Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2005-06-15
2008-05-06
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
Reexamination Certificate
active
07368960
ABSTRACT:
Circuits and methods are provided herein for monitoring the integrity of a power supply, the circuits and methods providing additional resources/information for diagnosing a cause behind a reset signal, and in some cases, a reason behind a power failure. A first method described herein provides exemplary steps for monitoring a level of a power supply voltage supplied to one or more system components. A second method describes exemplary steps for monitoring an electrical connection between the power supply (or ground supply) and one or more supply pins. Each of the methods involves monitoring a state of one or more bits stored, e.g., within a status register. The methods may be used separately, or in conjunction with one another, for detecting the occurrence of a power abnormality.
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Li Gabriel M.
Richmond Greg J.
Cypress Semiconductor Corp.
Daffer Kevin L.
Daffer McDaniel LLP
Le Dinh T.
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