AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 893

• Manufacturer Part Number: AT32UC3A4256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A4256

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

• CKEY: Countermeasure Key
• CFBS: Cipher Feedback Data Size
• LOD: Last Output Data Mode
• OPMOD: Operation Mode
• KEYSIZE: Key Size
32072G–11/2011
OPMOD
KEYSIZE
Others
Others
Others
CFBS
0
1
2
3
4
0
1
Writing the value 0xE to this field allows the CTYPE field to be modified.
Writing another value to this field has no effect.
This bit always reads as zero.
Writing a one to this bit will enabled the LOD mode.
Writing a zero to this bit will disabled the LOD mode.
These mode is described in the
0
1
2
3
4
Description
ECB: Electronic Code Book mode
CBC: Cipher Block Chaining mode
OFB: Output Feedback mode
CFB: Cipher Feedback mode
CTR: Counter mode
Reserved
Description
AES Key Size is 128 bits
AES Key Size is 192 bits
AES Key Size is 256 bits
Reserved
Description
128-bit
64-bit
32-bit
16-bit
8-bit
Table 32-3 on page
888.
893