A routing architecture exploration for coarse-grained reconfigurable architecture with automated seu-tolerance evaluation

Coarse-grained reconfigurable architectures are promising components in future SoCs. They are advantageous over fine-grained FPGAs in terms of tolerance for Single-Event Upset (SEU) as well as area and energy efficiency because they have much smaller amount of configuration SRAMs. To establish a design methodology for coarse-grained reconfigurable architecture for specific application domain, this paper compares coarse-grained reconfigurable fabrics of different routing architectures and shows that reconfigurable architecture with excessive routing resources is not preferable when SEU-tolerance is more important than circuit area.