Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet
Product codes
ATSAM4E-EK
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
1146
41.14.17 HSMCI Write Protection Mode Register
Name: HSMCI_WPMR
Address:
0x400800E4
Access: Read/Write
WPEN: Write Protect Enable
0: Disables the Write Protection if WPKEY corresponds to 0x4D4349 (“MCI” in ASCII).
1: Enables the Write Protection if WPKEY corresponds to 0x4D4349 (“MCI” in ASCII).
See
for the list of registers that can be write-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
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
WPEN
Value
Name
Description
0x4D4349
PASSWD
Writing any other value in this field aborts the write operation of the WPEN bit.
Always reads as 0.