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Nonengineer Val nonEngineer Val. 25 No. 3 Oct./Nov. 1979 Microprocessor applications IMCWA1 Engineer A technical journal published by RCA Research and Engineering Bldg. 204-2 Cherry Hill, N.J. 08358 Tel. 222-4254 (609-338-4254) MEN1 Engineer RCA Engineer Staff Vol 25 No 3 Oct 'Nov 1979 Tom King Editor Betty Stotts Assistant Editor Louise Carr Art Editor Frank Strobl Contributing Editor Betty Gutchigian Composition Dottie Snyder Editorial Secretary Editorial Advisory Board Pete Bingham Div. VP, Engineering, Consumer Electronics Div. Jay Brandinger Div. VP, SelectaVision VideoDisc Operations John Christopher VP, Tech. Operations, RCA Americom Bill Hartzell Div. VP, Engineering, Picture Tube Division Jim Hepburn VP, Advanced Programs RCA Globcom Hans Jenny Manager, Engineering Microprocessor applications Information Arch Luther Chief Engineer, Commercial The cover is an artist's interpretation of an "intelligent" Communications Systems Div. product with the microprocessor as its "brain." (In this Howie Rosenthal case, we show the 1804 microcomputer, soon to be Staff VP, Engineering released on the market.) Each of the surrounding Carl Turner Div. VP, Product Assurance segments represents the types of devices which make the and Planning, microprocessor work effectively in a product. Solid State Div. Bill Underwood Director, Engineering The ANALOG segment represents those devices which convert the incoming and outgoing signals from analog Professional Programs to digital and vice versa. CRT (cathode ray tube) refers to Joe Volpe Director, Product Operations, a display device for microcomputer to operator informa- Missile and Surface Radar tion. DMA (direct memory access) devices permit high Bill Webster VP, Laboratories speed access to data stored in the computer's memory without disrupting normal computer operation. The memory (MEM) segment represents the stored informa- Consulting Editors tion of the system. MATH: Because microprocessors are usually not designed to perform arithmetic operations Ed Burke Administrator, Marketing efficiently, special chips have been designed to perform Information and Communications, these operations while interfacing with the micro- Government Systems Div. processor. Most multi -microprocessor systems consist Walt Dennen Director, Public Affairs, of a master processor along with SLAVE processors that Solid State Division run in parallel with the master but take their direction from it. Charlie Foster Mgr., Scientific Publications, Laboratories The importance of choosing the appropriate micro- John Phillips Mgr., Proposals and Publicity, processor and peripheral devices for each application is Automated Systems stressed in Don Latham's cover message on the next page. To disseminate to RCA engineers technical information of professional value To publishinan appropriate manner important technical developments at RCA, and the role of the engineer To serve as a medium of interchange of technical information between various groups at RCA To create a community of engineering interest within the company by stressing the interrelated nature of all technical contributions To help publicize engineering achievements in a manner that will promote the interests and reputation of RCA in the engineering field To provide a convenient means by which the RCA engineer may review his professional work before associates and engineering management To announce outstanding and unusual achievements of RCA engineers in a manner most likely to enhance their prestige and professional status. Microprocessors: their impact on system designs and systems designers Microprocessors mimicked hardware features in software, are a milestone basically, doing the same thing in a different way. achievement in More recently, however, with the maturing of technology which microprocessor architecture and software will very likely have design and testing, we are beginning to realize an impact on or applications which were initially considered im- lives comparable to possible or unreasonable. that of the priming press, the internal The necessity for radical departures in the way combustion of doing business places new demands on engine, and the design and systems ergineers. Each engineer transistor. Fulfill- must become familiar with the new technology. ment of a Selecting the "right" microprocessor for an application is not a trival chore: 60 to 80 different Donald C. Latham technological promise can be so microprocessor architectures are readily available on the commercial market, and an long in coming that the impact of new products is not immediately recognized, but micro- additional three to ten times that number are available in supporting functional LSI arrays. processors have had an impact while still in their Many key characteristics