12c bus monitor and method for detecting and correcting hanged 12c bus

Systems, methods and media for clearing a hung I2C bus are disclosed. In one embodiment, a monitor monitors the I2C bus data and clock lines and detects if a hung bus occurs. The monitor times packet transactions on the bus to determine if a maximum transaction time has elapsed while the lines are i...

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Bibliographische Detailangaben
1. Verfasser: PATRICK D. BOORADY,VENHE B. LOU,LEE H. WILSON,DANIEL E. HARRIMAN,KOBE L. WALSON
Format: Patent
Sprache:eng
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Zusammenfassung:Systems, methods and media for clearing a hung I2C bus are disclosed. In one embodiment, a monitor monitors the I2C bus data and clock lines and detects if a hung bus occurs. The monitor times packet transactions on the bus to determine if a maximum transaction time has elapsed while the lines are in a hung state. The monitor allows selective reset of individual slave devices and bus masters to clear a hung bus.