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Manage dynamic power in MCU using non-maskable interrupt

Posted: 17 Dec 2008     Print Version  Bookmark and Share

Keywords:microcontroller  real-time clock  non-maskable 

As portable systems become increasingly power-conscious, the need for smart power management becomes equally important. Besides the main processor, an auxiliary microcontroller unit often resides on such systems to take care of house keeping activities such as various user interfaces and a real-time clock, which has to tick even when the system is powered off.

In this article by Ajit Basarur, Shantanu Prasad Prabhudesai and Nazmul Hoda of Ittiam Systems, they suggest a mechanism to implement power management scheme for the MCU based on system switch on and off states by using its non-maskable interrupt pin.

View the PDF document for more information.





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