Design for hierarchical two-pattern testability of data paths

被引:0
作者
Altaf-Ul-Amin, M [1 ]
Ohtake, S [1 ]
Fujiwara, H [1 ]
机构
[1] Nara Inst Sci & Technol, Grad Sch Informat Sci, Ikoma 6300101, Japan
来源
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS | 2002年 / E85D卷 / 06期
关键词
design for testability; delay testing; hierarchical testability; two-pattern testability;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper introduces the concept of hierarchical testability of data paths for delay faults. A definition of hierarchically two-pattern testable (HTPT) data path is developed. Also, a design for testability (DFT) method is presented to augment a data path to become an HTPT one. The DFT method incorporates a graph-based analysis of an HTPT data path and makes use of some graph algorithms. The proposed method can provide similar advantages to the enhanced scan approach at a much lower hardware overhead cost.
引用
收藏
页码:975 / 984
页数:10
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