Low-Power, Resilient Interconnection with Orthogonal Latin Squares

A reliable, energy-efficient on-chip interconnection network employing low-swing signaling can be designed by incorporating error-correcting code. Orthogonal Latin Square Code (OLSC) can protect the interconnection against transient errors, while also lowering energy consumption. When applied to a 64-bit link using a 45-nm CMOS technology with low-swing signaling, OLSC provided up to 55% energy reduction, with only a small area overhead and no loss in reliability.