AMD

2

Am79C100

BLOCK DIAGRAM

16511B-1

Polarity

Detection and

Auto Correction

Line Receiver

and

Smart Squelch

Link Test

State Machine

Line Driver

and

Predistortion

Collision and

Loopback

Control

Line Driver

Line Driver

Jabber

Control

LED Driver Logic

Voltage

Controlled

Oscillator

CI+

CI–

DI+

DI–

PRDN/RST

REXT

TEST1

TEST2

TXD+

TXD–

TXP+

TXP–

RXD+

RXD–

DO+

DO–

XMT

COL

RCV

LNKST

SQE TEST

RXPOL

LRT

Line Receiver

and Squelch

Circuit

Attachment

Unit Interface

(AUI)

Twisted-Pair

Interface

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Hardware Implemented Management Information Base