Datasheet

1391
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
45.7.25 AFEC Write Protection Mode Register
Name: AFEC_WPMR
Address: 0x400B00E4 (0), 0x400B40E4 (1)
Access: Read/Write
 WPEN: Write Protection Enable
0 = Disables the write protection if WPKEY corresponds to 0x414443 (“ADC” in ASCII).
1 = Enables the write protection if WPKEY corresponds to 0x414443 (“ADC” in ASCII).
See Section 45.6.17 “Register Write Protection” for the list of registers which can be protected.
 WPKEY: Write Protect 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
76543210
–––––––WPEN
Value Name Description
0x414443
PASSWD
Writing any other value in this field aborts the write operation of the WPEN bit.
Always reads as 0.