DM9161EP

The DM9161EP is a 10/100 Mbps Fast Ethernet physical layer TX/FX Single Chip Transceiver for 100BASE-TX 100BASE-FX 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 Media Independent Interface (MII), the DM9161 connects to the Medium Access Control (MAC) layer, ensuring a high inter-operability from different vendors. The DM9161 uses a low power and high performance CMOS process. It contains the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u, including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), Twisted Pair Physical Medium Dependent Sublayer (TP-PMD), 10BASE-TX Encoder/Decoder (ENC/DEC) and Twisted Pair Media Access Unit (TPMAU).

• Fully complies with IEEE 802.3u
• 10Base-T/100Base-TX/FX
• Support auto-negotiation function, compliant with IEEE 802.3u
• Fully integrated physical layer single chip with direct interface to magnetic
• Integrated 10Base-T and 100Base-TX transceiver
• Selectable repeater or node mode
• Far end fault signalling option in FX mode
• Selectable MII or RMII (reduced MII) interface, at he 100BASE-TX
• Selectable GPSI (7-wired) or MII mode at the 10Base-T
• Selectable twisted-pair or fibre mode output
• Selectable full-duplex or half-duplex operation
• MII management interface with maskable interrupt output capability
• Provides loopback mode for easy system diagnostics
• LED status outputs indicate link/activity, speed 10/100 and full-duplex/collision
• Single low power supply of 3.3V with 0.35μm CMOS technology
• Compatible with 3.3 and 5.0V tolerant I/Os

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