General Description
●The DM9161A is a physical layer, single-chip, and 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 Media Independent Interface (MII), the DM9161A connects to the Medium Access Control (MAC) layer, ensuring a high inter operability from different vendors.
●Features
●Fully comply with IEEE 802.3 / IEEE 802.3u 10Base-T/100Base-TX, ANSI X3T12 TP-PMD 1995 standard
●Support MDI/MDI-X auto crossover function (Auto-MDI)
●Support Auto-Negotiation function, compliant with IEEE 802.3u
●Fully integrated Physical layer transceiver On-chip filtering with direct interface to magnetic transformer
●Selectable repeater or node mode
●Selectable MII or RMII (Reduced MII) mode for 100Base-TX and 10Base-TX. Selectable MII or GPSI
●(7-Wired) mode for 10Base-T
●Selectable full-duplex or half-duplex operation
●MII management interface with maskable interrupt output capability
●Provide Loopback mode for easy system diagnostics
●LED status outputs indicate Link/ Activity, Speed10/100 and Full-duplex/Collision. Support Dual-LED optional control
●Single low power Supply of 3.3V with an advanced CMOS technology
●Very Low Power consumption modes:
●Power Reduced mode (cable detection)
●Power Down mode
●Selectable TX drivers for 1:1 or 1.25:1 transformers for additional power reduction. 1: 1 transformers only when HP Auto-MDIX Enable .
●Compatible with 3.3V and 5.0V tolerant I/Os
●48-pin LQFP
