Texas Instruments CC2650DK ユーザーズマニュアル
Cryptography Registers
10.2.1.15 KEYREADAREA Register (Offset = 40Ch) [reset = X]
KEYREADAREA is shown in
and described in
Key Read Area
Figure 10-17. KEYREADAREA Register
31
30
29
28
27
26
25
24
BUSY
RESERVED
R-X
R/W-X
23
22
21
20
19
18
17
16
RESERVED
R/W-X
15
14
13
12
11
10
9
8
RESERVED
R/W-X
7
6
5
4
3
2
1
0
RESERVED
RAM_AREA
R/W-X
R/W-8h
Table 10-25. KEYREADAREA Register Field Descriptions
Bit
Field
Type
Reset
Description
31
BUSY
R
X
Key store operation busy status flag (read only) 0: operation is
completed. 1: operation is not completed and the key store is busy.
completed. 1: operation is not completed and the key store is busy.
30-4
RESERVED
R/W
X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
other value than the reset value may result in undefined behavior.
3-0
RAM_AREA
R/W
8h
Selects the area of the key store RAM from where the key needs to
be read that will be written to the AES engine. Only RAM areas that
contain valid written keys can be selected.
be read that will be written to the AES engine. Only RAM areas that
contain valid written keys can be selected.
0h = RAM Area 0
1h = RAM Area 1
2h = RAM Area 2
3h = RAM Area 3
4h = RAM Area 4
5h = RAM Area 5
6h = RAM Area 6
7h = RAM Area 7
8h = No RAM
840
SWCU117A – February 2015 – Revised March 2015
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