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一种并行输出的折叠计数器方案 被引量:1

A Folding Counters Scheme of Parallel-Output
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摘要 提出了一种并行输出的折叠计数器方案.折叠计数器作为一种测试模式生成器取得了很高的测试数据压缩率,但由于其每个时钟周期只产生一位测试数据,故只能应用于单扫描链结构,这样就会导致测试时间过长.建议方案通过改进折叠计数器结构使其实现并行输出,这一改进既能保持折叠计数器高测试数据压缩率的优势,又能最大限度地降低测试应用时间,同时对应的解压结构简单规则. 提出了一种并行输出的折叠计数器方案.折叠计数器作为一种测试模式生成器取得了很高的测试数据压缩率,但由于其每个时钟周期只产生一位测试数据,故只能应用于单扫描链结构,这样就会导致测试时间过长.建议方案通过改进折叠计数器结构使其实现并行输出,这一改进既能保持折叠计数器高测试数据压缩率的优势,又能最大限度地降低测试应用时间,同时对应的解压结构简单规则.
出处 《计算机研究与发展》 EI CSCD 北大核心 2010年第S1期200-203,共4页 Journal of Computer Research and Development
基金 国家自然科学基金项目(60876028) 国家自然科学基金重点项目(60633060) 高等学校博士学科点专项科研基金项目(200803590006) 安徽省海外高层次人才项目(2008Z014) 安徽高校省级自然科学研究重点项目(KJ2010A280)
关键词 内建自测试 折叠计数器 翻转控制 BIST folding counters reversal control
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