Synchronous processors have one central clock, which synchronizes and coordinates the progress of operations throughout a processor. Synonym: clocked. All parts and stages work to its unifying beat signal, at the same rate, in lock step, handing off work to the next stage as the clock ticks. Almost all computers made, and in use, are synchronous. Clock speed is a primary performance trait. For personal computers, it is used as an identifier and for marketing, shown in units of megahertz (MHz) or gigahertz (GHz). Asynchronous processors have no clock. Synonyms: asynchronous logic, clockless, unclocked; self-timed; hand-shaking. All parts and stages work independently, handing off work to the next stage as it is finished. Different stages stop between tasks. All stages can work at the same or different rates. This is more complex to implement, but lowers power use, current peaks, and emitted heat and electromagnetism (raising security). Only a small fraction of computers made, and fewer in use, mainly in embedded systems, are asynchronous.
  • Asynchronous Processor Technical block diagram with linked text description.
  • Caltech Asynchronous VLSI Group Research focusing on methods and tools for designing high-performance and low-energy asynchronous digital circuits. Home of MiniMIPS asynchronous MIPS R3000 RISC processor. [Department of Computer Science, Caltech]
  • Computer Clocks Wind Down It's growing harder and more costly to make computer clocks work right. The solution may be to eliminate clocks. Benefits: more performance, reliability; lower cost. But commercialization will be hard. [Computerworld]
  • Fulcrum Microsystems, Inc Develops and sells chips and IP (intellectual property) for asynchronous logic circuits. California, USA.
  • The Asynchronous Bibliography Database on circuits, almost 2000 items, download formats: BiBTeX, HTML, PDF, PostScript. Page links: web pages and sites, conferences, produced chips.
  • VLSI Research Group Develops high-speed circuit technologies and design methods to enable novel architectures. Circuit technologies: asynchronous, low-power, communication links. Design methods: intellectual and computer-aided tools for design, implementation, test. [Sun Microsystems]

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40 korisnika prisutno: 3 registrovanih, 1 skrivenih i 36 senkica. Ulogovani: cesko, galeksic, niko650 (01:08)

Bolje te vidim kad sklopim oči - Milan Višnjić
Uto 16.12.2014 8:31, micha@Umetnost
Jedan od cudnijih snova
Pon 15.12.2014 15:58, jeka1983@Sanovnik forum
Iz moje svaštare
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Sanjam stalno bivseg momka. Da li to ista znaci?
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Poezija - najlepsi stihovi
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Filigranska kapija od stihova - Dejan Milenković
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Recepti, jela od mesa - rostiljijada
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