General Description

The DM9801 is a physical-layer, single-chip, low-power transceiver for 1M Home Phoneline Network applications. On the media side, it provides an interface to a Home Phoneline wiring system. The reconciliation layer interfaces to the DM9801 either through an IEEE802.3u subset Media Independent Interface (MII) or a pseudo-standard General Purpose Serial Interface (GPSI). A management interface is provided by MDIO/MDC when operating in MII mode, or a Serial Peripheral Interface bus when operating in GPSI mode.

特性 Features

? 1M Home Phoneline Network physical-layer, single chip transceiver

? Supports the MII including the MDIO/MDC serial management interface

? Supports the GPSI including a SPI serial management interface

? Supports Link Integrity function

? Smart equalizer circuit for 1M receiver

? Supports Patent Pending 4-wire operation

? Supports hardware or software speed select

? Supports Interrupt on change, eliminates management polling

? Flexible built-in LED support for TX Activity, RX Activity and Collision Indication or Activity, Link state and Collision

? Digital PLL circuit using advanced digital algorithm to reduce jitter

? Low-power, high-performance CMOS process

? Available in a small outline 100-pin LQFP

? 3.3V DC power with 5V DC tolerant I/O