ITC - INTERNATIONAL TEST CONFERENCE 1997, PROCEEDINGS: INTEGRATING MILITARY AND COMMERCIAL COMMUNICATIONS FOR THE NEXT CENTURY
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1997年
关键词:
deterministic BIST;
scan-based BIST;
D O I:
10.1109/TEST.1997.639636
中图分类号:
TP3 [计算技术、计算机技术];
学科分类号:
0812 ;
摘要:
A deterministic BIST scheme is presented which requires less hardware overhead than pseudo-random BIST but obtains better or even complete fault coverage at the same time. It takes advantage of the fact that any autonomous BIST scheme needs a BIST control unit for indicating the completion of the self-test at least. Hence, pattern counters and bit counters are always available, and they provide information to be used for deterministic pattern generation by some additional circuitry. This paper presents a systematic way for synthesizing a pattern generator which needs less area than a 32-bit LFSR for random pattern generation for all the benchmark circuits.