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AMD-762

AMD-762™ System Controller

Advanced Micro Devices 

Preliminary Information

AMD-762™ System Controller Data Sheet

24416C—December 2001

This document describes the features and operation of the

AMD-762 system controller. For a description of the AMD-766

peripheral bus controller, see the AMD-766™ Peripheral Bus

Controller Data Sheet, order# 23167. For a description of the

AMD-768 peripheral bus controller, see the AMD-768™

Peripheral Bus Controller Data Sheet, order# 24467. Key features

of the AMD-762 system controller are provided in this section.

1.1 AMD Athlon™ System Buses

The AMD Athlon system buses have the following features:

n High-performance point-to-point system bus topology

n Source-synchronous clocking for high-speed transfers

n 200- or 266-MHz, split-transaction AMD Athlon system bus

interface

n 1.6 Gbytes/s peak data transfer rates at 100/200 MHz,

2.1 Gbytes at 133/266 MHz

n Large 64-byte (cache line) data burst transfers

1.2 Integrated Memory Controller

The integrated memory controller has the following features:

n The AMD-762 system controller supports the following

concurrencies:

• Processor-to-main-memory with PCI-to-main-memory

• Processor-to-main-memory with AGP-to-main-memory

• Processor-to-PCI with PCI-to-main-memory or

AGP-to-main-memory

n Memory Error Correcting Code (ECC) support

n Supports the following DRAM:

• Supports 64-Mbit, 128-Mbit, 256-Mbit, and 512-Mbit

technology

• 64-bit data width, plus 8-bit ECC paths

• Flexible row and column addressing

n Supports up to 4 Gbytes of memory

n Four open pages within one CS (device selected by chip

select)

2

Features

Chapter 1

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