ax88772a ASIX Electronics Corporation, ax88772a Datasheet

ax88772a

Manufacturer Part Number

ax88772a

Description

Asix Ax88772a - Single Chip Low-pin-count Usb 2.0 To 10/100m Fast Ethernet Controller.

Manufacturer

ASIX Electronics Corporation

Datasheet

1.AX88772A.pdf (2 pages)

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Features

Product Description

The AX88x72A Low-pin-count USB 2.0 to 10/100M Fast Ethernet controller is a high performance and highly integrated ASIC

which enables a low cost, small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops,

notebook PC’s, UMPC’s, cradles/port replicators/docking stations, game consoles, digital-home appliances, and any embedded

system using a standard USB port.

The AX88x72A features a USB interface to communicate with a USB Host Controller and is compliant with USB specification V1.1

and V2.0. The AX88x72A implements 10/100Mbps Ethernet LAN function based on IEEE802.3 and IEEE802.3u standards with

24KB of embedded SRAM for packet buffering. In addition, it integrates an on-chip 10/100Mbps Ethernet PHY, simplifying system

design.

The AX88172A provides an optional External Media Interface (EMI) for an external PHY or an external MAC depending on

ASIX Electronics Corporation

4F, No.8, Hsin Ann Rd.,

Hsinchu Science Park,

Hsinchu 30078, Taiwan

AX88772A

Single chip USB 2.0 to 10/100M Fast Ethernet controller –

Single chip USB 2.0 to MII, single chip MII to Ethernet and

USB Device Interface

Fast Ethernet Controller

Support Wake-on-LAN Function

USB Bridging controller in Dual-PHY mode (US Patent

Pending) – AX88172A

Supports USB Full and High Speed modes with

Bus-Power or Self-Power capability

Supports 4 or 6 programmable endpoints on USB

interface

High performance packet transfer rate over USB bus

using proprietary burst transfer mechanism (US Patent

Approval)

Supports USB to Ethernet bridging or vice versa in

hardware

Integrates 10/100Mbps Fast Ethernet MAC/PHY

IEEE 802.3 10BASE-T/100BASE-TX compatible

Supports

auto-correction (HP Auto-MDIX)

Embedded 16KB SRAM for RX packet buffering and

8KB SRAM for TX packet buffering

Supports both Full-duplex with flow control and

Half-duplex with backpressure operation

Supports 2 VLAN ID filtering, received VLAN Tag (4

bytes) can be stripped off or preserved

MAC/PHY loop-back diagnostic capability

Integrates on-chip USB 2.0 transceiver and SIE

compliant to USB Spec 1.1 and 2.0

twisted

pair

crossover

detection

USB 2.0 to 10/100M Fast Ethernet Controller

and

(for storing USB Descriptors)

Descriptors and Adapter Configuration from EEPROM after

power-on initialization

single 3.3V power supply

oscillator source

80-pin TQFP (AX88172A) RoHS compliant package

Versatile External Media Interface

Supports 256/512 bytes (93c56/93c66) of serial EEPROM

Provides optional serial interface, I2C, SPI and UART

Integrates on-chip voltage regulator and only requires a

Integrates on-chip power-on reset circuit

Operating temperature range: 0°C to 70°C

12MHz and 25Mhz clock input from either crystal or

Small form factor with 64-pin LQFP (AX88772A) or

Supports automatic loading of Ethernet ID, USB

Supports Suspend mode and Remote Wakeup via

Link-up, Magic packet, MS wakeup frame and external

Optional PHY power down during Suspend mode

Optional MII interface in MAC mode allows AX88172A

to work with external 100BASE-FX Ethernet PHY or

HomePNA PHY

Optional Reverse-MII or Reverse-RMII interface in

PHY mode allows AX88172A to work with external

HomePlug PHY or glueless MAC-to-MAC connections

Optional Reverse-MII interface in Dual-PHY mode (US

Patent Pending) allows AX88172A to act as an Ethernet

PHY or USB 2.0 PHY for external MAC device that

needs Ethernet and USB in system application

different application purposes. The EMI can be a

media-independent interface (MII) for implementing

100BASE-FX Ethernet or HomePNA functions. The

EMI can also be a Reverse-MII or Reverse

Reduced-MII

MAC-to-MAC connections to any MCU with

Ethernet MAC MII or RMII interface. In addition,

the EMI can be configured to Dual-PHY mode

allowing the AX88172A to act as an Ethernet PHY

or USB 2.0 PHY for external MAC devices that

need Ethernet and USB interfaces in their system

applications. Optional serial interfaces such as I2C,

SPI, and UART are provided as a control channel

from the USB Host Controller to communicate with

the external MCU chip.

AX88772A/AX88172A

(Reverse-RMII)

Released Date: 12/17/2007

FAX: +886-3-579-9558

http://www.asix.com.tw/

TEL: +886-3-579-9500

Low-pin-count

Product Brief

for

glueless

Related parts for ax88772a

ax88772a Summary of contents

Page 1

... Integrates on-chip power-on reset circuit Small form factor with 64-pin LQFP (AX88772A) or 80-pin TQFP (AX88172A) RoHS compliant package Operating temperature range: 0°C to 70°C different application purposes. The EMI can be a media-independent interface (MII) for implementing 100BASE-FX Ethernet or HomePNA functions ...

Page 2

... Application Diagram High-speed USB-to-LAN Applications ASIX Electronics Corporation 4F, No.8, Hsin Ann Rd., Hsinchu Science Park, Hsinchu 30078, Taiwan AX88772A/AX88172A USB 2.0 to 10/100M Fast Ethernet Controller 2 Low-pin-count Released Date: 12/17/2007 TEL: +886-3-579-9500 FAX: +886-3-579-9558 http://www.asix.com.tw/ ...

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