GENERAL DESCRIPTION

The DM9003 is a fully integrated, high-performance, and cost-effective Fast Ethernet switch controller with one general processor bus interface, two port 10M/100Mbps PHYs.

FEATURES

‰ Ethernet Switch with two 10/100Mbps PHYs and general processor bus interface

‰ Processor bus slave architecture

‰ EEPROM interface for power-up configuration

‰ TCP/UDP/IPv4 checksum offload

‰ Support HPAuto-MDIX

‰ IEEE 802.3x Flow Control in Full-duplex mode

‰ Back Pressure Flow Control in Half-duplex mode

‰ Each port supports 4 priority queues by Port-based, 802.1P QoS, and IP TOS priority

‰ Support 802.1Q VLAN up to 16 VLAN groups

‰ Support VLAN ID tag/untag option

‰ Each port supports bandwidth, ingress and egress rate control

‰ Support Broadcast Storming filter function

‰ Support Store and Forward switching approach

‰ Support up to 1K uni-cast MAC addresses

‰ Automatic aging scheme

‰ Support MIB counters for diagnostic

‰ uP data driving capability adjustable

‰ 64-pin LQFP 1.8V internal core, 3.3V I/O with 5V tolerant