Asynchronous

• Computers: Computer Science: Theoretical: Asynchronous Computability  (5)
• Science: Technology: Electronics: Design: Asynchronous  (1)

Amulet - Series (1, 2e, 3, 3i) based on ARM design using micropipeline design style; released 1993; backwards instruction set compatible, runs extant binaries with no modification. [Advanced Processor Technologies Group, University of Manchester]

The Asynchronous Bibliography - Database on circuits, almost 2000 items, download formats: BiBTeX, HTML, PDF, PostScript. Page links: web pages and sites, conferences, produced chips.

Asynchronous Logic - Basic explanation of idea and benefits, with publications; by researcher David A. Kearney, School of Computer and Information Science, University of South Australia.

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]

Fulcrum Microsystems, Inc - Develops and sells chips and IP (intellectual property) for asynchronous logic circuits. California, USA.

MiniMIPS - Processor core based on MIPS I design, integrated in an FPGA, language is VHDL, speed is 50 MIPS. [LGPL, Opencores.org]

Theseus Logic, Inc. - Clockless electronics for power managed, low noise/EMI, secure and reusable circuits and systems. Florida, USA.

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]

World’s First Flexible 8-bit Asynchronous Processor - Developed by Seiko Epson, uses low-temperature polysilicon thin-film transistors (LTPS-TFTs) on plastic substrate, energy use down 70%, Epson is researching uses for it. [Electronic Design Europe] (March, 2005)

Nanocomputer Skips Clock - With components maybe as small as individual molecules, such computers will likely need new designs. [Technology Research News] (April 23, 2003)

Philips Gambit: Self-timing's Time is Here - Philips Research to spin off internal asynchronous chip design technology hoping for wide use in low-power devices. Internally called Tangram, now renamed Handshake Technology is a set of tools, cores, design expertise Philips used for over 10 years, sold millions of chips. [EE Times] (March 31, 2003)

Time for the Clockless Computer Chip - Brief article explains why such processors promise more speed, safety, security, miniaturization. [Dataweek] (February 26, 2003)

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] (December 23, 2002)

Asynchronous Logic Use: Provisional, Cautious, and Limited - Prudence seems the watchword for adopting asynchronous design practices. [Embedded.com] (September 13, 2002)

Computers without Clocks (or Asynchronous Computers) - Basic explanation of idea and benefits, with reference. [Roland Piquepaille's Technology Trends] (July 20, 2002)

Freeing Computers from the Constraints of Time - Time is running out for the clocks that make our computers tick as scientists develop a new generation of hardware and software based on the simpler designs of the 1950s. [SpaceDaily] (April 19, 2002)

Chips without Ticks: Why Not Do Away with Processor Clocks? - Article describes basics and state of affairs in 1994. [PowerPC News] (December 16, 1994)