Datasheet

PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
DS60001320B-page 106 Preliminary  2015 Microchip Technology Inc.
REGISTER 5-7: NVMPWP: PROGRAM FLASH WRITE-PROTECT REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R/W-1 U-0 U-0 U-0 U-0 U-0 U-0 U-0
PWPULOCK — — — — — — —
23:16
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PWP<23:16>
15:8
R/W-0 R/W-0 R-0 R-0 R-0 R-0 R-0 R-0
PWP<15:8>
7:0
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
PWP<7:0>
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31 PWPULOCK: Program Flash Memory Page Write-protect Unlock bit
1 = Register is not locked and can be modified
0 = Register is locked and cannot be modified
This bit is only clearable and cannot be set except by any reset.
bit 30-24 Unimplemented: Read as ‘0’
bit 23-0 PWP<23:0>: Flash Program Write-protect (Page) Address bits
Physical memory below address 0x1Dxxxxxx is write protected, where ‘xxxxxx’ is specified by PWP<23:0>.
When PWP<23:0> has a value of ‘0’, write protection is disabled for the entire program Flash. If the specified
address falls within the page, the entire page and all pages below the current page will be protected.
Note: The bits in this register are only writable when the NVMKEY unlock sequence is followed.