General Description
The Micrel KS8993F is the industry’s first single chip Fast Ethernet Media Converter with built-in OAM functions. The KS8993F integrates three MACs, two PHYs, OAM, frame buffer and high performance switch into a single chip. It is ideal for use in 100BASE-FX to 10BASE-T or 100BASE-TX conversion in the FTTx market.

Features
• First single-chip 10BASE-T/100BASE-TX to 100BASE-FX media converter with TS-1000 OAM
• Integrated 3-Port 10/100 Ethernet Switch with 3 MACs and 2 PHYs
• Unique User Defined Register (UDR) feature brings OAM to low cost/complexity nodes
• Automatic MDI/MDI-X crossover with disable and enable option
• Non-blocking switch fabric assures fast packet delivery by utilizing an 1K MAC Address lookup table and a store-and-forward architecture
• Comprehensive LED indicator support for link, activity, full/half duplex and 10/100 speed
• Full complement of MII/SNI, SPI, MIIM, SMI and I2C interfaces
• Low Power Dissipation:< 800mW (includes PHY transmit drivers)