Abstract: A method and computer readable medium for implementing redundancy on a programmable logic device with improved interconnect efficiency. The method and medium includes: determining if a first wire segment of a first wire channel requires a programmed connection to a resource in the row furthest from the buffer driving the first wire segment and spanned by the first wire segment; reserving a next segment in the first channel if the first wire segment of the first wire channel requires a programmed connection to a resource in the row furthest from the buffer driving the first wire segment and spanned by the first wire segment; and assuming a maximum delay path including the programmable signal propagation delay of the reserved next segment and a stitching element coupled between the first segment and the reserved next segment of the first channel.

Abstract: A programmable logic device has a plurality of super-regions of programmable circuitry disposed on the device in a two-dimensional array of such super-regions. Each super-region includes a plurality of regions of programmable logic and a region of programmable memory. Each logic region includes a plurality of subregions of programmable logic. Each super-region has associated interconnection resources for allowing communication between the logic and memory regions of that super-region without the need to use, for such relatively local interconnections, the longer-length inter-super-region interconnection resources that are also provided on the device.