Patent ID: 6577160
Filing Date: 2003-06-10
Classification: H03K

Abstract:
A programmable logic device comprising a plurality of super-regions of programmable logic, each super-region comprising a plurality of regions of programmable logic, each region comprising a plurality of subregions of programmable logic, each subregion programmable to perform a logic operation on an input signal applied to the subregion, the programmable logic device further comprising:a plurality of inter-super region interconnection conductors configured to selectively couple a first of the plurality of super-regions to a second of the plurality of super-regions; a first programmable logic connector configured to selectively couple a first of the plurality of inter-super region interconnection conductors and a second of the plurality of inter-super region interconnection conductors; a second programmable logic connector configured to selectively couple the first or second of the plurality of inter-super region interconnection conductors to an inter-region interconnection conductor; a third programmable logic connector configured to selectively couple the inter-region interconnection conductor to a region feeding conductor; a fourth programmable logic connector configured to selectively couple the region feeding conductor to an input conductor wherein the input conductor is associated with at least one subregion of the plurality of subregions, and wherein the input conductor is configured to convey a signal from the region feeding conductor to the associated subregion; a first local feedback conductor associated with each subregion of the plurality of subregions, the first local feedback conductor configured to convey an output signal from each subregion of the plurality of subregions so that the output signal is available for programmable application as an input signal to another subregion in the associated region; and a second local feedback conductor associated with each subregion of the plurality of subregions, the second local feedback conductor configured to convey the output signal to the inter-region interconnection conductor.