Datasheet

V
CC
RESET
V
BOD
Hysteresis ON:
V
CC
RESET
V
BOD-
V
BOD+
Enabling the BOD33 hysteresis by writing the Hysteresis bit field in the BOD33 register (BOD33.HYST) to
a non-null value will add hysteresis to the BOD33 threshold level.
The hysteresis functionality can be used in Sampling Mode.
Related Links
9.4 NVM User Page Mapping
19.6.5.3.4 Standby Sleep Mode
The BOD33 can be used in standby mode if the BOD is enabled and the Run in Standby bit is written to
'1' (BOD33.RUNSTDBY).
It is set in Low Power mode if the BOD33.STDBYCFG bit is written to '1'.
Related Links
9.4 NVM User Page Mapping
19.6.5.3.5 Backup and Hibernate sleep Modes
To enable the BOD33 in Backup or Hibernate sleep mode, the Run in Backup or Hibernate sleep mode
bits in the BOD33 register (BOD33.RUNBKUP, BOD33.RUNHIB) must be written to '1'. The BOD33 is
automatically set in BOD33 Ultra Low-Power mode. Additionnaly, the BOD33 will operate in Sampling
mode if the BOD33.PSEL bit is non-null. In this state, the voltage monitored by BOD33 is always the
supply of the backup domain, i.e. VDD or VBAT.
Related Links
9.4 NVM User Page Mapping
19.6.5.4 1.2V Brown-Out Detector (BOD12)
The BOD12 is calibrated in production and its calibration configuration is stored in the NVM User Row.
This configuration must not be changed to assure the correct behavior of the BOD12. The BOD12
generates a reset when 1.2V crosses below the preset brown-out level. The BOD12 is always disabled in
Standby, Hibernate, and Backup Sleep modes.
Related Links
9.4 NVM User Page Mapping
19.6.6 Interrupts
The SUPC has the following interrupt sources, which are either synchronous or asynchronous wake-up
sources:
• VDDCORE Voltage Ready (VCORERDY), asynchronous
SAM D5x/E5x Family Data Sheet
SUPC – Supply Controller
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 243