Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK Hoja De Datos
Los códigos de productos
AT91SAM9G25-EK
109
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
13.10.20 AIC Write Protect Mode Register
Name:
AIC_WPMR
Address:
0xFFFFF1E4
Access:
Read-write
Reset:
See
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x414943 ("AIC" in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x414943 ("AIC" in ASCII).
Protects the registers:
•
•
•
•
• WPKEY: Write Protect KEY
Should be written at value 0x414943 ("AIC" 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