| Title |
Asynchronous State Feedback Control for SEU Mitigation of TMR Memory |
| Authors |
양정민(Yang, Jung-Min) ; 곽성우(Kwak, Seong-Woo) |
| Keywords |
Asynchronous machines ; Corrective control ; Triple modular redundancy (TMR) ; Single event upset(SEU) |
| Abstract |
In this paper, a novel TMR (Triple Modular Redundancy) memory structure is proposed using state feedback control of asynchronous sequential machines. The main ability of the proposed structure is to correct the fault of SEU (Single Event Upset) asynchronously without resorting to the global synchronous clock. A state-feedback controller is combined with the TMR realized as a closed-loop asynchronous machine and corrective behavior is operated whenever an unauthorized state transition is observed so as to recover the failed state of the asynchronous machine to the original one. As a case study, an asynchronous machine modelling of TMR and the detailed procedure of controller construction are presented. A simulation results using VHDL shows the validity of the proposed scheme. |