PIC32CX2051MTG64 SFRBU registers

The 4 registers of SFRBU (Special Function Register Backup), from 0x40050630, with their reset value and every field. The PIC32CX2051MTG64 has 2801 registers in 57 peripherals, one page each.

SFRBU Special Function Register Backup

SFRBU_IO_RETENTIONIO Retention Register

Address
0x40050630
Reset
0x00000000
Access
read/write
Size
32-bit
16 fields
FieldBitsWhat it does
NRST16Keep Function on NRST
PD_30_2415Keep Function on PD24 to PD30
PD_23_1614Keep Function on PD16 to PD23
PD_15_813Keep Function on PD8 to PD15
PD_7_012Keep Function on PD0 to PD7
PC_22_1610Keep Function on PC16 to PC22
PC_15_89Keep Function on PC8 to PC15
PC_7_08Keep Function on PC0 to PC7
PB_26_247Keep Function on PB24 to PB26
PB_23_166Keep Function on PB216 to PB23
PB_15_85Keep Function on PB8 to PB15
PB_7_04Keep Function on PB0 to PB7
PA_31_243Keep Function on PA24 to PA31
PA_23_162Keep Function on PA16 to PA23
PA_15_81Keep Function on PA8 to PA15
PA_7_00Keep Function on PA0 to PA7

SFRBU_BODCOREBOD Core Register

Address
0x40050640
Reset
0x00000000
Access
read/write
Size
32-bit
1 field
FieldBitsWhat it does
STATUS0Core Brownout Detector

SFRBU_WPMRWrite Protection Mode Register

Address
0x400506E4
Reset
0x00000000
Access
read/write
Size
32-bit
2 fields
FieldBitsWhat it does
WPEN0Write Protection Enable
WPKEY31:8Write Protection Key
  • 5457490 Writing any other value in this field aborts the write operation of the WPEN bit. Always reads as 0.

SFRBU_WPSRWrite Protection Status Register

Address
0x400506E8
Reset
0x00000000
Access
read/write
Size
32-bit
2 fields
FieldBitsWhat it does
WPSRC23:8Write Protection Source
WPVS0Write Protection Violation Status