AM79C983A 데이터 시트보기 (PDF) - Advanced Micro Devices

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AM79C983A

Integrated Multiport Repeater 2 (IMR2™)

Advanced Micro Devices 

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TABLE OF CONTENTS

DISTINCTIVE CHARACTERISTICS .................................................................................................... 1

GENERAL DESCRIPTION................................................................................................................... 1

BLOCK DIAGRAM ............................................................................................................................... 3

RELATED AMD PRODUCTS............................................................................................................... 4

CONNECTION DIAGRAM .................................................................................................................... 5

LOGIC SYMBOL ................................................................................................................................... 6

LOGIC DIAGRAM ................................................................................................................................ 6

ORDERING INFORMATION................................................................................................................. 7

Standard Products .......................................................................................................................... 7

PIN DESIGNATIONS .......................................................................................................................... 12

PIN DESCRIPTION............................................................................................................................ 13

Pseudo AUI Pins........................................................................................................................... 13

RAUI Port Pins.............................................................................................................................. 13

AUI Pins ........................................................................................................................................ 13

Expansion Bus Pins ...................................................................................................................... 13

Packet Report Port........................................................................................................................ 14

Microprocessor Interface .............................................................................................................. 15

LED Interface ................................................................................................................................ 15

Miscellaneous Pins ....................................................................................................................... 15

Transceiver Device Interface ........................................................................................................ 15

FUNCTIONAL DESCRIPTION............................................................................................................ 17

Overview ....................................................................................................................................... 17

Basic Repeater Functions............................................................................................................. 17

Repeater Function .................................................................................................................. 17

Signal Regeneration ............................................................................................................... 17

Jabber Lockup Protection ....................................................................................................... 17

Collision Handling ................................................................................................................... 17

Fragment Extension ............................................................................................................... 17

Auto Partitioning/Reconnection .............................................................................................. 17

Basic Management Functions....................................................................................................... 18

Repeater Management ........................................................................................................... 18

RMON .................................................................................................................................... 18

Packet Reports ....................................................................................................................... 18

Detailed Functions ........................................................................................................................ 22

Reset ...................................................................................................................................... 22

Hardware Reset ............................................................................................................... 22

Software Reset ................................................................................................................ 22

Expansion Bus ....................................................................................................................... 22

Synchronous Mode Operation ......................................................................................... 23

Asynchronous Mode Operation ....................................................................................... 24

Packet Statistics ..................................................................................................................... 24

Packet Report Port........................................................................................................... 24

RAUI Port......................................................................................................................... 25

Error Packet Statistics ............................................................................................................ 26

Transceiver Interface .................................................................................................................... 26

PAUI Ports .............................................................................................................................. 26

QuIET Device Control and Status Data Interface ................................................................... 26

QuIET Device Control and Status Data Interface Operation ........................................... 26

Control and Status for Non-QuIET Transceivers ............................................................. 27

Visual Status Monitoring (LED) Support ....................................................................................... 27

Using AUI/RAUI for 10BASE-T Ports ..................................................................................... 28

Intrusion Protection ....................................................................................................................... 28

Timer Values .......................................................................................................................... 29

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Am79C983A

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