SELF-REPAIRING CARRY-LOOKAHEAD ADDER WITH HOT- STANDBY TOPOLOGY

Abstract

In this project, a self-checking and -repairing carry-lookahead adder (CLA) is proposed with distributed fault detection ability. The presented design with self-checking and fault localization ability. The repairing operation utilizes the hot-standby approach with partial reconfiguration in which the faulty module would be replaced by an accurately functioning module at run-time.
The proposed self-repairing adder with high fault coverage requires 161.5% area overhead as compared to conventional CLA design which is 35.3% less as compared to the state- of-the-art partial self-repairing CLA