| 基于CRM型三变量通用逻辑门的查表设计 |
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| 引用本文： | 潘张鑫,罗小华,陈偕雄. 基于CRM型三变量通用逻辑门的查表设计[J]. 浙江大学学报(理学版), 2006, 33(2): 178-181 |
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| 作者姓名： | 潘张鑫 罗小华 陈偕雄 |
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| 作者单位： | 1. 浙江大学,信息与电子工程学系,浙江,杭州,310028
2. 浙江大学,超大规模集成电路设计研究所,浙江,杭州,310027 |
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| 摘 要： | 讨论了逻辑函数的CRM展开与分类,给出了基于逻辑函数CRM展开的三变量函数P分类表、接线顺序以及P分类代表函数的接线方案.在此基础上提出了基于CRM型三变量通用逻辑门的查表设计方法,并给出了具体设计实例.
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| 关 键 词： | 通用逻辑门 函数分类 CRM展开 逻辑设计 |
| 文章编号： | 1008-9497(2006)02-178-04 |
| 收稿时间： | 2005-01-17 |
| 修稿时间： | 2005-01-17 |
Tabular design based on CRM type three-variable universal logic gates |
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| PAN Zhang-xin,LUO Xiao-hua,CHEN Xie-xiong. Tabular design based on CRM type three-variable universal logic gates[J]. Journal of Zhejiang University(Sciences Edition), 2006, 33(2): 178-181 |
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| Authors: | PAN Zhang-xin LUO Xiao-hua CHEN Xie-xiong |
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| Affiliation: | 1. Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310028, China; 2. Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | CRM type universal logic gates is a kind of universal logic gates based on CRM expansion that is a canonical expansion of logic functions. Logic circuits implemented by this type of gates are easy to be tested. A design method of logic functions by using CRM type three-variable universal logic gates was discussed. Based on the discussion of CRM expansion and the classification of logical functions, P classification table of threevariable functions, input permutation table, and input-connection scheme table of canonical functions of P classification were provided. Using these tables, a tabular design method based on CRM type three-variable universal logic gates was proposed and several design examples were given. The advantage of this method is concision and convenient to be realized by computer program. |
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| Keywords: | universal logic gates function classification CRM expansion logic design |
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