Complementary Multiple-Valued Encoding Scheme for Interconnect-Fault-Resilient Bidirectional Asynchronous Links

Abstract

In this paper, we propose a new encoding scheme for multiple-valued dual-rail data representation in asynchronous links with open-wire fault. Since data-arrival state is detected by the summation of the current signal, error states which are caused by the open-wire fault can be distinguished from the correct states by using proposed \textit{Complementary Encoding}. Detection of these error states makes it possible to maintain the transmission capability of the links. The open-wire fault detect ability by using proposed encoding-based data representation is mathematically proven in this paper. And a simple example of data representation based on the proposed encoding scheme is also demonstrated.