Power management and control for a microcontroller
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United States of America Patent
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Dec 16, 2003
Grant Date -
N/A
app pub date -
Feb 29, 2000
filing date -
Feb 29, 2000
priority date (Note) -
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Abstract
A power management system for a microcontroller. The power management system includes a power management state machine for controlling a power mode of a central processing unit (CPU) and each subsystem within the microcontroller. Each microcontroller subsystem is connected to the system through a configurable peripheral interface (FPI). Each FPI includes a software configuration register (SFR) that can be configured by an operating system or application program. The SFR for the various FPIs can be preconfigured to allow the response to each of the power modes of the power management state machine to be independently controlled for each subsystem.
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