一种基于ALU单元的时间冗余模型检错技术  

An Error Detection Method Based on the Module of Time Redundancy Using in ALU

作　　者：尹立群[1] 袁国顺[1] 

机构地区：[1]中国科学院微电子研究所,北京100029

出　　处：《微电子学与计算机》2009年第2期140-143,共4页Microelectronics & Computer

摘　　要：为了提高系统的可靠性,提出了一种以时间冗余模型为基础,针对ALU电路的失效检错方法,称之为操作数反向重计算机制(简称REIO).相对传统的时间冗余检错方法RESO,本方法检错速度更快且面积更小.对于一个含有32×32位乘法器的ALU单元,采用REIO算法相对于RESO算法,面积减少了10%左右.For improving reliability of the system,an error detection method called Recomputing with inverted operands is composed which based on the module of timer redundancy.Comparing to the previous method called Recomputing with shifted operands,the detecting time is shorter and the area is smaller.In a 32×32 bits Wallace-tree multiplier which is used these two different detecting methods.The area of using REIO is 10% less than that of RESO.

关 键 词：冗余设计 算术逻辑运算单元 时间冗余 错误检测 

分 类 号：TN402[电子电信—微电子学与固体电子学]