HyperTransport System Architecture 1st Edition by Jay Trodden, Don Anderson, MindShare  9780321168450 0321168453

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ISBN 10: 0321168453
ISBN 13: 9780321168450 
Author: Jay Trodden, Don Anderson, MindShare 

PCI was originally designed to be used in a wide range of systems from notebooks to high-end servers. There are now a wide range of new buses being developed to replace PCI, which enable cost-savings, performance enhancement, and specialized features. HyperTransport is a new bus that deals specifically with chipset interconnect, the high-speed link between the memory and IO controller chips. HyperTransport Architecture allows hardware and low-level software designers, engineers, and technicians to get up to speed quickly on this new bus protocol, without having to wade through specifications and white papers. The book organizes topics in a logical, tutorial format which quickly guides the reader through the major features of the specification. Numerous diagrams and examples reduce the more complicated concepts to manageable proportions and allow the reader to see the important relationships along the way.

HyperTransport System Architecture 1st Table of contents:

Part One: Overview of HyperTransport

Chapter 1: Introduction to HyperTransport

Background: I/O Subsystem Bottlenecks.

Server Or Desktop Computer: Three Subsystems

CPU Speed Makes Other Subsystems Appear Slow

Multiple CPUs Aggravate The Problem..

DRAM Memory Keeps Up Fairly Well.

I/O Bandwidth Has Not Kept Pace

This Slows Down The Processor

It Also Hurts Fast Peripherals.

Reducing I/O Bottlenecks

The Shared Bus Approach.

A Shared Bus Runs At Limited Clock Speeds.

A Shared Bus May Be Host To Many Device Types

Backward Compatibility Prevents Upgrading Performance.

Special Problems If The Shared Bus Is PCI

A Note About PCI-X

The Point-to-Point Interconnect Approach.

A Note About Connectors.

What HT Brings.

Key Features Of HyperTransport Protocol

The Cost Factor.

Networking Support..

Chapter 2: HT Architectural Overview

Transfer Types Supported.

Address-Based Semantics.

Data Transfer Type and Transaction Flow.

Programmed I/O Transfers

DMA Transfers…

Peer-to-Peer Transfers

HT Signals

Link Packet Transfer Signals

Link Support Signals

Scalable Performance

Data Widths

Clock Speeds.

Extending the Topology.

Packetized Transfers.

Control Packets.

Information packet (4 bytes)

Request packet (4 or 8 bytes).

Response packet (4 bytes).

Data Packets.

HyperTransport Protocol Concepts.

Channels and Streams

Virtual Channels

I/O Streams

Transactions (Requests, Responses, and Data).

Transaction Requests.

Transaction Responses.

Transaction Types.

Sized Read Transactions

Sized Write Transactions

Non-Posted Sized Writes.

Posted Sized Writes.

Flush

Fence

Atomic

Broadcast.

Managing the Links.

Flow Control

Initialization and Reset.

Configuration

Error Detection and Handling

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Jay Trodden,Don Anderson,MindShare,HyperTransport