CS8920A中文資料凌云邏輯數(shù)據(jù)手冊PDF規(guī)格書

DESCRIPTION

The CS8920A is a low-cost Ethernet LAN Controller optimized for Industry Standard Architecture (ISA) Personal Computers. Its highly-integrated design eliminates the need for costly external components required by other Ethernet controllers.

FEATURES

■ Single-Chip IEEE 802.3 Ethernet Controller with Direct ISA-Bus Interface

■ Implements Industry-Standard Plug and Play

■ Full Duplex Operation

■ Auto-Negotiation of Full and Half duplex Modes

■ Recognizes Received Magic Packet? Frames and Requests the Processor to Power Up

■ Supported by Complete Family of Device Drivers

■ Efficient PacketPage? Architecture Operates in I/O and Memory Space, and as DMA Slave

■ On-Chip RAM Buffers Transmit & Receive Frames

■ 10BASE-T Port with Internal Analog Filters

■ AUI Port for 10BASE2, 10BASE5 and 10BASE-F

■ Programmable Receive Features:

— StreamTransfer? for Reduced CPU Overhead

— Auto-Switch Between DMA and On-Chip Memory

— Early Interrupts for Frame Pre-Processing

■ Four LED Drivers for Link Status, Full Duplex, and LAN Activity

■ Small 144-pin TQFP package, and minimal external components (transformer, crystal and optional EEPROM)