Motorola 6806800C08B manual NCS Directors NetPlane Core Services

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NCS Directors	NetPlane Core Services

A director communicates with Node Directors that are located on blades in a system. Node Directors handle node-scoped activities such as messaging with the central Director or with the local NCS agent.

The NCS agent makes service capabilities available to clients such as customer applications, by way of shared linkable libraries that expose well defined APIs.

The following figure illustrates Directors and their interaction with other NCS subparts.

Figure 2-3 NCS Directors

The following NCS Directors exist in an NCS system:

zAvailability Director

zCheckpoint Director

zCluster Fault Director

zGlobal Lock Director

zHPI Chassis Director

zInterface Director

zMessage Queue Director

A more detailed description of these Directors will be given in the description of the respective NCS service later in this manual.

NetPlane Core Services Overview User’s Guide (6806800C08B)

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Contents NetPlane Core Services Overview Trademarks Contents NetPlane Core Services Overview User’s Guide 6806800C08B ContentsList of Tables Page Avantellis Main Software Components List of FiguresPage Overview of Contents About this ManualAbbreviations HPM About this Manual Abbreviation DefinitionConventions Notation DescriptionBold Comments and Suggestions Summary of ChangesAbout this Manual Notation Description Part Number Edition DescriptionAvantellis 3000 Series Overview IntroductionAvantellis 3000 Series Software Architecture NetPlane SoftwareIntroduction Carrier Grade Linux Operating System Introduction Carrier Grade Linux Operating SystemPage Architectural Overview NetPlane Core ServicesNCS Services NetPlane Core Services NCS ServicesCorresponding SAF AIS NCS Service Name Services Description Message Distribution Service NetPlane Core Services Message Distribution ServiceNCS Service Name Description Leap Portability LayerNetPlane Core Services System Description Distribution of NCS Services in the Avantellis SystemSystem Description NCS DirectorsNCS Directors NCS Directors NetPlane Core ServicesNetPlane Core Services NCS Servers NCS ServersSample Applications System Description System Description NetPlane Core ServicesManagement Access NetPlane Core ServicesManagement AccessDescription Category Management Access NetPlane Core Services Management Access Information FlowSAF-Compliant NCS Services Availability ServiceNetPlane Core Services SAF-Compliant NCS Services Availability Service NetPlane Core Services Availability DirectorAvailability Manager NetPlane Core Services Checkpoint Service Checkpoint ServiceAvailability Node Director Availability AgentCheckpoint Director Checkpoint Service NetPlane Core ServicesMessage Queue Service Checkpoint Node DirectorCheckpoint Agent Event Distribution Service NetPlane Core Services Event Distribution ServiceMessage Queue Director Message Queue Node DirectorNetPlane Core Services Global Lock Service Global Lock ServiceEvent Distribution Server Event Distribution AgentDistributed Tracing Service Motorola Complementary NCS ServicesGlobal Locking Director Global Lock Node DirectorDistributed Trace Server HPI Integration ServiceDistributed Trace Agent ArchitectureSystem Resource Monitoring Service Simple Software UpgradeSimple Software Upgrade NetPlane Core Services HPI Adaption Private Library HPLPersistent Store Server Persistent Store-Restore ServicePSSv Command Execution Functions Management Access ServicesManagement Access Services NetPlane Core Services System Description ParserObject Access Agent Management Access AgentManagement Access Server Message-Based Checkpointing ServiceCommand Line Interpreter Management Access Point Snmp Management Access PointInterface Service Interface Director Message Distribution ServiceInterface Node Director Interface AgentsNetPlane Core Services Message Distribution Service Message Distribution Service Software ComponentsLeap Portability Layer NetPlane Core Services Cancelling Application ThreadsLeap Portability Layer Implementation NotesPage Toolkit Contents Toolkit InstallationNCS Toolkit IntroductionBuilding the Samples Make CommandsDevelopment Host Prerequisites NCS Toolkit Building the SamplesParameters Make CommandsNCS ToolkitRunning the Sample programs Target PrerequisitesNCS Toolkit Running the Sample programs Setting Ldlibrarypath Setting Ldlibrarypath NCS ToolkitRunning the Sample Programs Page Related Documentation Motorola Embedded Communications Computing DocumentsDocument Title Publication Number Related Specifications Related Documentation Related SpecificationsDocument Title Version/Source

6806800C08B specifications

The Motorola 68000 microprocessor, particularly the revision marked as 68000C08B, stands out as a seminal component in the evolution of computing technology. Introduced in 1979, the 68000 architecture laid the groundwork for many advanced systems, influencing a multitude of platforms, from personal computers to game consoles.

The Motorola 68000C08B features a 16-bit data bus and a 24-bit address bus, allowing for a memory addressing capability of up to 16 MB. This architecture was pioneering for its time, enabling more extensive and complex software applications than its predecessors. The C08 revision particularly emphasized optimizing power consumption while maintaining performance, making it ideal for embedded systems and portable devices.

One of the 68000's key characteristics is its unique register set, which allows for a versatile range of operations. It consists of 8 general-purpose data registers and 8 address registers. The architecture supports both integer and floating-point operations, thanks to an integrated instruction set that facilitates complex mathematical computations, crucial for applications in graphics and gaming.

In terms of performance, the 68000 processor operates at clock speeds ranging from 8 MHz to 16 MHz, depending on the specific variant. The instruction set architecture (ISA) is known for its orthogonality, meaning that most instructions can be used interchangeably across different registers. This design simplicity allows for efficient coding and faster execution times, a significant advantage for developers.

Another remarkable feature of the 68000C08B is its capability for multitasking and improved context switching. Its advanced memory management, combined with support for virtual memory in later implementations, catered to the needs of operating systems and real-time applications, making it suitable for both consumer electronics and industrial machinery.

The Motorola 68000 family also supports a variety of peripherals, enhancing its flexibility as a microcontroller. This compatibility allowed manufacturers to create diverse product lines, from keypads and mice to modems and hard drives.

In summary, the Motorola 68000C08B microprocessor not only advanced the landscape of computer technology in the late 20th century but also helped set the stage for future innovations through its architecture, performance capabilities, and versatility in numerous applications. Its legacy continues to influence modern computing paradigms, ensuring the 68000 remains an essential chapter in the history of microprocessors.