The ADM6993/X is a single chip integrating two 10/100 Mbps MDIX TX/FX transceivers, a three-port 10/100M Ethernet L2 switch controller, and features converter mode to meet demanding applications, including Fiber-to-Ethernet media converters, 2/3 port Ethernet switches, VoIP gateways, and NAT routers. The ADM6993X is the environmentally friendly “green” package version.
The ADM6993/X supports priority features on Port-Base priority, VLAN TAG priority and IP TOS precedence checking at individual ports. This is done through a small low-cost micro controller to initialize or on-the-fly to configure. The priority of packets can be tagged based on TCP port number for the multi-media application.


Feature List:

    * 3-port10/100M switch integrated with a 2-port PHY (10/100TX and 100FX ) and 3rd MAC port as GPSI/MII/RMII/HDLC
    * Provides TX<-->FX Converter modes with faulted propagation and redundant capability by using of two ADM6993
    * Short latency on the converter mode
    * Built-in data buffer 6Kx64bit SRAM
    * Up to 2k MAC Unicast addresses with a 4-way associative hashing table
    * MAC address learning table with aging function
    * Two queues per port for QoS purposes
    * Port-base, 802.1p and TCP/IP ToS priority
    * Store & forward architecture
    * 802.3x flow control for full duplex and back-pressure for half duplex in case the buffer is full
    * Supports Auto-Negotiation
    * Packet lengths up to 1536 bytes
    * Broadcast storming filter
    * Port-base VLAN/tag-base VLAN
    * 16 entries of packet classification and marking or filtering for TCP/UDP Port Numbering, IP Protocol ID and Ethernet Type
    * Serial Management Interface for low-end CPUs
    * Provides port status for remote agent monitoring
    * Provides smart counters for port statistics reporting
    * 128 PQFP packaging with 2.5 V/3.3 V power