[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.

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.