Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Datenbogen
Produktcode
ATSAM4S-XPLD
595
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
31.9.17 SSC Write Protect Mode Register
Name:
SSC_WPMR
Address:
0x400040E4
Access:
Read-write
Reset:
See
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x535343 (“SSC” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x535343 (“SSC” in ASCII).
Protects the registers:
•
•
•
•
•
•
•
• WPKEY: Write Protect KEY
Should be written at value 0x535343 (“SSC” in ASCII). Writing any other value in this field aborts the write operation of the WPEN
bit. Always reads as 0.
bit. Always reads as 0.
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