Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD 数据表
产品代码
AT32UC3A3-XPLD
907
32072H–AVR32–10/2012
AT32UC3A3
33.5.7
Key Word n Register
Name: KEYWnR
Access Type: Write-only
Offset:
0x20 +(n-1)*0x04
Reset Value:
0x00000000
• KEYWn[31:0]: Key Word n
Writing the 128-bit/192-bit/256-bit cryptographic key used for encryption/decryption in the four/six/eight 32-bit Key Word
registers.
KEYW1 corresponds to the first word of the key and respectively KEYW4/KEYW6/KEYW8 to the last one.
This field always read as zero to prevent the key from being read by another application.
31
30
29
28
27
26
25
24
KEYWn[31:24]
23
22
21
20
19
18
17
16
KEYWn[23:16]
15
14
13
12
11
10
9
8
KEYWn[15:8]
7
6
5
4
3
2
1
0
KEYWn[7:0]