ADVANCED LOW POWER TECHNIQUES
AN725
A D VA N C E D L OW P OWER TECHNIQUES FOR SiM3L1 XX D EVICES
1. Introduction
The system power budget of a low powe...
Description
AN725
A D VA N C E D L OW P OWER TECHNIQUES FOR SiM3L1 XX D EVICES
1. Introduction
The system power budget of a low power system has two components: active and low power mode. Active mode periods include an active core executing code or a larger number of active peripherals. In low power mode periods, the core enters a sleep state and fewer peripherals are active.
Active Mode
Low Power Mode
Figure 1. Defining the Power Budget—Active and Low Power Modes
SiM3L1xx devices have several features to address reducing power consumption in all operational modes to achieve a longer product lifetime in battery-operated systems. This document addresses each of these features and provides guidelines for achieving low power consumption in a variety of configurations and applications.
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2. Key Points
This key topics of this document are as follows:
How
to reduce active mode time and power consumption to reduce low power mode power consumption Measuring the low power modes on an SiM3L1xx MCU card General power-saving tips
How
3. Relevant Documentation
Precision32™ Application Notes are listed on the following website: www.silabs.com/32bit-appnotes.
AN666:
Usage Guide for e SiM3U1xx,SiM3C1xx, and SiM3L1xx DMA and DTM Modules AN720: Precision32™ Optimization Considerations for Code Size and Speed AN667: Getting Started with the Silicon Labs Precision32 IDE AN670: Getting Started with the Silicon Labs Precision32 AppBuilder
Rev. 0.1 9/12
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