Datasheet

371
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
19. Supply Controller (SUPC)
19.1 Description
The Supply Controller (SUPC) controls the supply voltages of the system and manages the backup low-power
mode. In this mode, current consumption is reduced to a few microamps for backup power retention. Exit from this
mode is possible on multiple wake-up sources. The SUPC also generates the slow clock by selecting either the
low-power RC oscillator or the low-power crystal oscillator.
19.2 Embedded Characteristics
 Manages the Core Power Supply VDDCORE and the Backup Low-Power Mode by Controlling the
Embedded Voltage Regulator
 A Supply Monitor Detection on VDDIO or a Brownout Detection on VDDCORE Triggers a Core Reset
 Generates the Slow Clock SLCK by Selecting Either the 22-42 kHz Low-Power RC Oscillator or the 32 kHz
Low-Power Crystal Oscillator
 Low-power Tamper Detection on Two Inputs
 Anti-tampering by Immediate Clear of the General-purpose Backup Registers
 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 VDDIO, with Programmable Scan Period and Voltage Threshold