32-bit Driver

For x86 CPU platform, HLK certified

版本
3.20.2.0

发布日期
2019-06-06

文件尺寸
60.1 KB

Windows 10 64-bit Driver

For x64 CPU platform, HLK certified

版本
3.20.2.0

发布日期
2019-06-06

文件尺寸
67.7 KB

Windows 10 32-bit/64-bit HLK/WHCK drivers setup program

For x86/x64 CPU platform, HLK certified

版本
1.1.2.0

发布日期
2019-07-16

文件尺寸
8.8 MB

Windows 8.1/8.0 32-bit Driver

For x86 CPU platform, WHCK certified

版本
3.16.10.0

发布日期
2015-01-14

文件尺寸
1.6 MB

Windows 8.1/8.0 64-bit Driver

For x64 CPU platform, WHCK certified

版本
3.16.10.0

发布日期
2015-01-14

文件尺寸
1.7 MB

Windows 8.1/8.0 32-bit/64-bit WHCK drivers setup program

For x86/x64 CPU platform WHCK certified

版本
3.0.3.0

发布日期
2015-01-16

文件尺寸
12.0 MB

Windows 7 32-bit Driver

For x86 CPU platform WHCK certified

版本
3.12.5.0

发布日期
2013-11-05

文件尺寸
1.4 MB

Windows 7 64-bit Driver

For x64 CPU platform WHCK certified

版本
3.14.5.0

发布日期
2013-11-05

文件尺寸
1.6 MB

Windows 7 32-bit/64-bit WHCK drivers setup program

For x86/x64 CPU platform WHCK certified

版本
2.0.1.0

发布日期
2013-12-06

文件尺寸
11.7 MB

Windows Embedded Compact 2013 Driver

For ARMv7 platform

版本
1.6.0.0

发布日期
2015-09-18

文件尺寸
617.5 KB

Windows Embedded Compact 2013 Driver

For x86 CEPC platform

版本
1.6.0.0

发布日期
2015-09-18

文件尺寸
612.6 KB

WinCE 6.0 Driver

For Intel PXA27x ARM platform

版本
1.2.18.0

发布日期
2016-04-19

文件尺寸
823.1 KB

WinCE 6.0 Driver

For x86 CEPC platform

版本
1.2.18.0

发布日期
2016-04-19

文件尺寸
815.5 KB

WinCE 6.0 Driver

For NEC VR5500 MIPS-II platform

版本
1.2.18.0

发布日期
2016-04-19

文件尺寸
826.8 KB

WinCE 6.0 Driver

For NEC VR5500 MIPS-IV platform

版本
1.2.18.0

发布日期
2016-04-19

文件尺寸
827.6 KB

WinCE 6.0 Driver

For Renesas US7750R HA7750R HARP(Aspen) SH4 platform

版本
1.2.18.0

发布日期
2016-04-19

文件尺寸
822.7 KB

Windows CE 5.0 / Mobile 5 / Mobile 6 Driver

For MainStone II Intel PXA27X platform

版本
1.0.15.0

发布日期
2015-03-16

文件尺寸
952.6 KB

Windows CE 5.0 / Mobile 5 / Mobile 6 Driver

For SMDK2410 ARM platform

版本
1.0.15.0

发布日期
2015-03-16

文件尺寸
952.7 KB

Windows CE 5.0 / Mobile 5 / Mobile 6 Driver

For x86 platform

版本
1.0.15.0

发布日期
2015-03-16

文件尺寸
940.1 KB

Windows CE 5.0 / Mobile 5 / Mobile 6 Driver

For NEC VR5500 MIPS-II platform

版本
1.0.15.0

发布日期
2015-03-16

文件尺寸
966.0 KB

Windows CE 5.0 / Mobile 5 / Mobile 6 Driver

For NEC VR5500 MIPS-IV platform

版本
1.0.15.0

发布日期
2015-03-16

文件尺寸
967.4 KB

Windows CE 5.0 / Mobile 5 / Mobile 6 Driver

For Renesas US7750R HARP(Aspen) SH4 platform

版本
1.0.15.0

发布日期
2015-03-16

文件尺寸
954.1 KB

UEFI X64/IA32 Drivers

For UEFI X64/IA32 platforms

版本
2.8.0

发布日期
2017-07-13

文件尺寸
22.2 KB

UEFI ARM/AARCH64 Drivers

For UEFI ARM/AARCH64 platforms

版本
2.8.0

发布日期
2018-11-16

文件尺寸
23.6 KB

工具软件

Windows SROM Programming Tool

Please contact ASIX Sales to get zip password

版本
1.31.0

发布日期
2019-04-24

文件尺寸
1.8 MB

Windows Production Test Tool

Please contact ASIX Sales to get zip password

版本
1.15.0

发布日期
2019-08-02

文件尺寸
1.8 MB

Linux SROM Programming Tool

WinCE SROM Programming Tool