Patent ID: 7919980
Filing Date: 2011-04-05
Classification: H03K

Abstract:
1. A configurable circuit comprising a plurality of logic blocks, and a programmable bus which can program connections of the plurality of logic blocks, wherein said programmable bus comprises: a plurality of wires which are arranged for each of signal transmission ranges corresponding to said plurality of logic blocks and which connect adjacent logic blocks; a direct wire connection switch which can program whether to directly connect or disconnect said wires between adjacent said signal transmission ranges; an input selector which is arranged to correspond to each of said plurality of logic blocks, which can program a connection with any one of said plurality of wires, and which supplies a signal of a connected wire to said logic block; and a programmable switch which is arranged for each of said signal transmission ranges and which can program whether to make a connection with said wire corresponding to adjacent said signal transmission range via a buffer for each of said plurality of wires, a plurality of programmable switches being arranged for at least one of said plurality of logic blocks, wherein said direct wire connection switch memorizes a programmed resistance state to be non-volatile, and has a smaller conduction state resistance than a MOS transistor of the same occupancy area.