91C94 datasheet(1/120 Pages) SMSC | ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM

1 page

LAN91C94

PRELIMINARY

ISA/PCMCIA

Single-Chip Ethernet Controller with RAM

FEATURES

•

ISA/PCMCIA Single-Chip Ethernet

Controller

•

4608 Bytes of On-Chip RAM

•

Supports IEEE 802.3 (ANSI 8802-3)

Ethernet Standards

•

Simultasking

- Early Transmit and Early

Receive Functions

•

Hardware Memory Management Unit

•

Optional Configuration via Serial EEPROM

Interface (Jumperless)

•

Single +5V Power Supply

•

Low Power CMOS Design

•

100 Pin QFP, TQFP and VTQFP Package

Bus Interface

•

Direct Interface to ISA and PCMCIA with No

Wait States

•

Flexible Bus Interface

•

16-Bit Data and Control Paths

•

Fast Access Time (40 ns)

•

Pipelined Data Path

•

Handles Block Word Transfers for Any

Alignment

•

High Performance Chained ("Back-to-

Back") Transmit and Receive

•

Pin Compatible with LAN91C92 (in ISA

mode)

•

Flat Memory Structure for Low CPU

Overhead

•

Dynamic Memory Allocation Between

Transmit and Receive

•

Buffered Architecture, Insensitive to Bus

Latencies (No Overruns/Underruns)

•

Supports Boot PROM for Diskless ISA

Applications

Network Interface

•

Integrates 10BASE-T Transceiver

Functions:

Driver and Receiver

Link Integrity Test

Receive Polarity Detection and

Correction

•

Integrates AUI Interface

•

Implements 10 Mbps Manchester

Encoding/Decoding and Clock Recovery

•

Automatic Retransmission, Bad Packet

Rejection, and Transmit Padding

•

External and Internal Loopback Modes

•

Four Direct Driven LEDs for Status/

Diagnostics

Software Drivers

•

Uses Certified LAN9000 Drivers Which

Operate with Every Major Network

Operating System

•

Software Driver Compatible with LAN91C92

and LAN91C100 (100 Mbps) Controllers in

ISA Mode

•

Software Driver Utilizes Full Capability of 32

Bit Microprocessor

Simultasking is a trademark and SMSC is a registered trademark of Standard Microsystems Corporation

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