ATTINY817-MFR. datasheet(76/492 Pages) MICROCHIP

Part #	ATTINY817-MFR.

Description	AVR짰 Microcontroller with Core Independent Peripherals and picoPower짰 Technology

PDF	492 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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76 / 492 page

12.

RSTCTRL - Reset Controller

12.1

Features

•

Reset the device and set it to an initial state.

•

Reset Flag register for identifying the Reset source in software.

•

Multiple Reset sources:

–

Power supply Reset sources: Brownout Detect (BOD), Power On Reset (POR)

–

User Reset sources: External Reset pin (RESET), Watchdog Reset (WDT), Software Reset

(SW) and UPDI Reset.

12.2

Overview

The Reset Controller (RSTCTRL) manages the Reset of the device. It issues a device Reset, sets the

device to its initial state, and allows the Reset source to be identified by software.

12.2.1

Block Diagram

Figure 12-1. Reset System Overview

RESET SOURCES

POR

BOD

WDT

CPU (SW)

RESET

RESET CONTROLLER

UPDI

All other

Peripherals

TCD pin

override settings

(Loaded from fuses)

External Reset

FILTER

VDD

Pull-up

resistor

12.2.2

Signal Description

Signal

Description

Type

RESET

External Reset (active low)

Digital input

ATtiny417/817

Datasheet Complete

DS40001901B-page 76

ATTINY817-MFR. Datasheet(PDF) 76 Page - Microchip Technology

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