Fast Self-Recovering Controllers

A fast fault-tolerant controller structure is presented, which is capable of recovering from transient faults by performing a rollback operation in hardware. The proposed fault-tolerant controller structure utilizes the rollback hardware also for system mode and this way achieves performance improvements of more than 50% compared to controller structures made fault tolerant by conventional techniques, while the hardware overhead is often negligible. The proposed approach is compatible with state-of-the-art methods for FSM decomposition, state encoding and logic synthesis.

• Type: Conference
• Year: 1998
• Where: VTS
• Authors: Andre Hertwig, Sybille Hellebrand, Hans-Joachim Wunderlich
• Keywords: Fast Fault-tolerant Controller, Fault-tolerant Controller Structure, Hardware, Rollback Hardware, VTS 1998