General Description
The KSZ8893FQL, a highly integrated single-chip 3 port Fast Ethernet switch is designed for applications with fiber support such as media converter. It provides two 10/100 transceivers with patented mixed-signal low power technology, three media access control (MAC) units, a high-speed non-blocking switch fabric, a Layer-2 managed switch and TS-1000 OAM (Operations, Administration and Management) V2 in a compact solution. Backwards compatible to the TS-1000 (2002) specification, TS-1000 V2 is an OAM sub-layer that provides communication between CO (central office) and CPE (customer premises equipment).

FEATUREs
Integrated 3-Port 10/100 Ethernet Switch
• Three MACs and two PHYs fully compliant with IEEE 802.3u standard
• Non-blocking switch fabric assures fast packet delivery by utilizing an 1K MAC address lookup table and a store-and-forward architecture
• Full duplex IEEE 802.3x flow control (PAUSE) with force mode option
• Half-duplex back pressure flow control
• HP Auto MDI-X for reliable detection of and correction for straight-through and crossover cables with disable and enable option
• Micrel LinkMD® TDR-based cable diagnostics permit identification of faulty copper cabling
• 100Base-FX, 100Base-SX and 10Base-FL fiber support on port 1
• MII interface supports both MAC mode and PHY mode
• RMII interface support with external 50MHz system clock
• 7-wire serial network interface (SNI) support for legacy MAC
• Comprehensive LED Indicator support for link, activity, full/half duplex and 10/100 speed
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APPLICATIONs
• Media Conversion Modules:
    – 10Base-FL <=> 10Base-T
    – 100Base-SX <=> 100Base-TX
    – 100Base-FX <=> 100Base-TX
• FTTx Managed/Unmanaged Media Converters
• Fiber Broadband Gateways