MX98224EC

( DataSheet : www.DataSheet4U.com ) PRELIMINARY MX98224EC 24-port Dual-Speed Ethernet Switch Controller FEATURES l l l l l l l l Single chip 24-port 10/100M wire speed Ethernet switching controller with all memory embedded Integration of 24-port dual speed, full/half duplex capable Media Access Controllers (MACs) with RMII interfaces Support IEEE 802.3x compliant flow control for FDX and back-pressure flow control for HDX Auto-negotiation through MDC/MDIO Support source/destination MAC address lookup and aging within built-in storage of 8K MAC address (4K entries each entry table) Self address learning, forwarding, and filtering schemes Store-and-Forward switching operation 12-group port base VLAN with port overlapping l l l l l l l l l l l IEEE 802.1q CoS and two priority queues support based on port, tagging, and TOS configurations Address table and PHY register access allowed through CPU processor Dynamic buffer management No head-of-line blocking system support Power on self diagnostic Serial EEPROM (93C46) interface for autoconfiguration Broadcast storm prevention Serial CPU interface support for system configuration required Three alter/self-diagnostic LED interface CMOS, 1.8/3.3V I/O tolerance 208 PQFP package GENERAL DESCRIPTION MX98224EC is a stand-alone 10/100M Ethernet switch controller with SRAM embedded which saves 2-3 extra 64KX64 SRAM cost. Any standalone desktop or enterprising Ethernet switches can be achieved by simply combining MX98224EC and quad/oc...