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Published Articles >> Table of Contents >> Abstract
15th Euromicro Conference on Real-Time Systems (ECRTS'03)
p. 169
Processor Support for Temporal Predictability — The SPEAR Design Example
Martin Delvai, Technical University of Vienna
Wolfgang Huber, Technical University of Vienna
Peter Puschner, Technical University of Vienna
Andreas Steininger, Technical University of Vienna
Full Article Text:
  
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/EMRTS.2003.1212740
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| Abstract |
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The demand for predictable timing behavior is characteristic for real-time applications. Experience has shown that this property cannot be achieved by software alone but rather requires support from the processor. This situation is analyzed and mapped to a design rationale for SPEAR (Scalable Processor for Embedded Applications in Real-time Environments), a processor that has been designed to meet the speci.c temporal demands of real-time systems. At the hardware level, SPEAR guarantees interrupt response with minimum temporal jitter and minimum delay. Furthermore, the processor provides an instruction set that only has constant-time instructions. At the software level, SPEAR supports the implementation of temporally predictable code according to the single-path programming paradigm. Altogether these features support writing of code with minimal jitter and provide the basis for exact temporal predictability. Experimental results show that SPEAR indeed exhibits the anticipated highly predictable timing behavior.
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 Additional Information
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Index Terms- real-time processor, response time, response jitter, worst case execution time, one path programming
Citation:
Martin Delvai, Wolfgang Huber, Peter Puschner, Andreas Steininger,
"Processor Support for Temporal Predictability — The SPEAR Design Example,"
ecrts,
p. 169,
15th Euromicro Conference on Real-Time Systems (ECRTS'03),
2003
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