Product Specs

29 CCM — AES CCM mode encryption
Page
274
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
A
0
Id RW Field
Value Id
Value
Description
A R MICSTATUS The result of the MIC check performed during the previous
decryption operation
CheckFailed 0 MIC check failed
CheckPassed 1 MIC check passed
29.9.5 ENABLE
Address offset: 0x500
Enable
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
A
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW ENABLE Enable or disable CCM
Disabled 0 Disable
Enabled 2 Enable
29.9.6 MODE
Address offset: 0x504
Operation mode
Bit number
Id
Reset 0x00000001
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
C
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
B
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
A
1
Id RW Field
Value Id
Value
Description
A
RW
MODE
Encryption
0
The mode of operation to be used
AES CCM packet encryption mode
Decryption
1
AES CCM packet decryption mode
B
RW
DATARATE
1Mbit
0
Data rate that the CCM shall run in synch with
In synch with 1 Mbit data rate
2Mbit
1
In synch with 2 Mbit data rate
C
RW
LENGTH
Packet length configuration
Default
0
Default length. Effective length of LENGTH field is 5-bit
Extended
1
Extended length. Effective length of LENGTH field is 8-bit
29.9.7 CNFPTR
Address offset: 0x508
Pointer to data structure holding AES key and NONCE vector
Bit number
31 30
29
28
27
26
25
24
23 22 21 20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Id
A A
A
A
A
A
A
A
A A A A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Reset 0x00000000
0 0
0
0
0
0
0
0
0 0 0 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Id
RW Field
Value Id
Value
Description
A RW CNFPTR Pointer to the data structure holding the AES key and the CCM NONCE
vector (see Table 1 CCM data structure overview)
29.9.8 INPTR
Address offset: 0x50C
Input pointer