KSZ8993FL

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 100BASETX conversion in the FTTx market.

The KS8993F provides remote loop back and OAM (Operation, Administration and Maintenance) to manage subscriber access network from carrier center side to terminal side.

The KS8993F supports advanced features such as rate limiting, force flow control and link transparency.

The KS8993F with built-in Layer 2 switch capability will filter packets and forward them to valid destination. It will discard any unwanted frames and frames with invalid destination.

The KS8993FL is the single supply version with all the identical rich features of the KS8993F.

• 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)
• Supports OAM sub-layer which conforms to TS-1000 specification from TTC (Telecommunication Technology Committee)
• Sends and receives OAM frames to Center or Terminal side
• Loop back mode to support loop back packet from Center side to Terminal side
• Far-end fau