Datasheet

Table Of Contents
16. RSTC – Reset Controller
16.1 Overview
The Reset Controller (RSTC) manages the reset of the microcontroller. It issues a microcontroller reset,
sets the device to its initial state and allows the reset source to be identified by software.
16.2 Features
Reset the microcontroller and set it to an initial state according to the reset source
Reset cause register for reading the reset source from the application code
Multiple reset sources
Power supply reset sources: POR, BOD12, BOD33
User reset sources: External reset (RESET), Watchdog reset, and System Reset Request
Backup exit sources: Real-Time Counter (RTC) and Battery Backup Power Switch (BBPS)
16.3 Block Diagram
Figure 16-1. Reset System
RESET CONTROLLER
BOD12
BOD33
POR
WDT
RESET
RESET SOURCES
RTC
32KHz clock sources
WDT with ALWAYSON
GCLK with WRTLOCK
Debug Logic
Other Modules
CPU
RCAUSE
RTC
BBPS
SUPC
BKUPEXIT
BACKUP EXIT
16.4 Signal Description
Signal Name Type Description
RESET Digital input External reset
One signal can be mapped on several pins.
SAM D5x/E5x Family Data Sheet
RSTC – Reset Controller
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 196