Understanding MCU sleep modes and energy savings

Anders Guldahl of Energy Micro describes the energy cost of implementing functions in software and how changes in the distribution of responsibilities between hardware and software reduce that cost. As there is a wide range of sensing interfaces on the market, dedicated sensing logic units that are geared to a particular sensor may not be useful. The author explains how more generic needs can be catered for by making it possible to extract relatively complex processing from software and embed it in hardware designed for low energy consumption.

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