SAM4C_14 Datasheet, PDF (52/1303 Pages) ATMEL Corporation – Atmel | SMART ARM-based Flash MCU

10.3
Reset Controller
The Reset Controller uses the power-on-reset, supply monitor and brownout detector cells.
The Reset Controller returns the source of the last reset to the software. Refer to the description of the field
RSTTYP in the section “Reset Controller (RSTC)”.
The Reset Controller controls the internal resets of the system (or independent reset of CM4P1 processor) and the
NRST pin input/output. It shapes a reset signal for the external devices, simplifying to a minimum connection of a
push-button on the NRST pin to implement a manual reset.
The configuration of the Reset Controller is saved during Backup mode as it is supplied by VDDBU.
10.4
Supply Controller (SUPC)
The Supply Controller controls the power supplies of each section of the processor.
The Supply Controller starts up the device by sequentially enabling the internal power switches and the Voltage
Regulator, then it generates the proper reset signals to the core power supply.
It also sets the system in different low-power modes, wakes it up from a wide range of events.
52 SAM4C Series [DATASHEET]
Atmel-11102E-ATARM-SAM4C32-SAM4C16-SAM4C8-Datasheet_06-Oct-14