Application of Error Correcting Codes in Fault-Tolerant Logic Design for VLSI Circuits
Author | : |
Publisher | : |
Total Pages | : 71 |
Release | : 1992 |
ISBN-10 | : OCLC:227791763 |
ISBN-13 | : |
Rating | : 4/5 (63 Downloads) |
Book excerpt: The use of error detecting/correcting codes in self-checking and fault-tolerant logic design has been receiving considerable attention in recent years. In this report we present the results of our investigation in the application of such codes. We have developed a technique based on low-cost residue code to design arbitrary combinational logic circuits with self-checking capability. We also proposed a technique which allows detection of single, and up to three bits of multi-bit errors in multi-output combinational logic circuits; the major advantage of this technique is that the error detecting capability depends on the output bits of a circuit rather than its internal complexity. A technique for implementing fully testable sequential circuits from their specifications has also been proposed. This technique eliminates the post- design circuit modifications as used in the currently popular scan-based techniques.