SAM3N0C Atmel Corporation, SAM3N0C Datasheet - Page 317

• Manufacturer Part Number: SAM3N0C
• Manufacturer: Atmel Corporation

21.8.5
Name:
Address:
Access:
For more details on MATRIX_WPMR, refer to
• WPEN: Write Protect ENable
0 = Disables the Write Protect if WPKEY corresponds to 0x4D4154 (“MAT” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x4D4154 (“MAT” in ASCII).
Protects the entire MATRIX address space from address offset 0x000 to 0x1FC.
• WPKEY: Write Protect KEY (Write-only)
Should be written at value 0x4D4154 (“MAT” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
11011A–ATARM–04-Oct-10
31
23
15
7
–
Write Protect Mode Register
MATRIX_WPMR
0x400E03E4
Read-write
30
22
14
6
–
29
21
13
5
–
Section 21.7 “Write Protect Registers” on page
28
20
12
4
–
WPKEY
WPKEY
WPKEY
27
19
11
3
–
26
18
10
2
–
311.
25
17
9
1
–
SAM3N
WPEN
24
16
8
0
317