Introduction to 17-inch PowerBook G4 Developer Note 9 Organization of This Document 9 Chapter 1 Overview of 17-inch PowerBook G4 11 New Features 11 All Features 12 Appearance 14 Peripheral Devices 15 System Software 16 Open Firmware 16 Computer Identification 16 Power Management 16 Chapter 2 Architecture 19 Block Diagram and Buses 19 Block Diagram 19 Main IC and Buses 20 Microprocessor and Caches 21 PowerPC G4 Microprocessor 21 Level 2 Cache 21 Intrepid 2 Controller Functions and Buses 21 System RAM 22 Boot ROM 22 FireWire Controllers 22 Ethernet Controller 23 Video Display Subsystem 23 DMA Support 24 Interrupt Support 24 USB Interface 24 Ultra DMA ATA-100 Interface

24 Modem Support 24 Audio Circuitry 25 Power Controller 25 Sudden Motion Sensor 26 AirPort Extreme and Bluetooth Module 26 PC Card/CardBus Controller IC 26 PCI USB 2.0 Controller 26 Chapter 3 Devices and Ports 29 USB 2.0 Ports 29 USB Connectors 29 USB Class Drivers 30 FireWire Ports 30 FireWire 400 Connector 31 FireWire 800 Connector 32 FireWire Device Programming 33 Target Disk Mode 33 Ethernet Port 34 Internal Modem 35 AirPort Extreme 36 Data Security 36 AirPort Extreme Hardware 37 AirPort Extreme Software 37 Bluetooth 2.0 with EDR 37 Hard Disk Drive 38 Hard Disk Dimensions 38 Hard Disk Connector 39 SuperDrive 42 Combo Drive 43 Trackpad 44 Keyboard 44 Changing the Operation of the Keyboard 45 Flat-Panel Display 50 External Monitors 51 Dual Display and Mirror Mode 51 Analog Monitor Resolutions 52 Digital Display Resolutions 52 DVI-I Connector 53 External Video Port 55 Audio System 56 Optical Digital Audio 57 Audio Inputs 57 Audio Outputs 59 Digitizing Audio 60 Chapter 4 Expansion Features 61 RAM Expansion Slots 61 Accessing the RAM Slots 61 Mechanical Design of DDR2 RAM SO-DIMMs 62 Electrical Design of DDR2 RAM SO-DIMMs 62 RAM SO-DIMM Electrical Limits 64 PC Card/CardBus Slot 65 Appendix A Supplemental Reference Documents 67 Apple Technical Notes 67 3D Graphics 67 PowerPC G4 Microprocessor 67 Velocity Engine 68 Mac OS X 68 IOKit 68 Open Firmware 68 RAM Expansion Modules 69 ATA Devices 69 USB Interface 70 FireWire Interface 70 Digital Visual Interface 70 Wireless Networks 70 Bluetooth

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