General Description

DAVICOM’s DM9161B is a physical layer, single-chip, and low power 100BASE-TX/10BASE-T transceiver specifically designed for consumer electronics, industrial and enterprise applications. For the media usage, 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), DM9161B not only connects the Medium Access

Control (MAC) layer but also ensur a high inter operability from different vendors.

特性 Features

Fully comply with IEEE 802.3 / IEEE 802.3u 10Base-T/100Base-TX, ANSI X3T12 TP-PMD 1995 standard

Support HP MDI/MDI-X auto crossover function(HP Auto-MDIX)

Support Auto-Negotiation function, compliant with IEEE 802.3u

Fully integrated Physical layer transceiver On-chip iltering 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

Lower 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

Pin to pin Compatible with DM9161A.

DSP architecture PHY Transceiver.

48-pin LQFP 0.18um process