Texas Instruments CC2650DK Benutzerhandbuch
Cryptography Registers
10.2.1.14 KEYSIZE Register (Offset = 408h) [reset = X]
KEYSIZE is shown in
and described in
.
Key Size This register defines the size of the keys that are written with DMA.
Figure 10-16. KEYSIZE Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESERVED
R/W-X
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESERVED
SIZE
R/W-X
R/W-1h
Table 10-24. KEYSIZE Register Field Descriptions
Bit
Field
Type
Reset
Description
31-2
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.
1-0
SIZE
R/W
1h
Key size When writing to this register, KEYWRITTENAREA will be
reset. Note: For the Crypto peripheral this field is fixed to 128 bits.
For software compatibility KEYWRITTENAREA will be reset when
writing to this register.
reset. Note: For the Crypto peripheral this field is fixed to 128 bits.
For software compatibility KEYWRITTENAREA will be reset when
writing to this register.
1h = 128_BIT : 128 bits
2h = 192_BIT : Not supported
3h = 256_BIT : Not supported
839
SWCU117A – February 2015 – Revised March 2015
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