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    PLA realizations for VLSI state machines (1990)
    In:  Other Sources
    Details
    Publication Date: 2018-12-13
    Description: A major problem associated with state assignment procedures for VLSI controllers is obtaining an assignment that produces minimal or near minimal logic. The key item in Programmable Logic Array (PLA) area minimization is the number of unique product terms required by the design equations. This paper presents a state assignment algorithm for minimizing the number of product terms required to implement a finite state machine using a PLA. Partition algebra with predecessor state information is used to derive a near optimal state assignment. A maximum bound on the number of product terms required can be obtained by inspecting the predecessor state information. The state assignment algorithm presented is much simpler than existing procedures and leads to the same number of product terms or less. An area-efficient PLA structure implemented in a 1.0 micron CMOS process is presented along with a summary of the performance for a controller implemented using this design procedure.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: The First NASA Symposium on VLSI Design; p 213-222
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Implications of Tracey's theorem to asynchronous sequential circuit design (1990)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Tracey's Theorem has long been recognized as essential in generating state assignments for asynchronous sequential circuits. This paper shows that Tracey's Theorem also has a significant impact in generating the design equations. Moreover, this theorem is important to the fundamental understanding of asynchronous sequential operation. The results of this work simplify asynchronous logic design. Moreover, detection of safe circuits is made easier.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: The 2nd 1990 NASA SERC Symposium on VLSI Design; 12 p
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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