Time Borrowing Flip-Flop architecture for error masking in near threshold voltage regime

Abstract

This As dynamic delay variability increases with near-threshold voltage operation, wide timing margins need to be integrated in DVFS (Dynamic Voltage and Frequency Scaling) when deciding the frequency of operation to ensure reliable and error-free operation. Hence the maximum frequency (which is already low) in near-threshold operation is limited by these timing margins. Online methodologies for the resilience of temporal arrangement errors facilitate the recovery of temporal arrangement margins, increasing efficiency and/or energy consumption. This study presents a method for the resilience of online temporal arrangement errors that masks temporal arrangement errors by borrowing time from the phases of serial pipelines. Planned style, while not instruction replay or roll-back support, will recover temporal arrangement margins.