Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Hoja De Datos
Los códigos de productos
AT91SAM9N12-EK
1018
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
45.6.7 AES Key Word Register x
Name: AES_KEYWRx
Address:
0xF000C020
Access: Write-only
• KEYW: Key Word
The four/six/eight 32-bit Key Word registers set the 128-bit/192-bit/256-bit cryptographic key used for encryption/decryption.
AES_KEYWR0 corresponds to the first word of the key and respectively AES_KEYWR3/AES_KEYWR5/AES_KEYWR7 to the
last one.
last one.
These registers are write-only to prevent the key from being read by another application.
31
30
29
28
27
26
25
24
KEYW
23
22
21
20
19
18
17
16
KEYW
15
14
13
12
11
10
9
8
KEYW
7
6
5
4
3
2
1
0
KEYW