Datasheet

1339
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
44.7.8 ACC Write Protection Mode Register
Name: ACC_WPMR
Address: 0x400BC0E4
Access: Read/Write
Reset:See Table 44-4
 WPEN: Write Protection Enable
0: Disables the write protection if WPKEY corresponds to 0x414343 (“ACC” in ASCII).
1: Enables the write protection if WPKEY corresponds to 0x414343 (“ACC” in ASCII).
See “Register Write Protection” on page 1329 for the list of registers that can be write-protected.
 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
76543210
–––––––WPEN
Value Name Description
0x414343 PASSWD
Writing any other value in this field aborts the write operation of the WPEN bit.
Always reads as 0.