C8051F960-A-GQ Silicon Labs, C8051F960-A-GQ Datasheet - Page 185

• Manufacturer Part Number: C8051F960-A-GQ
• Description: 8-bit Microcontrollers - MCU 128KB DC-DC LCD AES
• Manufacturer: Silicon Labs

Specifications of C8051F960-A-GQ

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 24.5 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT

14.4. AES Block Cipher Data Flow
The AES0 module data flow for AES Block Cipher encryption and decryption shown in Figure 14.3. The
data flow is the same for encryption and decryption. The AES0DCF sfr is always configured to route the
AES core output to AES0YOUT. The XOR on the input and output paths are not used.
For an encryption operation, the core is configured for an encryption cipher, the encryption key is written to
AES0KIN, the plaintext is written to the AES0BIN sfr. and the ciphertext is read from AES0YOUT.
For a decryption operation, the core is configured for an decryption cipher, the decryption key is written to
AES0KIN, the ciphertext is written to the AES0BIN sfr. and the plaintext is read from AES0YOUT.
The key size is set to the desired key size.
AES0DCFG
AES0BCFG
AES0KIN
internal state
Figure 14.3. AES Block Cipher Data Flow
machine
Key
In
Rev. 0.5
AES0BIN
Data Out
Data In
Core
AES
AES0YOUT
+
+
Key
Out
AES0XIN
C8051F96x
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