Patent ID: 6147509
Filing Date: 2000-11-14
Classification: H03K

Abstract:
A semiconductor logical device comprising:a plurality of logic circuits and programmable memories, each logic circuit coupled to one of the programmable memories, each programmable memory storing logic circuit information to program the coupled logic circuit with logical functions;an input/output circuit, selectively coupled to said plurality of logic circuits, for maintaining signal input to, and signal output from, one or more of said plurality of logic circuits, said input/output circuit having an exclusive memory circuit preventing transitional fluctuations at a time of switching;a circuit information control section, through which logic circuit information is written to said plurality of programmable memory; anda logic circuit selector, coupled to said input/output circuit and being operable to connect and disconnect said input/output circuit from one logic circuit to another logic circuit when the input/output circuit section and/or one of the plurality of logic circuits meet a predetermined condition,wherein any of said logic circuits disconnected from said input/output circuit is available for reprogramming, while any logic circuits connected to said input/output circuit continue to operate.