About this Manual

Abbreviation

Definition

 

 

MQD

Message Queue Director

 

 

MQND

Message Queue Node Director

 

 

MQSv

Message Queue Service

 

 

MSG

Messaging Service

 

 

NCS

NetPlane Core Services software

 

 

OAA

Object Access Agent

 

 

PCS

Platform Control Software

 

 

PSA

Persistent Store Agent

 

 

PSS

Persistent Store Server

 

 

PSSv

Persistent Store Service

 

 

SAF

Service Availability Forum™

 

 

SG

Service Groups

 

 

SI

Service Instances

 

 

SRMA

System Resource Monitoring Agent

 

 

SRMND

System Resource Monitoring Node Director

 

 

SRMSv

System Resource Monitoring Service

 

 

SSU

Simple Software Upgrade

 

 

SUND

Simple Software Upgrade Node

 

 

SU

Service Units

 

 

XML

Extensible Markup Language

 

 

Conventions

The following table describes the conventions used throughout this manual.

 

Notation

Description

 

 

 

 

 

 

 

0x00000000

Typical notation for hexadecimal numbers

 

 

 

(digits are 0 through F), for example used for

 

 

 

addresses and offsets

 

 

 

 

 

 

0b0000

Same for binary numbers (digits are 0 and 1)

 

 

 

 

 

 

bold

Used to emphasize a word

 

 

 

 

 

 

Screen

Used for on-screen output and code related

 

 

 

elements or commands in body text

 

 

 

 

 

 

Courier + Bold

Used to characterize user input and to

 

 

 

separate it from system output

 

 

 

 

 

 

Reference

Used for references and for table and figure

 

 

 

descriptions

 

 

 

 

 

 

 

File > Exit

Notation for selecting a submenu

 

 

 

 

 

 

 

<text>

Notation for

variables and keys

 

 

 

 

 

 

 

 

 

 

 

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

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Motorola 6806800C08B manual Conventions, Notation Description, Bold

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.