Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK 数据表
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产品代码
AT91SAM9N12-EK
1027
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
46.5.1 SHA Control Register
Name: SHA_CR
Address:
0xF0014000
Access:
Write-only
• START: Start Processing
0: No effect
1: Starts Manual hash algorithm process
• FIRST: First Block of a Message
0: No effect
1: Indicates that the next block to process is the first one of a message.
• SWRST: Software Reset
0: No effect.
1: Resets the SHA. A software triggered hardware reset of the SHA interface is performed.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
SWRST
7
6
5
4
3
2
1
0
–
–
–
FIRST
–
–
–
START