Datasheet

87
SAM9261 [DATASHEET]
Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16
13. Reset Controller (RSTC)
13.1 Overview
The Reset Controller (RSTC), based on power-on reset cells, handles all the resets of the system without any
external components. It reports which reset occurred last.
The Reset Controller also drives independently or simultaneously the external reset and the peripheral and
processor resets.
13.2 Embedded Characteristics
 Based on two Power-on-Reset cells
 Status of the last reset
 Either cold reset, first reset, soft reset, user reset, watchdog reset, wakeup reset
 Controls the internal resets and the NRST pin output
13.3 Block Diagram
Figure 13-1. Reset Controller Block Diagram
NRST
Startup
Counter
proc_nreset
wd_fault
periph_nreset
backup_neset
SLCK
Reset
State
Manager
Reset Controller
rstc_irq
NRST
Manager
exter_nreset
nrst_out
Main Supply
POR
WDRPROC
user_reset
Backup Supply
POR