EFM32WG Datasheet, PDF (120/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications.

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10.5.7 EMU_BUINACT - Backup mode inactive configuration register
Offset
0x038
Reset
Access
Bit Position
Name
Bit
Name
31:7
Reserved
6:5
PWRCON
Reset
Access Description
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
0x0
RW
Power connection configuration when not in Backup mode
Value
0
1
2
3
Mode
NONE
BUMAIN
MAINBU
NODIODE
Description
No connection.
Main power and backup power are connected through a diode, allowing current to flow
from backup power source to main power source, but not the other way.
Main power and backup power are connected through a diode, allowing current to flow
from main power source to backup power source, but not the other way.
Main power and backup power are connected without diode.
4:3
BUENRANGE
0x0
RW
Threshold range for Backup BOD sensing on VDD_DREG when not in backup mode.
2:0
BUENTHRES
0x0
RW
Threshold for Backup BOD sensing on VDD_DREG when not in backup mode.
10.5.8 EMU_BUACT - Backup mode active configuration register
Offset
0x03C
Reset
Access
Bit Position
Name
Bit
Name
31:7
Reserved
6:5
PWRCON
Reset
Access Description
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
0x0
RW
Power connection configuration when in Backup mode
Value
0
1
Mode
NONE
BUMAIN
2
MAINBU
3
NODIODE
4:3
BUEXRANGE
0x0
Description
No connection.
Main power and backup power are connected through a diode, allowing current to flow
from backup power source to main power source, but not the other way.
Main power and backup power are connected through a diode, allowing current to flow
from main power source to backup power source, but not the other way.
Main power and backup power are connected without diode.
RW
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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