The 11 registers of NVM (Flash controller (NVM)), from 0xBF800A00, with their reset value and every field. The PIC32MK0256MCJ048 has 1276 registers in 85 peripherals, one page each.
Most PIC32 SFRs have three more registers right after them: CLR at +4, SET at +8 and INV at +C (T1CONCLR, T1CONSET, T1CONINV), which clear, set or flip just the bits written as 1, in one write.
NVM Flash controller (NVM)
NVMCONFlash Programming Control Register
Address
0xBF800A00
Reset
0x00000000
Access
read/write
Size
32-bit
7 fields
Field
Bits
What it does
WR
15
Write Control bit
0 Flash operation is complete or inactive
1 Initiate a Flash operation
WREN
14
Write Enable bit
0 Disable writes to WR bit and enables writes to the NVMOP bits
1 Enable writes to the WR bit and disables writes to the NVMOP bits
WRERR
13
Write Error bit
0 Program or erase sequence completed normally
1 Program or erase sequence did not complete successfully
LVDERR
12
Low-Voltage Detect Error bit
0 Voltage level is acceptable for programming
1 Low-voltage detected (possible data corruption if WRERR is set)
PFSWAP
7
BFSWAP
6
NVMOP
3:0
NVM Operation bits
0 No operation
1 Word program operation: programs word selected by NVMADDR
2 Quad Word (128-bit) program operation: programs the 128-bit Flash word selected by NVMADDR
3 Row program operation: programs row selected by NVMADDR
4 Page erase operation: erases page selected by NVMADDR
5 Program Flash memory erase operation: erases all of Program Flash
6 Reserved
7 Program erase operation: erase all of program Flash memory (all pages must be unprotected)
8 Reserved
9 Reserved
10 Reserved
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved
NVMKEYProgramming Unlock Register
Address
0xBF800A10
Reset
0x00000000
Access
write only
Size
32-bit
NVMADDRFlash Address Register
Address
0xBF800A20
Reset
0x00000000
Access
read/write
Size
32-bit
NVMDATA0Flash Data Register (x = 0-3
Address
0xBF800A30
Reset
0x00000000
Access
read/write
Size
32-bit
NVMDATA1Flash Data Register (x = 0-3
Address
0xBF800A40
Reset
0x00000000
Access
read/write
Size
32-bit
NVMDATA2Flash Data Register (x = 0-3
Address
0xBF800A50
Reset
0x00000000
Access
read/write
Size
32-bit
NVMDATA3Flash Data Register (x = 0-3
Address
0xBF800A60
Reset
0x00000000
Access
read/write
Size
32-bit
NVMSRCADDRSource Data Address Register
Address
0xBF800A70
Reset
0x00000000
Access
read/write
Size
32-bit
NVMPWPProgram Flash Write-Protect Register
Address
0xBF800A80
Reset
0x80000000
Access
read/write
Size
32-bit
2 fields
Field
Bits
What it does
PWP
23:0
PWPULOCK
31
Program Flash Memory Page Write-protect Unlock bit
BETA