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Home >> Products >> Embedded Ethernet ICs >> Non-PCI Fast Ethernet >> AX88782

ASIX Electronics Corporation    AX88782  Product Introduction   v1.2

 AX88782 -- Non-PCI 8/16-bit 2-Port 10/100M Fast Ethernet Controller

The AX88782 is a single-chip 2-port 10/100M Ethernet Switch controllers featuring a 3-port switching fabric with QoS priority management, three 10/100M MACs, two 10/100M PHYs, and 8/16-bit Non-PCI host interface. The AX88782 supports checksum offload engine and burst-mode access making it easy to provide a high performance 2-port Ethernet connectivity solution for any embedded MCU. The built-in switching fabric in the AX88782 supports non-blocking wire-speed forwarding and offers an advanced switch feature set that includes tag/port-based VLAN, spanning tree, rate control, port security, port mirroring, IGMP snooping, MIB counters and four priority queues for QoS functions including Port-Based, 802.1p VLAN, IPv4 TOS and IPv6 COS to prioritize voice, video, audio and data traffic delivery.

The AX88782 have integrated a voltage regulator and provide support for programmable I/O voltage options of 3.3V/2.5V/1.8V to enable a highly optimized system design. As semiconductor designs migrate to advanced process geometries like 90nm, 65nm, 45nm and beyond, many of today's higher performance ASICs, SoCs and FPGAs require lower I/O voltages.

The AX88782 combine the benefits of high integration and small form factor making them ideal single-chip solutions for designing high performance, QoS-aware and cost effective 2-port Ethernet functions for embedded system applications such as VoIP phone/ATA adapters, surveillance IP cameras, next-generation IP-STB/IPTV, industrial controller/network sensors, port redundancy/port monitoring and Single Board Computers (SBC)



  • High Performance Non-PCI Interface
    • Configurable 8/16-bit SRAM-like host interface (US Patent Approval), easily interfaces with most common embedded MCUs
    • Supports PPPoE/IPv4 IP/TCP/UDP/ICMP/ IGMP checksum offload to relieve CPU loading
    • Supports burst-mode access, minimizing CPU overhead
  • Fast Ethernet MAC/PHY
    • 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
  • Switching Fabric
    • 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
    • Integrates two-way Address-Lookup engine and table for 1K MAC addresses
    • Supports Routing Table/IGMP/VLAN Table access through CPU read/write operation
    • Supports 802.1D Spanning Tree Protocol and 802.1w Rapid Spanning Tree Protocol
  • QoS
    • Supports Quality-of-Service for port-based, 802.1p VLAN and IPv4 TOS/IPv6 COS packets with four priority queues
    • Supports RFC2475 DiffServ-based
  • VLAN
    • Supports up to 3 VLAN groups for port-based VLAN and 16 VLAN entries for 802.1Q tag-based VLAN function
    • Supports Double tagging 802.1Q-in-802.1Q function for WAN access
  • Security
    • 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
  • Multicast
    • Supports GMRP/GVRP/GARP packet snooping
    • Supports IPv4 IGMP and IPv6 ICMP/MLD (Multicast Listener Discovery) Snooping
    • Supports up to 1K Multicast Group (shared with L2 MAC table)
    • Supports eight IGMP Multicast IP address snooping
  • Monitoring
    • Supports RMON group 1,2,3,9 counter (RFC1213)
    • Supports Ethernet-like MIB counter (RFC 1643)
    • Supports Bridge MIB counter (RFC 1493)
    • Egress/Ingress Port Mirroring
    • Sniffer functions
      • Source/Destination Port
      • DA/SA
      • VLAN ID
      • Ethernet Packet Type
      • IPv4/IPv6 Protocol
      • IPv4/IPv6 TCP/UDP Port Number
  • Supports EEPROM Interfaces
  • Single 3.3V power supply with options for 1.8V, 2.5V and 3.3V I/O voltage support
  • Integrates an on-chip voltage regulator requiring only a single power supply of 3.3V
  • Integrates an on-chip oscillator and PLL requiring only a 25MHz crystal to operate
  • Integrates on-chip power-on reset circuit
  • 80-pin E-PAD LQFP RoHS compliant package
  • Operating temperature range: 0°C to +70°C

 Block Diagram


 Selection Guide


 Development Board

AX88782 SMDK2440 Demo Board   Available
 This is an AX88782 SMDK2440 demo board for users to verify AX88782 on SMDK2440 platform with Samsung S3C2440A 32-bit ARM920T CPU. Users can easily connect this demo board onto other embedded systems through the external memory interface.

Technical Documentation

 Product Brief, Product Introduction and Datasheet

AX88782 Product Brief178.7 KB2011-06-16
AX88782 Product Introduction 1 MB2014-08-12
AX88782 Datasheet 3.6 MB2013-11-21
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 Reference Manuals and User Guides

ASIX Multi-Port Ethernet Controller Software Programming Guide  
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ASIX Multi-Port Ethernet Controller EEPROM/Manufacture User Guide  
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AX88782 Hardware Throughput Test Report   
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AX88782 Reliability Report 191.5 KB2009-05-06
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AX88782 RoHS Report   
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AX88782 IEEE 802.3 Compliant Test Reports   
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Hardware Design Documentation

 Reference Schematics

AX88782 SMDK2440 Demo Board Reference Schematic 328.5 KBv1.002009-05-08

 Bill of Materials, Application Notes and Layout Guides

AX88782 SMDK2440 Demo Board BOM File 63.6 KBv1.002009-05-08
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AX88782 Multi-Port Ethernet Controller Application Design Note 761.3 KBv1.042010-04-21
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 PCB Layout, Gerber and IBIS Model

1. You can open the gerber files by running ORACLE's AutoVue Evaluation Revision tool (30 days evaluation date). Please visit ORACLE's web site ( for more details.
2. You can open the PowerPCB PCB layout file 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.
AX88782 SMDK2440 Demo Board Gerber Files 517.3 KB2009-02-20
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AX88782 SMDK2440 Demo Board PCB Layout File (PowerPCB) 328.6 KB2009-03-17
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AX88782 IBIS Model 1.2 MB2010-03-11
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Driver TypeRevision Release DateDescriptionFile Size
Linux Kernel 3.x/2.6.x/2.4.x 1N2P Driver Source v1.4.02013-02-25 For 1 NIC/2 Ports application42.1 KB
uboot 1N2P Driver Source v1.0.02010-12-28 For 1 NIC/2 Ports application12.1 KB


click here for more AX88782 FAQs....
Q0001: How to open the gerber files of AX88782 SMDK2440 demo board?
A0001: You can open the gerber files of AX88782 SMDK2440 demo board by running ORACLE's AutoVue Evaluation Revision tool (30 days evaluation date). Please visit ORACLE's web site ( for more details.

Q0002: How to open the PowerPCB PCB layout file of AX88782 SMDK2440 demo board?
A0002: You can open the PowerPCB PCB layout file of AX88782 SMDK2440 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.

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