Redundancy - mostly used method to increase fault tolerance of the system. Fault tolerance in modern embedded systems is important feature due to accelerating aging and manufacturing defects, which diagnosis during the chip testing at fabric is impossible. In addition, different ways of system using may need different degree of fault tolerance. From Application Specified Integrated Circuit (ASIC) design point of view redundancy means area and power increasing. On early design stages, it is necessary to see the correlation between the components hardware description and its synthesized equivalent. The article considers several variants of synthesized redundant components that show the effect on area and power regarding to their architecture. The main goal of presented research is to describe RTL and Synthesis correlation.
