Name
Title | ||
|---|---|---|
ScTMR: A scan chain-based error recovery technique for TMR systems in safety-critical applications. |
Abstract | ||
|---|---|---|
We propose a roll-forward error recovery technique based on multiple scan chains for TMR systems, called Scan chained TMR (ScTMR). ScTMR reuses the scan chain flip-flops employed for testability purposes to restore the correct state of a TMR system in the presence of transient or permanent errors. In the proposed ScTMR technique, we present a voter circuitry to locate the faulty module and a controller circuitry to restore the system to the fault-free state. As a case study, we have implemented the proposed ScTMR technique on an embedded processor, suited for safety-critical applications. Exhaustive fault injection experiments reveal that the proposed architecture has the error detection and recovery coverage of 100% with respect to Single Event Upset (SEU) while imposing a negligible area and performance overhead as compared to traditional TMR-based techniques. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/DATE.2011.5763277 | DATE |
Keywords | Field | DocType |
fault tolerant computing,microprocessor chips,safety-critical software,system recovery,ScTMR,TMR systems,controller circuitry,exhaustive fault injection experiments,roll forward error recovery technique,safety critical applications,scan chain based error recovery technique,scan chain flip flops,single event upset,voter circuitry | Testability,Control theory,Central processing unit,Computer science,Scan chain,Real-time computing,Error detection and correction,Fault tolerance,Single event upset,Fault injection,Embedded system | Conference |
ISSN | Citations | PageRank |
1530-1591 | 6 | 0.60 |
References | Authors | |
6 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mojtaba Ebrahimi | 1 | 336 | 24.74 |
| Seyed Ghassem Miremadi | 2 | 531 | 50.32 |
| Hossein Asadi | 3 | 323 | 31.94 |