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AX88760 Product Introduction

1. Introduction

The AX88760 is a high performance and highly integrated USB/Ethernet and USB/USB

connectivity solution which contains an USB 2.0 hub, three downstream USB 2.0 transceivers, an

upstream USB 2.0 transceiver, a 10/100M Ethernet PHY, a 10/100M Ethernet MAC, a EEPROM

controller, and a 24KB SRAM. The AX88760 is targeted for many applications such as desktops,

notebook PC’s, Ultra-Mobile PC’s, docking stations, game consoles, multifunction printers,

digital-home appliances, and any embedded system using a standard USB port.

The AX88760’s integrated USB hub is fully compliant with USB 2.0 Specification and

supports Low-Speed, Full-Speed, and High-Speed downstream devices on all of the enabled

downstream ports. The AX88760 implements multiple TT architecture that provide dedicated TT

to each downstream (DS) ports, which guarantee maximum bandwidth for each connected device

when operating multiple mixed-speed peripherals device. The AX88760 provides full hub

features such as (1) One suspend LED indicator and three downstream port status LED indicators,

(2) Individual/Gang mode power management scheme and over-current detection for downstream

ports, and (3) Non-removable declaration configured by I/O pin during power-on reset…etc

The AX88760 integrates on-chip Fast Ethernet MAC and PHY, which is IEEE802.3 10Base-

T and IEEE802.3u 100Base-TX compatible, and 24KB embedded SRAM for packet buffering to

accommodate high bandwidth applications. The AX88760 has a wide array of features including

support for HP Auto-MDIX, Wake-on-LAN power management, and IEEE 802.3x and

backpressure flow control.

This document provides an overview of AX88760 product.

Figure 1. AX88760 Block Diagram

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