Compression of Multiple-Valued Data Serial Streams by Means of Parallel LFSR Signature Analyzer

  • Andrzej Hławiczka
Conference paper
Part of the Informatik-Fachberichte book series (INFORMATIK, volume 84)


It is characteristic of microprocessor systems that, apart from states 1 and 0, also states of high impedance HZ occur in them, among other things, on data and address buses. With regard to this one should take into account the possibility of applying such a state to a signature analyzer. The standard solution here is the application of an appropriate three-state data probe with the unit decoder 3/2 — JK flip-flop [1] which, at the moment of the HZ state detection, prolongs the previously existing state. Thus, the third state is interrpreted as the state 1 or 0, according to the state which had a tested point before its occurence. Such a solution has been approved by the Hewlett Packard Company and then by other companies in their signature analyzers.


Shift Register Error Pattern Burst Error Microprocessor System Binary Stream 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • Andrzej Hławiczka
    • 1
  1. 1.Technical University of GliwicePoland

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