Microchip ATSAME51N20A Manual

Microchip Ikke kategoriseret ATSAME51N20A

Læs gratis den danske manual til Microchip ATSAME51N20A (12 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 18 personer og har en gennemsnitlig bedømmelse på 4.5 stjerner ud af 9.5 anmeldelser. Har du et spørgsmål om Microchip ATSAME51N20A, eller vil du spørge andre brugere om produktet?

Download PDF

Side 1/12

TB3183

What is SleepWalking? How it Helps to Reduce Power

Consumption

Introduction

The SleepWalking feature is available in ARM® Cortex®-based Microchip's microcontrollers (MCUs). This

feature allows temporary and asynchronous wake up of a peripheral to perform a task without waking up

the CPU from Standby mode.

In MCU operation, the internal timer wakes up the CPU to check if certain conditions have occurred (i.e.,

battery voltage monitoring using the ADC), or the peripheral interrupts have woke up the CPU. The CPU

and RAM traditionally consume the majority of the power in Active mode. Therefore, waking up the CPU

from Low-Power mode to check for these conditions and start relevant actions in an Active state will

consume a lot of power.

SleepWalking allows the CPU to remain in Low-Power mode until a relevant event occurs. When the CPU

is in Low-Power mode, that is, Standby mode in Cortex-M0+ MCU, the peripheral can request the clock to

perform its task. The CPU no longer needs to check whether or not a specific condition is present, such

as an address match condition on the I2C interface or a sensor connected to an ADC that has exceeded

a specific threshold. With SleepWalking, this is done entirely by the peripherals with the help of an event

system.

The following are basic implementation steps of SleepWalking:

• Main clocks and peripheral clocks are stopped in Sleep mode to save power

• Peripherals supporting SleepWalking (For example, peripherals supporting on-demand feature in

Cortex-M0+ MCUs) individually request clocks in Sleep mode

• Clocks remain active until a specific peripheral operation is complete

The CPU and RAM will not wake up when sleepwalking supported peripherals perform the tasks, unless

the CPU needs to perform an operation.

Table of Contents

Introduction......................................................................................................................1

1. SleepWalking Support in SAM MCUs........................................................................3

2. Sleepwalking Implementation ...................................................................................5

3. Relevant Resources.................................................................................................. 8

The Microchip Web Site.................................................................................................. 9

Customer Change Notification Service............................................................................9

Customer Support........................................................................................................... 9

Microchip Devices Code Protection Feature................................................................... 9

Legal Notice...................................................................................................................10

Trademarks................................................................................................................... 10

Quality Management System Certified by DNV.............................................................11

Worldwide Sales and Service........................................................................................12

TB3183

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	ATSAME51N20A

Har du brug for hjælp?

Hvis du har brug for hjælp til Microchip ATSAME51N20A stil et spørgsmål nedenfor, og andre brugere vil svare dig

Dit navn*

Din email*

Skriv dit spørgsmål her

Ikke kategoriseret Microchip Manualer

Microchip HS12-100D0/12DS2F Manual

18 Februar 2025

Microchip HSA0-040SDA/A0SA10 Manual

18 Februar 2025

Microchip HSA0-040SIA/A0S1F Manual

18 Februar 2025

Microchip HT12-100S0s/12ST25 Manual

17 Februar 2025

Microchip EMC2103-2 Manual

17 Februar 2025

Microchip EMC1047 Manual

17 Februar 2025

Microchip HCS201 Manual

17 Februar 2025

Microchip LE9653 Manual

17 Februar 2025

Microchip LAN7430 Manual

17 Februar 2025

Microchip HCS500 Manual

17 Februar 2025

Ikke kategoriseret Manualer

Nyeste Ikke kategoriseret Manualer

Planet XGPN-100 Manual

15 Juni 2025

Proficook PC-EKA 1283 Manual

15 Juni 2025

OmniMount OBSP8 Manual

15 Juni 2025

Levenhuk FS10 Manual

15 Juni 2025

Vestil PM4-2148-LP Manual

15 Juni 2025

ElectriQ STRV-W1-B Manual

15 Juni 2025

Adler AD 4521 Manual

15 Juni 2025

AMX HydraPort HPX-AV102 Manual

15 Juni 2025

Hughes & Kettner Red Box Mk II Manual

15 Juni 2025

Hughes & Kettner Quantum QC 412 Manual

15 Juni 2025