상세정보
학술지
80 μW/MHz, 850 MHz Fault Tolerant Processor with Fault Monitor Systems
- 발행일
- 201710
- 출처
- Journal of Semiconductor Technology and Science, v.17 no.5, pp.627-635
- ISSN
- 1598-1657
- 출판사
- 대한전자공학회 (IEIE)
- 협약과제
- 17HB2500, 초절전 하이퍼바이저 기반 지능정보 매니코어프로세서 및 SW기술 개발, 권영수
- 초록
- The processor is becoming increasingly susceptible to transient faults with fluctuating voltage, widening operating temperature, and increasing clock frequency. Especially, processor, operating near threshold voltage for a low power, can expose to transient faults with the thin margin of process, voltage, and temperature. This paper presents a fault tolerant processor having on-chip fault monitor systems for processor core and cache, which detects faults and corrects faults, and a fault injector which injects faults for testing. The fault tolerant feature is analyzed by a fault injection and quantitative analysis complying with ISO26262 standard. As a result, the proposed work achieves 80 쨉W/MHz energy efficiency, 850 MHz maximum frequency, 72% fault trap reduction, and 99.23% single point fault failure rate complying with ISO26262.
- KSP 제안 키워드
- Clock frequency, Energy Efficiency, Failure Rate, Fault Injection, Fault-tolerant, Low-Power, Maximum Frequency, Near Threshold Voltage, On-chip, Processor core, Single point