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A controller LSI for realizing V DD-hopping scheme with off-the-shelf processors and its application to MPEG4 system

Title
A controller LSI for realizing V DD-hopping scheme with off-the-shelf processors and its application to MPEG4 system
Authors
Kawaguchi H.Zhang G.Lee S.Shin Y.Sakurai T.
Ewha Authors
이성수
Issue Date
2002
Journal Title
IEICE Transactions on Electronics
ISSN
0916-8524JCR Link
Citation
IEICE Transactions on Electronics vol. E85-C, no. 2, pp. 263 - 271
Indexed
SCIE; SCOPUS scopus
Document Type
Article
Abstract
An LSI has been fabricated and measured to demonstrate feasibility of V DD-hopping scheme in an embedded system level by executing MPEG4 CODEC. In the V DD-hopping, supply voltage of a processor is dynamically controlled by a hardware-software cooperative mechanism depending on work-load of the processor. When the workload is about a half, the V DD-hopping is shown to reduce power to less than a quarter compared to the conventional fixed-V DD scheme. The power saving is achieved without degrading real-time features of MPEG4 CODEC.
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인공지능대학 > 컴퓨터공학과 > Journal papers
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