Algorithm level re-computing with shifted operands-a register transfer level concurrent error detection technique

—This paper presents Algorithm-level REcomputing with Shifted Operands (ARESO), which is a new register transfer (RT) level time redundancy-based concurrent error detection (CED) technique. In REcomputing with Shifted Operands (RESO), operations (additions, subtractions, etc.) are carried out twice—once on the basic input and once on the shifted input. Results from these two operations are compared to detect an error. Although using RESO operators in RT-level designs is straightforward, it entails time and area overhead. In contrast, ARESO does not use specialized RESO operators. In ARESO, an algorithm is carried out twice—once on the basic input and once on the shifted input. Results from these two algorithm-level instantiations are compared to detect an error. By operating at the algorithm level, ARESO exploits RT-level scheduling, pipelining, operator chaining, and multicycling to incorporate user-specified error detection latencies. ARESO supports hardware versus performance...

• Type: Conference
• Year: 2000
• Where: ITC
• Authors: Ramesh Karri, Kaijie Wu
• Keywords: Basic Input, Error Detection, Hardware, ITC 2000, RESO Operators