| Authors: | Kavousianos X., Kalligeros E., Nikolos D. |
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| Title: | "Efficient Test-Data Compression for IP Cores Using Multilevel Huffman Coding" |
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| Conference: | Design Automation and Test in Europe (DATE) Conference |
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| Editors: | |
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| Ed: | No |
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| Eds: | No |
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| Pages: | 1033-1038 |
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| To appear: | No |
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| Month: | March |
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| Year: | 2006 |
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| Place: | |
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| Pubisher: | |
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| Link: | http://dl.acm.org/ft_gateway.cfm?id=1131768&ftid=358481&dwn=1&CFID=264353496&CFTOKEN=33288925 |
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| File name: | |
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| Abstract: | In this paper we introduce a new test-data compression
method for IP cores with unknown structure. The proposed
method encodes the test data provided by the core vendor
using a new, very effective compression scheme based on
multilevel Huffman coding. Specifically, three different kinds
of information are compressed using the same Huffman code,
and thus significant test data reductions are achieved. A
simple architecture is proposed for decoding on-chip the
compressed data. Its hardware overhead is very low and
comparable to that of the most efficient methods in the literature.
Additionally, the proposed technique offers increased
probability of detection of unmodeled faults since the majority
of the unknown values of the test set are replaced by
pseudorandom data generated by an LFSR. |
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Greek