[ADMtek Incorporate]

Overview

ADM6308, a single chip, is a 10/100Mbps eight-port stand-alone switching controller with built-in data buffer memory which provides low cost and simple solution though a high integration design. Eight Reduced MII interfaces are designed for 10BASE/100BASE ports. MAC controller, switch engines and data buffer memory are built-in. The chip can fit to desktop or SOHO applications, and each 10/100M port directly connects either 10BASE or 100BASE devices. Additionally, ADM6308 breaks the distance limitation of 10BASE or any class 100BASE repeaters, and increases throughput.

特性 Features

? Non-blocking eight-port 10/100M switching controller with MAC controller and switching engine included low cost and a simple solution for 100BASE-TX, 100BASE-FX, and 10BASE applications.

? Configurable 10/100BASE Reduced MII interfaces and 1MII+ 7RMII mode provided.

? The single clock input, 50M, for RMII and system

? Speed auto negotiation function for all ports

? Store-and- forward operation support.

? Full line speed capability of 14880 packet/sec for 10M and 148810 packet/sec for 100M, with no HOL blocking.

? Broadcast storming prevention

? Support 4 groups port-based VLAN.

? Full-duplex (IEEE802.3x) and three-way half-duplex flow control (Back pressure).

? Data buffer SSRAM embedded,

? CoS support: Port-based, VLAN tag, TCP/IP TOS/DS.

? Intelligently back-pressure and flow control turned on/off in the port with priority frames

? Buffer management included.

? 93C46 EEPROM interface or Dynamic configured by 8051

? Buffer full and faulty LED provided.

? Bridging functions such as:

◆ Local MAC address filtering.

◆ CRC or direct mapping hashing schemes for better address coverage.

◆ Short routing decision time.

◆ Aging function included with configurable aging time.

◆ Embedded 1K entries of address table.

? Low power 2.5 V CMOS technology with 3.3V tolerance I/O

? 100-pins Plastic Quad Flat Package.