Patent ID: 8527821

Claim:
An integrated circuit comprising: at least one scan input; a decompressor including a plurality of decompression codecs, each decompression codec having an input connected to said at least one scan input and an output generating decompressed data according to a codec parameter different from a codec parameter of every other of the plurality of decompression codecs, said plurality of decompression codecs include a high fault tolerant decompression codec having as said codec parameter a first decompression fault tolerance and a low fault tolerant decompression codec having as said codec parameter a second decompression fault tolerance lower than said first decompression fault tolerance; an operational circuit having a plurality of serial scan chains, each serial chain having inputs connected to a selected of one said plurality of decompression codecs and outputs; a compressor including a plurality of compression codecs, each compression codec having an input connected to said output of said plurality of serial scan chain and an output generating compressed data according to a codec parameter different from said codec parameter of every other of the plurality of compression codecs; at least one scan output outputting data from a selected one of said plurality of compression codecs.