The Second Generation MOTIS Mixed-Mode Simulator

Authors:
  • CLC.-Y. Lo
    C.-Y. Lo
  • HNH.N. Nham
    H.N. Nham
  • PSP. Subramaniam
    P. Subramaniam

Abstract
This paper describes the second generation MOTIS mixed-mode simulator. In particular, It extends the current modeling capabilities to include resistors, floating capacitors, and bidirectional transmission gates. It employs a relaxation algorithm with local time-step control for timing simulation, and a switch level approach for unit delay simulation. It provides logic and timing verification for general MOS circuits in a mixed-mode environment. The new simulator is being used for production chips, and it is more accurate, flexible, and efficient than the existing MOTIS mixed-mode simulator.

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