On Self-Timed Circuits in Real-Time Systems
Author
Source
International Journal of Reconfigurable Computing
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-03-15
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Information Technology and Computer Science
Abstract EN
While asynchronous logic has many potential advantages compared to traditional synchronous designs, one of the major drawbacks is its unpredictability with respect to temporal behavior.
Having no high-precision oscillator, a self-timed circuit's execution speed is heavily dependent on temperature and supply voltage.
Small fluctuations of these parameters already result in noticeable changes of the design's throughput and performance.
Without further provisions this jitter makes the use of asynchronous logic hardly feasible for real-time applications.
We investigate the temporal characteristics of self-timed circuits regarding their usage in real-time systems, especially the Time-Triggered Protocol.
We propose a simple timing model and elaborate a self-adapting circuit which shall derive a suitable notion of time for both bit transmission and protocol execution.
We further introduce and analyze our jitter compensation concept, which is a threefold mechanism to keep the asynchronous circuit's notion of time tightly synchronized to the remaining communication participants.
To demonstrate the robustness of our solution, we perform different tests and investigate their impact on jitter and frequency stability.
American Psychological Association (APA)
Ferringer, Markus. 2011. On Self-Timed Circuits in Real-Time Systems. International Journal of Reconfigurable Computing،Vol. 2011, no. 2011, pp.1-16.
https://search.emarefa.net/detail/BIM-512538
Modern Language Association (MLA)
Ferringer, Markus. On Self-Timed Circuits in Real-Time Systems. International Journal of Reconfigurable Computing No. 2011 (2011), pp.1-16.
https://search.emarefa.net/detail/BIM-512538
American Medical Association (AMA)
Ferringer, Markus. On Self-Timed Circuits in Real-Time Systems. International Journal of Reconfigurable Computing. 2011. Vol. 2011, no. 2011, pp.1-16.
https://search.emarefa.net/detail/BIM-512538
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-512538