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Power Mac G4 Developer Note
Contents
Figures and Tables
Preface
About This Note
Chapter 1
Introduction
New Features
Hardware Features
Features of the Enclosure
System Software
ROM In RAM
Computer Identification
Dual Processor Support
CPU Power Modes
Velocity Engine Acceleration
Chapter 2
Architecture
Block Diagram and Buses
Processor Module
PowerPC G4 Microprocessor
Level2 Cache
Dual Processors
Uni-N Bridge and Memory Controller
Processor Bus
Main Memory Bus
Accelerated Graphics Port Bus
PCI Buses and Bridge
Boot ROM
Ethernet Controller
FireWire Controller
KeyLargo I/O Controller
DMA Support
Interrupt Support
USB Interface
Ultra DMA/66 Interface
Enhanced IDE Interface
Modem Slot Support
Wireless LAN Module
Sound IC Support
Power Controller
AGP Graphics Card
Graphics Controller IC
Display Memory
Chapter 3
Input and Output Devices
USB Ports
USB Connectors
USB Features
Waking Up From Sleep
Booting from USB Storage Devices
FireWire Ports
FireWire Connector
FireWire Device Programming
Booting from a FireWire Device
Target Disk Mode
Ethernet Port
Disk Drives
Ultra DMA/66 Hard Disk
DVD-ROM Drive
DVD-RAM Drive
Optional Zip Drive
Optional Ultra SCSI 160 Drive
Internal Modem
AirPort Card Wireless LAN Module
Data Security
Hardware Components
Software Components
Keyboard
Keyboard Features
Keyboard Layout
Programming the Function Keys
Multi-Media Control Keys
Keyboard and USB
Mouse
Sound System
Sound Output Jack
Sound Input Jack
Digitizing Sound
Video Monitor Ports
Digital Monitor Connector
Digital Display Resolutions
Analog Monitor Connector
Monitor Adapter
Analog Display Resolutions
Chapter 4
Expansion
RAM Expansion
DIMM Specifications
Mechanical Specifications
Electrical Specifications
DIMM Configurations
RAM Addressing
PCI Expansion Slots
Appendix A
Supplemental Reference Documents
PowerPC G4 Microprocessor
Velocity Engine (AltiVec)
Multiprocessing Services
3D Graphics
Mac OS 9
ROM-in-RAM Architecture
Open Firmware
RAM Expansion Modules
ATA Devices
Ultra SCSI Interface
USB Interface
FireWire Interface
Digital Visual Interface
Appendix B
Conventions and Abbreviations
Typographical Conventions
Abbreviations
© 2000 Apple Computer, Inc. – (Last Updated 03 Aug 00)
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