AT86RF212 Datasheet, PDF (137/173 Pages) ATMEL Corporation – Low Power 800/900 MHz Transceiver for IEEE 802.15.4- 2006, ZigbeeTM, and ISM Applications

8168A-AVR-06/08
AT86RF212
Bit
Name
Read/Write
Reset Value
3
Reserved
R
0
2
Reserved
R
0
1
Reserved
R
0
0
AES_RY
R
0
• Bit 7:1 –Reserved
• Bit 0 – AES_RY
Table 9-4. AES Core Operation Status
Register Bit
Value
Description
AES_RY
0
AES operation has not been completed
1
AES operation has been completed
Register 0x83 (AES_CON):
This register controls the operation of the security module. A read or write access
during AES operation terminates the current processing.
Table 9-5. Register 0x83 (AES_CON)
Bit
7
6
5
4
Name
AES_REQUEST
AES_MODE
AES_MODE
AES_MODE
Read/Write W
R/W
R/W
R/W
Reset Value 0
0
0
0
Bit
Name
Read/Write
Reset Value
3
AES_DIR
R/W
0
2
Reserved
R
0
1
Reserved
R
0
0
Reserved
R
0
• Bit 7 – AES_REQUEST
A write access with AES_REQUEST = 1 initiates the AES operation.
• Bit 6:4 – AES_MODE
This register bit sets the AES operation mode.
Table 9-6. AES Mode
Register Bits
Value
Description
AES_MODE
0
ECB mode, refer to 9.1.4.1
1
KEY mode, refer to 9.1.3
2
CBC mode, refer to 9.1.4.2
3–7
Reserved
• Bits 3 – AES_DIR
This register bit sets the AES operation direction, either encryption or decryption.
Table 9-7. AES Direction
Register Bit
Value
Description
AES_DIR
0
AES encryption (ECB, CBC)
137