Bus encoding algorithm to reduce crosstalk effects

Abstract

Usually crosstalk problems are resolved by using physical methods like, guard tracing or increasing the distance between adjacent traces, [1]. Even if these methods yield good results, the bus surface is increased on the printed circuit board (PCB). A solution to this problem is to encode the sent information. By using crosstalk avoidance codes (CAC), there can be resolved crosstalk and inter-symbol interference (ISI) problems. CAC are developed by imposing rules regarding which switching pattern can be sent via the parallel data bus. By doing so, there are created forbidden transition channels (FTC). The purpose of the CAC is to enable a high speed transmission on a PCB built by using mainstream technologies without the high speed manufacturing processes.