A programmable logic device (10) has a number of programmable logic elements (LEs) (12) which are grouped together in a plurality of logic array blocks (LABs) (14). A general interconnect structure (20, 30) is provided for interconnecting a LAB with other LABs. A LAB-based interconnect structure (24,...http://www.google.fr/patents/US5606266?utm_source=gb-gplus-shareBrevet US5606266 - Programmable logic array integrated circuits with enhanced output routing
Programmable logic array integrated circuits with enhanced output routing