C8051F966-A-GQ Silicon Labs, C8051F966-A-GQ Datasheet - Page 202

• Manufacturer Part Number: C8051F966-A-GQ
• Description: 8-bit Microcontrollers - MCU 32KB DC-DC LCD AES
• Manufacturer: Silicon Labs

Specifications of C8051F966-A-GQ

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 24.5 MHz
• Program Memory Size: 32 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

C8051F96x
SFR Definition 14.1. AES0BCFG: AES Block Configuration
SFR Address = 0xE9; SFR page = 0x2; Not bit-Addressable
202
Name
Reset
1:0
Bit
Type
5
4
3
2
Bit
SIZE[1:0] AES Key Size.
DONE
Name
BUSY
ENC
EN
R
7
0
Done Flag.
This bit is set upon completion of an encryption operation. When used with the DMA,
the DONE bit signals the start of the out transfer. When used without the DMA, the
done flag indicates data is ready to be read from AES0YOUT. The DONE bit is not
cleared by hardware and must be cleared to zero by software at the start of the next
encryption operation.
AES BUSY.
This bit is set while the AES block is engaged in an encryption or decryption operation.
This bit is read only.
AES Enable.
This bit should be set to 1 to initiate an encryption or decryption operation. Clearing this
bit to 0 will reset the AES module.
Encryption/Decryption Select.
This is set to 1 to select an encryption operation. Clearing this bit to 0 will select a
decryption operation.
These bits select the key size for encryption/decryption.
00: 128-bits (16-bytes)
01: 198-bits (24-bytes)
10: 256-bits (32-bytes)
11: Reserved
R
6
0
DONE
R/W
5
0
BUSY
Rev. 0.5
R
4
0
Function
R/W
EN
3
0
ENC
R/W
2
0
1
0
KSIZE
R/W
0
0