PATHHardware Documentation > PowerBook G3 Series 1999

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Preface About This Developer Note

• Contents of This Note

Chapter 1 Introduction

• Features
• Peripheral Devices
• Compatibility Issues
• Earlier PowerBook G3 Series Computers
• Expansion Bay Modules
• RAM Expansion Modules
• USB Ports and Devices
• System Software
• Machine Identification

Chapter 2 Architecture

• Processor Module
• G3 Microprocessor
• Backside Cache
• Bus Clock Speeds
• Memory Controller and PCI Bridge
• Main Logic Board
• I/O Controller IC
• ZiVA PC DVD Decoder
• Ethernet PHYTER IC
• USB Controller IC
• Video Display Subsystem
• Power Management Unit
• Sound Interface IC
• CardBus Controller IC
• Modem Module

Chapter 3 Devices and Ports

• USB Ports
• USB Connectors
• Transfer Types Supported
• USB Compatibility Issues
• Serial Port Compatibility
• Macintosh-To-Macintosh Connections
• USB Storage Devices
• USB Controller
• External SCSI Port
• Hard Disk Drive
• Hard Disk Dimensions
• Hard Disk Connector
• Signal Assignments
• ATA Signal Descriptions
• Trackpad
• Keyboard
• Changing the Operation of the Keyboard
• Keyboard Illustrations
• Fn Key
• Num Lock Key
• Function-keys Checkbox
• Function Keys
• Embedded Keypad Keys
• Other Alphanumeric Keys
• Control Keys
• Ethernet Port
• Internal Modem
• Infrared Communication Link
• Flat Panel Display
• External Monitors
• Monitors and Picture Sizes
• Monitor Connector
• Monitor Adapter
• External Video Connector
• Sound System
• Sound Inputs
• Built-in Microphone
• External Sound Input
• Expansion Bay Sound Input
• CardBus Sound Input
• Sound Outputs
• External Sound Output
• Internal Speakers

Chapter 4 Expansion Features

• Expansion Bay
• Mechanical Design of Expansion Bay Modules
• Expansion Bay Connectors
• Signals on the Expansion Bay Connector
• Expansion Bay Signal Definitions
• Unused IDE Signals on the Expansion Bay Connector
• Power on the Expansion Bay Connector
• User Installation of an Expansion Bay Module
• Sequence of Control Signals
• Guidelines for Developers
• RAM Expansion Slots
• Mechanical Design of RAM SO-DIMMs
• Electrical Design of RAM SO-DIMMs
• SDRAM Devices
• Configuration of RAM SO-DIMMs
• Address Multiplexing
• RAM SO-DIMM Electrical Limits
• CardBus Slot

Chapter 5 System Software

• The New Approach
• What Has Changed
• Features of the New Approach
• Performance
• RAM Footprint
• User Experience
• Data Structures and Files
• Compatibility
• Boot ROM Contents
• POST Code
• Open Firmware
• Mac OS 'ndrv' Drivers
• RTAS
• Mac OS ROM Image File Contents
• Open Firmware Script
• Trampoline Code
• Mac OS ROM Image
• NewWorld Boot Process
• What Is Different
• Interrupt Handling
• Outmoded Resources
• RAM Footprint
• RTAS
• NV-RAM
• NanoKernel
• Startup Disk Control Panel
• Open Firmware and the Device Tree
• Open Firmware and Startup Devices
• Interrupt Layout
• Machine Identification

Appendix A Abbreviations

Related Information

• PowerPC G3 Microprocessor
• Mac OS
• ATA Devices
• USB Devices
• Open Firmware