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Motorola 6806800C44B manual Models and Concepts, Service Structure Overview

Models: 6806800C44B

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Introduction

Models and Concepts

 

 

entities as well as non-parent child entities. The hardware system model also includes validation data for managed FRUs and the linkages between entities and AMF logical nodes. All the processor environment entities in the hardware entity containment tree, which correspond to AMF nodes, contain the node name of the associated node. The node name provides the linkage between the hardware and the software system models.

Further functionality provided by AvSv includes:

zAutomatic and administrative means to instantiate, terminate and restart resources

zAutomatic and administrative means to manage or reflect Service Group, Service Unit, Service Instance and Resource state

zAdministrative means to perform switch-over

zAdministrative means to reset (but not power cycle) nodes

zHeartbeat and event subscription schemes for fault detection, isolation and identification

zHealth-check services to probe and prevent system trauma that lead to faults

zFault recovery mechanisms to fail-over SIs which maintain service availability in case of system trauma

zFault repair mechanisms to restore failed components

zValidation of hardware resources (managed FRUs) entering the system

The AsVs itself cannot be a single-point of failure. It provides its own internal scheme and mechanisms to protect itself from its own failure.

1.2Models and Concepts

This chapter provides information on:

zService Structure and architecture

zCompliancy to SAF standard

zService Dependencies

zReferences to SAF documents which provide details about the service functionality

zService Extensions

zImplementation Notes

zConfiguration

1.2.1Service Structure Overview

Availability Service is made up of the following distributed sub-parts:

zAvailability Manager

zAvailability Director

zAvailability Node Director

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Availability Service Programmer’s Reference (6806800C44B)

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Motorola 6806800C44B manual Service Structure Overview, Introduction Models and Concepts
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6806800C44B specifications

The Motorola 68000 series, particularly the 68000 microprocessor, has been a cornerstone in the evolution of computing technology. The Motorola 68000 was introduced in 1979 and is renowned for its powerful performance and versatility. One specific variant in this series, the Motorola 68000C44B, offers a remarkable blend of features that cater to both consumer and industrial applications.

The Motorola 68000C44B operates at a clock speed of 25 MHz, allowing it to handle complex instructions swiftly. With a 32-bit data bus, this microprocessor can manage a substantial amount of data simultaneously, enhancing its overall processing capability. The architecture supports a 24-bit address space, meaning it can address up to 16MB of RAM, which was a significant advancement during its time.

One of the standout characteristics of the 68000C44B is its CISC (Complex Instruction Set Computing) architecture. This design paradigm allows the microprocessor to execute multi-step operations with a single instruction, optimizing program efficiency and reducing the load on the CPU. Moreover, the 68000 family is known for its rich instruction set, which provides developers with a wide range of options for programming.

Another important feature of the Motorola 68000C44B is its support for multitasking and memory management. It offers various modes of operation, including user and supervisor modes, facilitating the development of sophisticated operating systems. The ability to work with virtual memory further enhances its utility in complex applications where resources must be managed effectively.

The 68000C44B is also distinguished by its robust compatibility with a range of peripherals and support for various input/output interfaces. This versatility makes it suitable for real-time applications, embedded systems, and consumer electronics.

In terms of power consumption, the Motorola 68000C44B is designed with efficiency in mind, making it a favorable choice for battery-operated devices. Its performance-to-power ratio allows developers to create compact and efficient products without sacrificing functionality.

Overall, the Motorola 68000C44B embodies a blend of performance, efficiency, and compatibility, making it a significant microprocessor in the history of computing. Its technologies and characteristics have laid the groundwork for advancements in microprocessor design, influencing generations of devices. The enduring legacy of the 68000 series continues to resonate in modern computing systems, showcasing the foundational impact of early microprocessors like the Motorola 68000C44B.