must be evaluated, infancy. Significantly, the microprocessor such as flexibility of instruction set, data type potential continues to grow and promises to be manipulation, memory address modes, and flex- overwhelming. On -chip density and speed im- provements in the next three to five years may ibility of the I/O and c' the arithmetic and logic reach 100,000 gates per chip with internal clock operations. rates over 100 MHz. With this level of technology, Typically less than ten percent of a micro- extremely complex computer and signal processor -based project involves pure hardware processing systems could be integrated on a design issues, while the remaining 90 percent is single chip. Application desicns will become devoted to microprocessor selection, systems even more software intensive, and hardware architecture planning, software design, system costs in both computer and memory will be integration, and testing. As a result, today's driven down to a small fraction of the overall microprocessor systems designers must make costs. extensive hardware/software tradeoffs at the front end of the program, develop innovative Full realization of microprccessor potential programmable designs, create test philosophies, requires new and perhaps radical approaches and employ key testing tools such as logic and discipline in system design, software and analyzers, pattern generators, and in -circuit firmware development, test and evaluation, and emulators. field service. Imagination and resourcefulness will be as necessary in this process as they were In this issue, we have a sampling of RCA 25 years ago in the initial attempts to apply the microprocessor applications. A host of exciting, transistor. and even revolutionary, new microprocessor - based products and systems are soon to follow. For many years after the invention of the transistor and its availability, we had to wean electronic equipment designers from the notion of replacing vacuum tubes with transistors on a one -for -one basis. Once this elementary notion e was dismissed, the full potential of transistor circuits was realized, and an entirely new Donald C. Latham generation of electronic products appeared. An Division Vice President, Engineering analogous situation exists with microprocessor Government Systems Division applications. Many early applications simply Moorestown, N.J. Highlights introduction why is the microprocessor industry growing at such a rapid pace and what will be its effect on the application's concept? microprocessor -based products ACTIVE AREA RCA is making intelligent TV receivers 2 3 4 5 6 7 8 9 10 11 12 13 1415 16 1718 19 and cameras. 2021 22 2324 2526 272829 3031 32 3334 3536 373839 404142 4344 4546 474849 50 51 52 5354 5556 575859 6061 62 6364 6566 676869 70 7172 7374 7576 777879 808182 83 DOWN VOLUME UP microprocessors in systems 3. microprocessors aid in energy conservation for automotive, temperature -regulation and communication systems. DOC Pr tss$ microprocessors in manufacturing introducing intelligence into automatic testing saves money and reduces errors in electrical parts inspection. In future issues quality & reliability, RCA worldwide, color TV receivers, anniversary issue pumaEngineer Vol 25INo. 3 Oct.1Nov. 79 introduction 4 The microprocessor industry and the emerging applications revolution P.M. Russo 14 A microcomputer glossary P.P. Fasang microprocessor -based 17 The "berry picking" approach to computer systems development products B. AstleIM. LurielK. Schroeder 22 Intelligent controllers for color -television receivers K. Karstad 27 The AutoProgrammer B.W. BeyersIA.J. Suchko 30 82 -channel, single -touch TV tuning system D. Sprague microprocessors 34 Software techniques for a microprocessor -based data in systems acquisition device H.A. Goldstand 39 MASS-a modular ESM signal processor A. Kaplan ID.L. Sherwood 43 Microprocessors in automotive electronics D.R. Carley 47 Alarm status monitoring and reporting W.D. Henn 50 Microcomputer system design for remote process control A. AbramovichlA.K. Patel 55 Software design methodologies applied to remote process control R. Poulo microprocessors 60 Dedicated microprocessor -based testers for improved in manufacturing fault isolation M. HerskowitzlN.J. Fedele on the job/off the job 64 Reports on how RCA people are using microprocessors learning about 68 Microprocessor/software-oriented educational program at RCA microprocessors P.P. Fasang general interest 72 The TK-47 Autocam television camera L.J. ThorpeIR.A. Dischert 76 Rapid RMA assessment-the painless plot F.A. Eblel E.W. Richards, Jr. departments 81 Dates and Deadlines 82 Pen and Podium 84 Patents 85 News and Highlights Copyright c 1979 RCA Corporation All rights reserved :74 40, IF , 11 a a RCA 1804, introduced in 1979,
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