VT6103 - Fast Ethernet 10 / 100 PHY / Transceiver

Revision 1.1 April 15, 2002

-ii-

Table of Contents

Technologies, Inc.

We Connect

We Connect

We Connect

We Connect

TABLE OF CONTENTS

REVISION HISTORY .......................................................................................................................................................................I

TABLE OF CONTENTS ................................................................................................................................................................. II

LIST OF FIGURES .........................................................................................................................................................................IV

LIST OF TABLES ...........................................................................................................................................................................IV

PRODUCT FEATURES ................................................................................................................................................................... 1

OVERVIEW....................................................................................................................................................................................... 2

PINOUTS............................................................................................................................................................................................ 3

PIN DIAGRAM ................................................................................................................................................................................ 3

PIN LIST ......................................................................................................................................................................................... 3

PIN DESCRIPTIONS......................................................................................................................................................................... 4

REGISTERS....................................................................................................................................................................................... 7

REGISTER OVERVIEW ................................................................................................................................................................... 7

REGISTER DESCRIPTIONS ............................................................................................................................................................. 9

FUNCTIONAL DESCRIPTION .................................................................................................................................................... 16

GENERAL ..................................................................................................................................................................................... 16

802.3U MII................................................................................................................................................................................... 18

Serial Management Register Access ................................................................................................................................... 18

Serial Management Access Protocol ................................................................................................................................... 18

Preamble Suppression.......................................................................................................................................................... 18

PHY Address Sensing........................................................................................................................................................... 18

Nibble-Wide MII Data Interface......................................................................................................................................... 19

Collision Detect ..................................................................................................................................................................... 19

Carrier Sense ........................................................................................................................................................................ 19

MII Isolate Mode .................................................................................................................................................................. 19

LINK INTEGRITY AND AUTONEGOTIATION ................................................................................................................................20

General .................................................................................................................................................................................. 20

10Base-T Link Integrity Algorithm – 10Mbps .................................................................................................................. 20

100Base-TX Link Integrity Algorithm -100Mbps ............................................................................................................. 20

AutoNegotiation Algorithm ................................................................................................................................................. 20

AutoNegotiation Outcome Indication................................................................................................................................. 20

AutoNegotiation Status ........................................................................................................................................................ 20

AutoNegotiation Enable....................................................................................................................................................... 20

Auto Negotiation Reset ........................................................................................................................................................ 20

Link Indication ..................................................................................................................................................................... 20

ENCODER ..................................................................................................................................................................................... 21

4B5B Encoder – 100 Mbps................................................................................................................................................... 21

Manchester Encoder – 10 Mbps.......................................................................................................................................... 21

DECODER ..................................................................................................................................................................................... 21

4B5B Encoder – 100 Mbps................................................................................................................................................... 21

Manchester Encoder – 10 Mbps.......................................................................................................................................... 21

CLOCK AND DATA RECOVERY .................................................................................................................................................... 22