Origin™ and Onyx2™ Theory of Operations Manual
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Origin^™ and Onyx2^™ Theory of Operations Manual

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Table of Contents

About This Guide

References and Source Material
Typographical Conventions
For More Information
Comments and Corrections

1. Overview of the Origin Family Architecture

Origin200
Origin2000
What Makes the Origin2000 System Different
Scalability and Modularity
System Interconnections
Distributed Shared Address Space (Memory and I/O)
System Bandwidth

2. Origin Family Boards

Node Board
XIO Protocol and Devices
Router Board
Midplane Board
BaseIO Board
MediaIO (MIO) Board
Crosstown Board
Origin200 Mother and Daughter Boards

3. Origin Family ASICs

Hub ASIC
Router ASIC
Crossbow (XBOW) ASIC
Bridge ASIC
IOC3 ASIC
LINC ASIC

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