SAM4L Datasheet, PDF (907/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

33.7.8 Write Protect Mode Register
Name:
WPMR
Access:
Read/Write
Offset:
0xE4
Reset Value:
0x00000000
31
30
29
23
22
21
15
14
13
7
6
5
–
–
–
28
27
WPKEY
20
19
WPKEY
12
11
WPKEY
4
3
–
–
• WPKEY: Write Protect KEY
This security code is needed to set/reset the WPEN bit.
Must be filled with “DAC” ASCII code (0x444143).
• WPEN: Write Protect Enable
0 = Disables the Write Protect.
1 = Enables the Write Protect.
ATSAM4L4/L2
26
25
24
18
17
16
10
9
8
2
1
0
–
–
WPEN
42023C–SAM–02/2013
907