ax88742 ASIX Electronics Corporation, ax88742 Datasheet

ax88742

Manufacturer Part Number

ax88742

Description

Asix Ax88742 - 2-port Ethernet Switch Controller

Manufacturer

ASIX Electronics Corporation

Datasheet

1.AX88742.pdf (2 pages)

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Features

Product Description

The AX88742 is a PCI 2-port 10/100M Ethernet controller which integrates a 3-port switching fabric, three 10/100M

MACs, two 10/100M PHYs, and an 32-bit PCI bus interface. This controller is targeted at embedded system

applications that need to support two Ethernet ports, typically one for a LAN port and one for a WAN port. The

AX88742 supports a popular 32-bit 33MHz PCI bus interface with bus master mode data transfer and routine packet

checksum calculation which makes it easy to provide high performance 2-port Ethernet connectivity solutions for any

embedded MCU. The built-in switching fabric supports non-blocking wire-speed forwarding and provides four priority

queues for advanced QoS functions including Port-Based, 802.1p VLAN, IPv4 TOS/IPv6 COS for voice, video, audio

and data traffic classification. The AX88742 combines the benefits of high integration and flexibility which makes it an

ideal single-chip solution for designing high performance, QoS-aware, cost effective and small form factor 2-port

Ethernet function for any embedded system application.

ASIX Electronics Corporation

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

Hsinchu Science Park,

Hsinchu 30078, Taiwan

Fast Ethernet MAC/PHY

Switching Fabric

QoS

VLAN

High Performance PCI Bus

Supports 32-bit 33MHz PCI host interface,

easily interface to most common embedded

MCUs

Supports PCI Bus Master mode and ACPI

Management function

Supports

IGMP checksum offload to relieve CPU loading

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

Supports full-duplex operation with IEEE 802.3x

flow control and half duplex with backpressure

10/100M PHY supports twisted pair crossover

detection and auto-correction (HP Auto-MDIX)

Supports Wake-on-LAN by Microsoft Wakeup

Frame, Magic Packet and link status change

detection

Performs non-blocking wire-speed forwarding

and filtering

Embeds 32KB SRAM for packet buffering

Supports broadcast storm filtering

Supports per queue and per port ingress and

egress programmable rate limit control (4K ~

100M bps)

Integrates two-way Address-Lookup engine and

table for 1K MAC addresses

Supports Routing Table/IGMP/VLAN Table

access through PCI read/write operation

Supports 802.1D Spanning Tree Protocol and

802.1w Rapid Spanning Tree Protocol

Supports Quality-of-Service for port-based,

802.1p VLAN and IPv4 TOS/IPv6 COS packets

with four priority queues

Supports RFC2475 DiffServ-based

Supports up to 3 VLAN groups for port-based

VLAN and 16 VLAN entries for 802.1Q

tag-based VLAN functions

Supports Double tagging 802.1Q-in-802.1Q

PPPoE/IPv4

IP/TCP/UDP/ICMP/

32-bit PCI 2-Port 10/100M Fast Ethernet Controller

Security

Multicast

Monitoring

Optional Interfaces Supported:

only a 25MHz crystal to operate

Integrates an on-chip oscillator and PLL requiring

Integrates on-chip power-on reset circuit

128-pin LQFP RoHS compliant package

Operating temperature range: 0°C to 70°C

Integrates an on-chip voltage regulator requiring

only a single power supply of 3.3V

function for WAN access

Supports ingress port security mode, incoming

packets with unknown source MAC address

could be dropped

Supports eight Security MAC Registrations

Supports 802.1X port-based Authorization

Supports GMRP/GVRP/GARP packet snooping

Supports up to 1K Multicast Group (shared with

L2 MAC table)

Supports eight IGMP Multicast IP address

snooping

Supports

(RFC1213)

Supports Ethernet-like MIB counter (RFC 1643)

Supports Bridge MIB counter (RFC 1493)

Egress/Ingress Port Mirroring

Sniffer functions:

RMII or Reverse-RMII

Optional serial EEPROM

MII or Reverse-MII

Source/Destination Port

DA/SA

VLAN ID

Ethernet Packet Type

IPv4/IPv6 Protocol

IPv4/IPv6 TCP/UDP Port Number

RMON

Released Date: 2/22/2008

group

FAX: +886-3-579-9558

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

TEL: +886-3-579-9500

Product Brief

1,2,3,9

AX88742

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Related parts for ax88742

ax88742 Summary of contents

Page 1

... QoS functions including Port-Based, 802.1p VLAN, IPv4 TOS/IPv6 COS for voice, video, audio and data traffic classification. The AX88742 combines the benefits of high integration and flexibility which makes it an ideal single-chip solution for designing high performance, QoS-aware, cost effective and small form factor 2-port Ethernet function for any embedded system application ...

Page 2

... Port Redundancy and Port Monitoring Single Board Computers (SBC) Product Selection Guide ASIX Electronics Corporation 4F, No.8, Hsin Ann Rd., Hsinchu Science Park, Hsinchu 30078, Taiwan 32-bit PCI 2-Port 10/100M Fast Ethernet Controller 2 AX88742 Released Date: 2/22/2008 TEL: +886-3-579-9500 FAX: +886-3-579-9558 http://www.asix.com.tw/ ...

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