Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
268
16. Supply Controller (SUPC)
16.1 Description
The Supply Controller (SUPC) controls the supply voltage of the Core of the system and manages the Backup Low
Power Mode. In this mode, the current consumption is reduced to a few microamps for Backup power retention.
Exit from this mode is possible on multiple wake-up sources including events on FWUP or WKUP pins, or a Clock
alarm. The SUPC also generates the Slow Clock by selecting either the Low Power RC oscillator or the Low Power
Crystal oscillator.
16.2 Embedded Characteristics
 Manages the Core Power Supply VDDCORE and the Backup Low Power Mode by Controlling the
Embedded Voltage Regulator
 Generates the Slow Clock SLCK, by Selecting Either the 22-42 kHz Low Power RC Oscillator or the 32 kHz
Low Power Crystal Oscillator
 Supports Multiple Wake Up Sources, for Exit from Backup Low Power Mode
 Force Wake Up Pin, with Programmable Debouncing
 16 Wake Up Inputs, with Programmable Debouncing
 Real Time Clock Alarm
 Real Time Timer Alarm
 Supply Monitor Detection on VDDUTMI, with Programmable Scan Period and Voltage Threshold
 A Supply Monitor Detection on VDDUTMI or a Brownout Detection on VDDCORE can Trigger a Core Reset
 Embeds:
 One 22 to 42 kHz Low Power RC Oscillator
 One 32 kHz Low Power Crystal Oscillator
 One Zero-Power Power-On Reset Cell
 One Software Programmable Supply Monitor, on VDDUTMI Located in Backup Section
 One Brownout Detector on VDDCORE Located in the Core