AMULET microprocessor

AMULET microprocessor

AMULET is a series of microprocessors that implement the ARM processor architecture. Developed by the [ Advanced Processor Technologies] group under the University of Manchester's computer science school (formerly the AMULET and PAL groups based at the same institution), AMULET is unique from other ARM implementations in that it is an asynchronous microprocessor, not making use of a square wave clock signal for data synchronization and movement.

List of AMULET microprocessors

*AMULET1 - Designed in 1990 and first fabricated in 1993. Its estimated performance is approximately 70% of that of a comparably-sized synchronous ARM6 running at 20 MHz.
*AMULET2 - A re-implementation of AMULET1 first fabricated in 1996. Features on-chip memory that can be used either as processor cache or mapped RAM. The APT group estimates AMULET2 to have a similar power dissipation/performance ratio as ARM8. One very notable feature that is due to the asynchronous design is that the power dissipation drops to 3 μW when not in use (assuming the on-board timer, which handles DRAM refresh, is also inactive).
*AMULET3 - This was a redesigned architecture aiming at higher performance than the previous AMULET processors whilst retaining low power dissipation. Fabricated in 2000 it supported the ARM level 4 instruction set compatibility, as well as support Thumb mode (i.e. ARM9TM). Performance and power dissipation were approximately the same as an ARM9 fabricated on the same technology. AMULET3 was employed in a commercial prototype DECT device because of its inherent low electromagnetic interference characteristics. This did not go into manufacture for non-technical reasons.

ee also

*ARM Architecture

External links

* [ ARM Ltd.]
* [ APT Group]

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Pipeline (computing) — In computing, a pipeline is a set of data processing elements connected in series, so that the output of one element is the input of the next one. The elements of a pipeline are often executed in parallel or in time sliced fashion; in that case,… …   Wikipedia

  • School of Computer Science, University of Manchester — School of Computer Science The School of Computer Science is based in the Kilburn Building on Oxford Road Established 2004 from the Department of Computer Science at the Victoria University of Manchester during merger with UMIST …   Wikipedia

  • Low-power electronics — means that the consumption of electric power is deliberately low, e.g. notebook processors. Electronics The density and speed of integrated circuit computing elements has increased roughly exponentially for a period of several decades, following… …   Wikipedia

  • Asynchronous circuit — An asynchronous circuit is a circuit in which the parts are largely autonomous. They are not governed by a clock circuit or global clock signal, but instead need only wait for the signals that indicate completion of instructions and operations.… …   Wikipedia

  • Central processing unit — CPU redirects here. For other uses, see CPU (disambiguation). An Intel 80486DX2 CPU from above An Intel 80486DX2 from below …   Wikipedia

  • History of general purpose CPUs — The history of general purpose CPUs is a continuation of the earlier history of computing hardware. 1950s: early designs Each of the computer designs of the early 1950s was a unique design; there were no upward compatible machines or computer… …   Wikipedia

  • Steve Furber — Professor Stephen Byram Furber CBE, FRS, FREng (born 1953 in Manchester, England) is the ICL Professor of Computer Engineering at the School of Computer Science at the University of Manchester but is probably best known for his work at Acorn… …   Wikipedia

  • ARM architecture — This article is about a computer processor architecture. For other uses, see ARM (disambiguation). Logo ARM Designer ARM Holdings Bits …   Wikipedia

  • The Ancestral Trail — When he who is the Chosen One Shall tread upon the Ancient Path And battle there to overcome The Forces of Dark Then shall the Seven be restored And evil banished from this world The Ancestral Trail is a now out of print partwork magazine that… …   Wikipedia

  • 5 (number) — This article discusses the number five. For the year 5 AD, see 5. For other uses of 5, see 5 (disambiguation). 5 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.