Patent ID: 6774669
Filing Date: 2004-08-10
Classification: H03K

Abstract:
A freeway routing system for a field programmable gate array, the field programmable gate array comprising:an array of field programmable gate array tiles, wherein each field programmable gate array tile comprises: a plurality of functional groups arranged in rows and columns; and a plurality of interface groups, each interface group comprising a set of freeway input ports and output ports, wherein: each row of functional groups has an interface group positioned at each end; and each column of functional groups has an interface group positioned at each end; and a freeway set of routing conductors configured to transfer signals to said freeway input ports and from said output ports of said interface groups in each of the field programmable gate array tiles wherein each conductor in the set of freeway conductors includes a break buffer located on each freeway conductor between a freeway input port and an output port of each interface group coupled to said conductor, said freeway set of routing conductors comprising: a plurality of vertical conductors that form intersections with a plurality of horizontal conductors; and programmable bi-directional three-state interconnect elements located at said intersections.