Datasheet

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PSEL[3:0] Name Description
0x6 DIV128 Divide clock by 128
0x7 DIV256 Divide clock by 256
0x8 DIV512 Divide clock by 512
0x9 DIV1K Divide clock by 1024
0xA DIV2K Divide clock by 2048
0xB DIV4K Divide clock by 4096
0xC DIV8K Divide clock by 8192
0xD DIV16K Divide clock by 16384
0xE DIV32K Divide clock by 32768
0xF DIV64K Divide clock by 65536
Bit 9 – CEN Clock Enable
Writing a zero to this bit will stop the BOD33 sampling clock.
Writing a one to this bit will start the BOD33 sampling clock.
Value Description
0
The BOD33 sampling clock is either disabled and stopped, or enabled but not yet stable.
1
The BOD33 sampling clock is either enabled and stable, or disabled but not yet stopped.
Bit 8 – MODE Operation Mode
Value Description
0
The BOD33 operates in continuous mode.
1
The BOD33 operates in sampling mode.
Bit 6 – RUNSTDBY Run in Standby
Value Description
0
The BOD33 is disabled in standby sleep mode.
1
The BOD33 is enabled in standby sleep mode.
Bits 4:3 – ACTION[1:0] BOD33 Action
These bits are used to select the BOD33 action when the supply voltage crosses below the BOD33
threshold.
These bits are loaded from Flash User Row at start-up.
ACTION[1:0] Name Description
0x0 NONE No action
0x1 RESET The BOD33 generates a reset
0x2 INTERRUPT The BOD33 generates an interrupt
SAM D21 Family
SYSCTRL – System Controller
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 228