The KSZ8081 is a single-supply 10Base-T/100Base-TX Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable. The KSZ8081 is a highly-integrated PHY solution.
Ethernet transceiver MII interface support (KSZ8081MNX) RMII v1.2 Interface support with a 50MHz reference clock output to MAC, and an option to input a 50MHz reference clock (KSZ8081RNB) RMII back-to-back mode support for a 100Mbps copper repeater MDC/MDIO management interface for PHY register configuration Programmable interrupt output LED outputs for link and activity status indication On-chip termination resistors for the differential pairs Baseline wander correction HP Auto MDI/MDI-X to reliably detect and correct straight-through and crossover cable connections with disable and enable option Auto-negotiation to automatically select the highest linkup speed (10/100Mbps) and duplex (half/full)
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