Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet
![Atmel](https://files.manualsbrain.com/attachments/0369829915bda09f9c2e00fb805a7753579683b5/common/fit/150/50/8d2bf08978ec3e5bc63f4343ac5e91ce8d0e40045619fa520d910d64af8f/brand_logo.png)
Product codes
ATSAM4E-EK
391
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
19.5.9 System Controller Write Protection Mode Register
Name:
SYSC_WPMR
Access:
Read/Write
Reset:
WPEN: Write Protection Enable
0: Disables the write protection if WPKEY corresponds to 0x525443 (“RTC” in ASCII).
1: Enables the write protection if WPKEY corresponds to 0x525443 (“RTC” in ASCII).
See
WPKEY: Write Protection Key.
31
30
29
28
27
26
25
24
WPKEY
23
22
21
20
19
18
17
16
WPKEY
15
14
13
12
11
10
9
8
WPKEY
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
WPEN
Value
Name
Description
0x525443
PASSWD
Writing any other value in this field aborts the write operation of the WPEN bit.
Always reads as 0.