MX98726EC中文資料????????????旺宏電子數(shù)據(jù)手冊PDF規(guī)格書

Introduction

MX98726EC ( Generic MAC , or GMAC ) is a cost effective solution as a generic single chip 10/100 Fast Ethernet controller. It is designed to directly interface 80188, 80186 ( host ) without glue logic. Two types of memory sharing schemes are supported, i.e. interleaved and shared mode to support a variety of applications. Single chip solution will help reduce system cost not only on the components but also the board size. Full NWAY function with 10/100 tranceiver will ease the field installation, simply plug the chip in and it will connect itself with the best protocol available.

特性 Features

? Direct interface to 80188/186 up to 40Mhz.

? Integrated 10/100 TP tranceiver on chip to reduce overall cost

? Optional MII interface for external tranceiver.

? Fully comply to IEEE 802.3u spec.

? Best fit in network printer and hub/switch management application

? A local DMA channel between on-chip FIFOs and packet memory

? Shared memory architecture allow host and MX98726EC to use only one single SRAM

? Host DMA can share packet memory with local DMA with simple hand shake protocol for x188/186 type of processor

? Supports proprietary local DMA channel to share packet memory

? Support bus size configuration:

- CPU : 8 bits, SRAM: 8 bits

- CPU : 16 bits, SRAM: 8/16 bits

? Flexible packet buffer partition and addressing space for 32k, 64k up to 512K bytes

? NWAY autonegotiation function to automatically set up network speed and protocol

? 3 loop back modes for system level diagnostics

? Rich on-chip register set to support a wide variety of network management functions

? Support 64 bits hash table for multicast addressing

? Support software EEPROM interface for easy upgrade of EEPROM content

? Support 1K bits and 4K bits EEPROM interface

? 5V CMOS in 128 PQFP package for minimum board size application