General Description
The DM9101 is a physical-layer, single-chip, low-power transceiver for 100Base-TX, and 10Base-T operations. On the media side, it provides a direct interface either to Unshielded Twisted Pair Category 5 Cable (UTP5) for 100Base-TX Fast Ethernet, or UTP5/UTP3 Cable for 10Base-T Ethernet. Through the IEEE 802.3u Media Independent Interface (MII), the DM9101 connects to the Medium Access Control (MAC) layer, ensuring a high inter operability among products from different vendors.

FEATUREs
• 10/100Base-TX physical-layer, single-chip transceiver
• Compliant with IEEE 802.3u 100Base-TX standard
• Compliant with ANSI X3T12 TP-PMD 1995 standard
• Compliant with IEEE 802.3u Auto-negotiation protocol for automatic link type selection
• Supports the MII with serial management interface
• Supports Full Duplex operation for 10 and 100Mbps
• High performance 100Mbps clock generator and data recovery circuitry
• Adaptive equalization circuitry for 100Mbps receiver
• Controlled output edge rates in 100Mbps
• Supports a 10Base-T interface without the need for an external filter
• Provides Loop-back mode for system diagnostics
• Includes Flexible LED configuration capability
• Digital clock recovery circuit using advanced digital algorithm to reduce jitter
• Low-power, high-performance CMOS process
• Available in both a 100 pin LQFP and a 100 QFP package