US 7,576,564 B2
Configurable IC with routing circuits with offset connections
Herman Schmit, Palo Alto, Calif. (US); Steven Teig, Menlo Park, Calif. (US); Brad Hutchings, Fremont, Calif. (US); and Randy Renfu Huang, San Jose, Calif. (US)
Assigned to Tabula Inc., Santa Clara, Calif. (US)
Filed on Oct. 08, 2007, as Appl. No. 11/868,959.
Application 11/868959 is a continuation of application No. 11/082193, filed on Mar. 15, 2005, granted, now 7,295,037.
Claims priority of provisional application 60/626322, filed on Nov. 08, 2004.
Prior Publication US 2008/0100339 A1, May 01, 2008
Int. Cl. H03K 19/177 (2006.01)
U.S. Cl. 326—41  [326/38; 326/39] 19 Claims
OG exemplary drawing
 
1. An integrated circuit (“IC”) comprising:
a plurality of configurable tiles arranged in a tile arrangement,
each configurable tile having a set of configurable logic circuits and a set of configurable routing circuits for routing signals between configurable logic circuits;
wherein at least a first routing circuit of a first tile has at least one direct connection with a second circuit of a second tile that does not neighbor the first tile and that is not aligned horizontally or vertically with the first tile in the tile arrangement; and
wherein said at least one direct connection has an intervening buffer circuit that is not an interconnect circuit.