PIC32MX1XX_12 Datasheet, PDF (79/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

PIC32MX1XX/2XX
REGISTER 5-2: NVMKEY: PROGRAMMING UNLOCK REGISTER
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3 26/18/10/2
31:24
W-0
W-0
W-0
W-0
W-0
W-0
NVMKEY<31:24>
23:16
W-0
W-0
W-0
W-0
W-0
W-0
NVMKEY<23:16>
W-0
W-0
W-0
W-0
W-0
W-0
15:8
NVMKEY<15:8>
7:0
W-0
W-0
W-0
W-0
W-0
NVMKEY<7:0>
W-0
Bit
25/17/9/1
W-0
W-0
W-0
W-0
Bit
24/16/8/0
W-0
W-0
W-0
W-0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-0 NVMKEY<31:0>: Unlock Register bits
These bits are write-only, and read as ‘0’ on any read
Note: This register is used as part of the unlock sequence to prevent inadvertent writes to the PFM.
REGISTER 5-3: NVMADDR: FLASH ADDRESS REGISTER
Bit
Range
31:24
23:16
15:8
7:0
Bit
31/23/15/7
R/W-0
R/W-0
R/W-0
R/W-0
Bit
30/22/14/6
R/W-0
R/W-0
R/W-0
R/W-0
Bit
29/21/13/5
R/W-0
R/W-0
R/W-0
R/W-0
Bit
Bit
28/20/12/4 27/19/11/3
R/W-0
R/W-0
NVMADDR<31:24>
R/W-0
R/W-0
NVMADDR<23:16>
R/W-0
R/W-0
NVMADDR<15:8>
R/W-0
R/W-0
NVMADDR<7:0>
Bit
26/18/10/2
R/W-0
R/W-0
R/W-0
R/W-0
Bit
25/17/9/1
R/W-0
R/W-0
R/W-0
R/W-0
Bit
24/16/8/0
R/W-0
R/W-0
R/W-0
R/W-0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-0
NVMADDR<31:0>: Flash Address bits
Bulk/Chip/PFM Erase: Address is ignored.
Page Erase: Address identifies the page to erase.
Row Program: Address identifies the row to program.
Word Program: Address identifies the word to program.
 2011-2012 Microchip Technology Inc.
Preliminary
DS61168E-page 79