Apple 17-INCH manual Intrepid Controller and Buses, Level 2 Cache, Level 3 Cache

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CHAPTER 2

Architecture

Level 2 Cache

The data storage for the L2 cache consists of 256 KB of fast static RAM that is built into the microprocessor chip along with the cache controller and tag storage. The built-in L2 cache runs at the same clock speed as the microprocessor.

Level 3 Cache

The data storage for the L3 cache is 1 MB of DDR SRAM running at a clock speed ratio of 5:1. The tag storage for the L3 cache is built into the microprocessor.

Intrepid Controller and Buses

The Intrepid IC provides cost and performance benefits by combining several functions into a single IC. It contains the memory controller, the PCI bus bridge, the Ethernet and FireWire interfaces, and the AGP interface.

Each of the separate communication channels in the Intrepid IC can operate at its full capacity without degrading the performance of the other channels.

In addition to the buses listed in Table 2-1(page 19), the Intrepid IC also has separate interfaces to the physical layer (PHY) ICs for Ethernet and FireWire, and an IIC (inter-IC control bus) interface that is used for configuring the memory subsystem.

Table 2-1

Buses supported by the Intrepid IC

 

 

Bus

Destinations

Width of data path

Bus clock speed

MaxBus

Microprocessor

64 bits

167 MHz

Memory

System RAM

64 bits

333 MHz

PCI

AirPort Extreme, CardBus, Boot ROM

32 bits

33 MHz

AGP4X

Graphics IC

32 bits

66 MHz

Ultra ATA-100

Hard drive

16 bits

100 Mbps

ATA-33

SuperDrive

16 bits

33 MHhz

The microprocessor and the I/O controller IC are described in their own sections. The following sections describe the other subsystems that are connected to the Intrepid IC.

Intrepid Controller and Buses

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Legacy Document 2003-03-01 © 2003 Apple Computer, Inc. All Rights Reserved.

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Contents 2003-03-01 PowerBook G4 17-inchApple Inc Contents Expansion Features Abbreviations Contents Figures and Tables Removing RAM expansion slot cover Organization of This Document Introduction to PowerBook G4 17-inchIntroduction PowerBook G4 17-inch Features Overview of PowerBook G4 17-inchAppearance 1Front view of the computer Computer Identification Peripheral DevicesSystem Software Open FirmwareReduced Processor Performance Power Saving FeaturesOperating Modes Overview of PowerBook G4 17-inch System Software Block Diagram Block Diagram and BusesMicroprocessor and Caches PowerPC G4 MicroprocessorMain ICs and Buses Bus Destinations Width of data path Intrepid Controller and BusesLevel 2 Cache Level 3 CacheEthernet Controller Boot ROMFireWire Controllers System RAMDMA Support ControllerATA-33 Interface Interrupt SupportUSB Interface Ultra ATA-100 InterfaceSound Circuitry Power ControllerAirPort Extreme Interface CardBus Controller IC VCC USB ConnectorsPin Signal name USB PortsFireWire 400 Connector FireWire PortsUSB Storage Devices Pin Signal name Description FireWire 800 ConnectorTPB R TPA REthernet Port Booting from a FireWire DeviceTarget Disk Mode Pin Signal name Signal definitionRXN Internal ModemData Security AirPort ExtremeAirPort Extreme Hardware Bluetooth TechnologyAirPort Extreme Software Hard Disk Drive Hard Disk Dimensions4Maximum dimensions of the internal hard disk Hard Disk ConnectorPin number Signal name Signal AssignmentsSignal name Signal description ATA Signal DescriptionsMedia type Reading speed maximum Writing speed SuperDrive DVD-R /CD-RWKeyboard TrackpadMedia type Reading speed maximum Keyboard Illustrations Changing the Operation of the Keyboard7Alternate operations of function and control keys Keyboard 8Embedded numeric keypad operation Keyboard Key name Control button Using the Fn KeyUsing the Num Lock Key Function KeysKeypad function Embedded KeypadOther Control Keys Key name Control button F10Picture size Flat-Panel DisplayBlack margins Frame rate Dual Display and Mirror ModeAnalog Monitor Resolutions External MonitorsDVI-I Connector Digital Display Resolutions15Main signals on the DVI-I connector External Video Port Pin number Video output connectorPicture size Pixel depth 512 by 24 bpp Sound Inputs Sound SystemAudio Input Jack Modem Activity Sound SignalsSound Outputs Built-in MicrophoneInternal Speakers Digitizing SoundDevices and Ports Sound System RAM Expansion Slots Accessing the RAM SlotsElectrical Design of DDR RAM SO-DIMMs Mechanical Design of DDR RAM SO-DIMMsDDR Sdram Devices Configuration of DDR RAM SO-DIMMsAddress Multiplexing RAM SO-DIMM Electrical LimitsDevice size CardBus Slot Expansion Features CardBus Slot Apple Technical Notes PowerPC G4 Microprocessor3D Graphics Open Firmware Velocity Engine AltiVecMac OS KitPC Card Manager RAM Expansion ModulesATA Devices FireWire InterfaceUSB Interface Bluetooth Wireless NetworksDigital Visual Interface Supplemental Reference Documents Bluetooth Other Abbreviations Abbreviations and Standard UnitsCD-ROM AsicATA CASMDI ISOJedec LEDUSB SO-DIMMSPD Tmds

17-INCH specifications

The Apple 17-inch model has garnered attention for its impressive balance of performance and portability, making it a popular choice among professionals and creative users alike. Boasting a sleek design, it combines cutting-edge technologies with user-friendly features that enhance productivity and entertainment experiences.

At the heart of the 17-inch display is Apple's Retina technology, which provides stunning visual clarity and vibrant colors. With a resolution that surpasses traditional screens, users can expect crisp text and detailed images, making it an ideal choice for graphic designers, video editors, and anyone who values high-quality visuals. The large screen size creates an immersive experience, especially useful for multitasking, viewing spreadsheets side by side, or editing documents side by side.

Powered by Apple’s latest custom silicon, the 17-inch model delivers remarkable performance. The optimizations in the chip architecture enhance not only processing speeds but also energy efficiency, allowing users to accomplish more without compromising battery life. These advancements in chip technology together with integrated graphics offer smooth performance during intensive tasks such as rendering high-definition graphics or playing demanding games.

The laptop also comes equipped with a robust battery system designed to keep users productive for extended periods. Users can expect several hours of usage on a single charge, ensuring that they can work or enjoy media without the constant need to recharge. Furthermore, fast-charging capabilities minimize downtime, making it convenient for on-the-go professionals.

In terms of connectivity, the 17-inch model offers multiple Thunderbolt and USB-C ports, allowing for quick data transfer and connecting a variety of external devices. This versatility is essential for professionals who may need to hook up to external monitors or utilize peripherals for enhanced functionality.

The built-in audio system features high-fidelity speakers, delivering an outstanding audio experience for music, movies, and video conferencing. The integration of advanced microphones further enhances clarity during calls, making communication seamless.

Overall, the Apple 17-inch laptop stands out as a powerful tool designed for those who demand performance, quality, and flexibility in their devices. With its blend of stunning visuals, powerful processing capabilities, and user-centric features, it remains a strong contender in the market for those seeking a reliable and stylish computing solution.
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