ASIX ELECTRONICS CORPORATION

Frist Released Date: Dec/20/2001

2F, NO.13, Industry East Rd. II, Science-based Industrial Park, Hsin-Chu City, Taiwan, R.O.C.

TEL: 886-3-579-9500

FAX: 886-3-579-9558

http://www.asix.com.tw

AX88172 L

USB to Fast Ethernet/HomePNA Controller

USB to Fast Ethernet/HomePNA Controller

Document No.: AX172-4/ V1.4 / DEC, 20/02

Features

•

Single chip USB to 10/100Mbps Fast Ethernet and

1/10Mbps HomePNA and HomePlug Network

Controller

•

Compliant with USB specification 1.0 and 1.1 and

2.0

•

Full/High Speed USB Device with bus power

capability

•

Support 4 endpoints on USB

•

IEEE 802.3u 100BASE-T, TX, and T4 Compatible

•

Embedded 7K*16 bit SRAM, 256*16 bit SRAM

and 8 FIFOs

•

Support both full-duplex or half-duplex operation

on Fast Ethernet

•

Provides a MII port for both Ethernet and

HomePNA/ HomePlug PHY interface

•

Supports suspended mode and remote wakeup

(link_up or magic packet or external pin)

•

Optional PHY power down mode for power saving

•

Support

(94c56/93c66)

256/512

bytes

serial

EEPROM (used for saving USB Descriptors)

•

Support automatic loading of Ethernet ID, USB

Descriptors

and

Adapter

Configuration

from

EEPROM on power-on initialization

•

External PHY loop-back diagnostic capability

•

Small form factor with 80-pin LQFP package

•

Single 12MHz clock input, pure 3.3V operation

*IEEE is a registered trademark of the Institute of Electrical and

Electronic Engineers, Inc.

*All other trademarks and registered trademark are the property of their

respective holders.

Product description

The AX88172 USB to Fast Ethernet/HomePNA/HomePlug Controller is a high performance and highly integrated

Controller with embedded 7K*16 bit SRAM. The AX88172 contains a USB interface to host CPU and compliant with

USB Standard V1.0, V1.1 and V2.0. The AX88172 could be used for both 10M/100Mbps Fast Ethernet function based on

IEEE802.3 / IEEE802.3u LAN standard and 1M/10M HomePNA standard. The AX88172 supports media-independent

interface (MII) to simplify the design on implementing Fast Ethernet and HomePNA functions.

System Block Diagram

Always contact ASIX for possible updates before starting a design.

This data sheet contains new products information. ASIX ELECTRONICS reserves the rights to modify product specification without notice. No

liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.

AX88172

10/100 Mbps Ethernet

PHY/TxRx

MAGNETIC

RJ45

USB I/F

EEPROM

1/10 Mbps

Home LAN PHY

MAGNETIC

RJ11