Rainbow Electronics AT86RF231 User Manual
Page 135
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135
8111A–AVR–05/08
AT86RF231
• Bits 3 - AES_DIR
This register bit sets the AES operation direction, either encryption or decryption.
• Bit [2:0] - Reserved
Register 0x94 (AES_CON_MIRROR):
Register 0x94 is a mirrored version of register 0x83 (AES_CON), for details refer to register
0x83 (AES_CON).
This register could be used to start a security operation within a single SRAM access by append-
ing it to the data stream and setting register bit AES_REQUEST = 1.
Table 11-7.
AES Direction
Register Bit
Value
Description
AES_DIR
0
AES encryption (ECB, CBC)
1
AES decryption
Bit
7
6
5
4
3
2
1
0
+0x83
AES_REQUEST
AES_MODE
AES_DIR
Reserved
AES_CON
Read/Write
W
R/W
R/W
R/W
R/W
R
R
R
Reset Value
0
0
0
0
0
0
0
0
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