State Skip LFSRs: Bridging the Gap Between Test Data Compression and Test Set Embedding for IP Cores

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Provided by: edaa
Topic: Big Data
Format: PDF
The authors present a new type of linear feedback shift registers, state skip LFSRs. State skip LFSRs are normal LFSRs with the addition of a small linear circuit, the state skip circuit, which can be used, instead of the characteristic-polynomial feedback structure, for advancing the state of the LFSR. In such a case, the LFSR performs successive jumps of constant length in its state sequence, since the state skip circuit omits a predetermined number of states by calculating directly the state after them.
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