Reset domain crossing management using unified power format
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United States of America Patent
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May 14, 2019
Grant Date -
Jan 4, 2018
app pub date -
Jun 26, 2017
filing date -
Jun 30, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Information from a circuit design's unified power format (UPF) description is utilized to automate the management of reset domain crossings (RDCs). The UPF description is utilized to identify signals that generate both RDC and power domain crossings (PDCs), thereby allowing a circuit designer to efficiently utilize a common (shared) isolation circuit that functions to manage both the RDC (i.e., during reset functions) and the PDC (i.e., during power management functions). A modified UPF description is introduced that facilitates automated management of RDC issues by treating the reset domains as pseudo-power domains, and utilizing UPF analysis and verification tools to automatically generate both shared and non-shared resources for both RDC and PDC issues.
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