The invention in the simplest form is a programmable logic device consisting of gate arrays, external I/O endpoints, and an embedded switch fabric configurable for connecting gates to gates, endpoints to endpoints and gates to endpoints. The architecture may employ a fabric interface of non-blocking...http://www.google.com.hk/patents/US7733125?utm_source=gb-gplus-share專利 US7733125 - Programmable logic device with embedded switch fabric
