AMD-762 datasheet(3/122 Pages) AMD

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AMD-762 Datasheet(PDF) 3 Page - Advanced Micro Devices

No. de pieza	AMD-762

Descripción Electrónicos	System Controller

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Fabricante Electrónico	AMD [Advanced Micro Devices]

Página de inicio	http://www.amd.com

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Table of Contents

iii

24416C—December 2001

AMD-762™ System Controller Data Sheet

Preliminary Information

Contents

Revision History

Features

1.1

AMD Athlon™ System Buses

. . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2

Integrated Memory Controller . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3

PCI Bus Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4

AGP Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.5

Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Functional Operation

2.1

Processor Interface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1.1 Out of Order, Split Transaction . . . . . . . . . . . . . . . . . . . 7

2.1.2 Point-to-Point, Source Synchronized . . . . . . . . . . . . . . . 8

2.1.3 Push-Pull Compensation . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2

Memory Interface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 DRAM Refresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2.2 DDR Data Strobes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3

PCI Bus Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3.1 Memory Coherency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.2 PCI Arbitration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Legacy Mode—Single PCI Bus Southbridge . . . . . . . . . . . . . 16

Southbridge with an Integrated PCI-PCI Bus Bridge

. . . . . 17

Arbitration Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.3 PCI Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.4 PCI Parity/ECC Errors . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.5 PCI Accesses by an Initiator . . . . . . . . . . . . . . . . . . . . . 19

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