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Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet

Product codes
ATSAM4E-EK
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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:
See 
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 
 for the list of registers that can be write-protected.
WPKEY: Write Protection Key.
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WPKEY
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WPKEY
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WPKEY
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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.