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| Content Provider | ACM Digital Library |
|---|---|
| Author | Choudhury, Mihir R. Mohanram, Kartik |
| Abstract | There is a growing concern about timing errors resulting from design marginalities and the effects of circuit aging on speed-paths in logic circuits. This paper presents a low overhead solution for masking timing errors on speed-paths in logic circuits. Error masking at the outputs of a logic circuit is achieved by synthesis of a non-intrusive error-masking circuit that has at least 20% timing slack over the original logic circuit. The error-masking circuit can also be used to collect runtime information when the speed-paths are exercised to (i) predict the onset of wearout and (ii) assist in in-system silicon debug. Simulation results for several benchmark circuits and modules from the OpenSPARC T1 processor are presented to illustrate the effectiveness of the proposed solution. 100% masking of timing errors on all speed-paths within 10% of the critical path delay is achieved for all circuits with an average area (power) overhead of 16% (18%). |
| Starting Page | 87 |
| Ending Page | 92 |
| Page Count | 6 |
| File Format | |
| ISBN | 9783981080155 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2009-04-20 |
| Publisher Place | Leuven |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
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