Rev. 1.0
105
Si4010-C2
SFR Definition 28.3. SBOX_DATA
SFR Address = 0x86
SFR Definition 28.4. SYS_SET
SFR Address = 0xEE
Bit
7
6
5
4
3
2
1
0
Name
SBOX_DATA[7:0]
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
Name
Function
7:0
SBOX_DATA
[7:0]
AES SBox Processing.
Writing of a value here registers the data for processing. Processed data is regis-
tered into the same register with single CLK_SYS cycle delay. Read from this reg-
ister reads the processed data. The type of SBox processing is controlled by
AES_DECRYPT bit
Bit
7
6
5
4
3
2
1
0
Name
Reserved Reserved Reserved Reserved AES_DECRYPT Reserved Reserved Reserved
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
1
0
0
0
0
Bit
Name
Function
7:5
Reserved
Reserved. Read as 0x0. Write has no effect.
4
Reserved
Reserved. Do not write to this bit.
AES_DECRYPT
AES SBox Hardware Logic Control.
0: SBox is set for encryption.
1: SBox is set for decryption.
Reserved
Reserved. Do not change these values.
