AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 134

• Manufacturer Part Number: AT86RF212
• Manufacturer: Atmel Corporation

Specifications of AT86RF212

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 700/800/900MHz
• Max Data Rate (mb/s): 1
• Antenna Diversity: No
• External Pa Control: Yes
• Power Output (dbm): 10
• Receiver Sensitivity (dbm): -110
• Receive Current Consumption (ma): 9.0
• Transmit Current Consumption (ma): 18 at 5dBm
• Link Budget (dbm): 120

Figure 9-1. ECB Programming SPI Sequence – Encryption
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AT86RF212
sequence. Register AES_CTRL_MIRROR is a mirrored version of register 0x83
(AES_CTRL).
In summary, the following steps are required to perform a security operation using only
one SPI access:
1. Configure SPI access
2. Configure AES operation
3. Write 128-bit data block
4. Start AES operation
This sequence is recommended because the security operation is configured and
started within one SPI transaction.
The ECB encryption operation is illustrated in Figure 9-2. Figure 9-3 shows the ECB
decryption mode, which is supported in a similar way.
Figure 9-2. ECB Mode - Encryption
Figure 9-3. ECB Mode - Decryption
a) SRAM write, refer to section 4.3
b) Start address 0x83
Address 0x83: select ECB mode and direction
Addresses 0x84 – 0x93: either plain or cipher text
Address 0x94: start AES operation, ECB mode
8168C-MCU Wireless-02/10