How to Quickly Wake Up Cortex® M0+ Based MCU Through External Events
Introduction
The Microchip 32-bit Arm® Cortex®-M0+ microcontroller features the ability to reduce power consumption through various sleep modes such as idle, standby, backup, and shutdown. When entering sleep mode, the CPU stops running, and some modules and clock domains are automatically turned off depending on the selected sleep mode. The CPU can then be awakened by external events (such as interrupts from ADC, RTC, and DMA) and return to working mode.
Waking the device from sleep mode is not instantaneous and may vary depending on the sleep mode, clock, and peripherals used in the application.
This document describes the wake-up time and how to configure the device to optimize wake-up time.
Main Content
Wake-up Time
– Principles
– Details of SAM C2x and SAM DA1/D09/D1x/D2x Series
– Details of SAM L2x
Optimize Wake-up Time
– Devices of SAM C2x and SAM DA1/D09/D1x/D2x Series
Measure Wake-up Time
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