SEU-tolerant QDI Circuits

This paper addresses the issue of Single-Event Up- set (SEU) in quasi delay-insensitive (QDI) asyn- chronous circuits. We show that an SEU can cause abnormal computations in QDI circuits beside dead- lock, and we propose a general method to make QDI circuits SEU-tolerant. We present a simplied SEU- tolerant buer implementati..