Datasheet

SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
1016
39.7.22 TC Write Protection Mode Register
Name: TC_WPMR
Address: 0x400900E4 (0), 0x400940E4 (1), 0x400980E4 (2)
Access: Read/Write
• WPEN: Write Protection Enable
0: Disables the write protection if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
1: Enables the write protection if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
See Section 39.6.18 “Register Write Protection” for 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
0x54494D PASSWD
Writing any other value in this field aborts the write operation of the WPEN bit.
Always reads as 0.