AT86RF232
Figure 11-1. ECB Programming SPI Sequence – Encryption.
byte 0 (cmd.)
byte 1 (address)
byte 2 (AES cmd)
byte 3
byte 18
byte 19 (AES cmd)
0 1 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0
SRAM write
0x83
ECB, encryption
data_0[7:0]
… .
data_15[7:0]
1 0 0 0 0 0 0 0
AES start
Summarizing, the following steps are required to perform a security operation using
only one Atmel AT86RF232 SPI access:
1. Configure SPI access
2. Configure AES operation
3. Write 128-bit data block
4. Start AES operation
a) SRAM write, refer to Section 6.2.3
b) Start address 0x83
address 0x83: select ECB mode, direction
addresses 0x84 – 0x93: either plain or ciphertext
address 0x94: start AES operation, ECB mode
This sequence is recommended because the security operation is configured and
started within one SPI transaction.
The ECB encryption operation is illustrated in Figure 11-2 . Figure 11-3 shows the ECB
decryption mode, which is supported in a similar way.
Figure 11-2. ECB Mode – Encryption.
Plaintext
Plaintext
Encryption
Key
Block Cipher
Encryption
Ciphertext
Encryption
Key
Block Cipher
Encryption
Ciphertext
Figure 11-3. ECB Mode – Decryption.
Ciphertext
Ciphertext
Decryption
Key
Block Cipher
Decryption
Plaintext
Decryption
Key
Block Cipher
Decryption
Plaintext
127
8321A – MCU Wireless – 10/11
相关PDF资料
AT88CK201BK BRD CRYPTORF READER AT88RF1354
AT88SC-ADK2 KIT ARIS+ DK CRYPTOMEM/COMPANION
AT88SC3216CRF-MY1 IC EEPROM 32KBIT 13MHZ TAG
ATA-2001 LVDT AMPLIFIER
ATAB5429-9-B BOARD BASESTATN UHF RCVR 915MHZ
ATAB5749-3 BOARD XMITTER FOR 315MHZ ATA5749
ATAKSTK511-3 KIT RF MODULE 315MHZ FOR STK500
ATAKSTK512-3 KIT RF MOD REMOTE 315MHZ UNIDIR
相关代理商/技术参数
AT86RF232-ZXR 功能描述:射频收发器 2.4 GHZ ZIGBEE TRANSCEIVER RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF233-ZF 功能描述:IC RF TXRX+MCU 802.15.4 32-VFQFN 制造商:microchip technology 系列:- 包装:托盘 零件状态:在售 类型:TxRx + MCU 射频系列/标准:802.15.4,通用 ISM > 1GHz 协议:6LoWPAN,Zigbee? 调制:O-QPSK 频率:2.4GHz 数据速率(最大值):2Mbps 功率 - 输出:4dBm 灵敏度:-101dBm 存储容量:128B SRAM 串行接口:SPI 电压 - 电源:1.8 V ~ 3.6 V 电流 - 接收:11.3mA ~ 11.8mA 电流 - 传输:7.2mA ~ 13.8mA 工作温度:-40°C ~ 125°C 封装/外壳:32-VFQFN 裸露焊盘 标准包装:490
AT86RF233-ZFR 功能描述:IC RF TXRX+MCU 802.15.4 32-VFQFN 制造商:microchip technology 系列:- 包装:剪切带(CT) 零件状态:在售 类型:TxRx + MCU 射频系列/标准:802.15.4,通用 ISM > 1GHz 协议:6LoWPAN,Zigbee? 调制:O-QPSK 频率:2.4GHz 数据速率(最大值):2Mbps 功率 - 输出:4dBm 灵敏度:-101dBm 存储容量:128B SRAM 串行接口:SPI 电压 - 电源:1.8 V ~ 3.6 V 电流 - 接收:11.3mA ~ 11.8mA 电流 - 传输:7.2mA ~ 13.8mA 工作温度:-40°C ~ 125°C 封装/外壳:32-VFQFN 裸露焊盘 标准包装:1
AT86RF233-ZU 功能描述:射频收发器 2.4GHz ZigBee Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF233-ZUR 功能描述:射频收发器 2.4GHz ZigBee Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF233-ZUS 功能描述:IC RF TxRx + MCU 802.15.4, General ISM > 1GHz 6LoWPAN, Zigbee? 2.4GHz 32-VFQFN Exposed Pad 制造商:atmel 系列:- 包装:托盘 零件状态:过期 类型:TxRx + MCU 射频系列/标准:802.15.4,通用 ISM > 1GHz 协议:6LoWPAN,Zigbee? 调制:O-QPSK 频率:2.4GHz 数据速率(最大值):2Mbps 功率 - 输出:4dBm 灵敏度:-101dBm 存储容量:128B SRAM 串行接口:SPI GPIO:- 电压 - 电源:1.8 V ~ 3.6 V 电流 - 接收:11.3mA ~ 11.8mA 电流 - 传输:7.2mA ~ 13.8mA 工作温度:-40°C ~ 85°C 封装/外壳:32-VFQFN 裸露焊盘 标准包装:490
AT86RF401 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Smart RF Wireless Data Microtransmitter
AT86RF401E 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Smart RF Wireless Data Microtransmitter