ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 501

• Manufacturer Part Number: ATxmega256A3U
• Manufacturer: Atmel Corporation

Specifications of ATxmega256A3U

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 50
• Ext Interrupts: 50
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 10
• Twi (i2c): 2
• Uart: 7
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 16
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.6 to 3.6
• Operating Voltage (vcc): 1.6 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 7
• Output Compare Channels: 22
• Input Capture Channels: 22
• Pwm Channels: 22
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8331A–AVR–07/11
25 Crypto Engines .................................................................................... 316
26 CRC - Cyclic Redundancy Check ....................................................... 324
27 EBI - External Bus Interface ................................................................ 331
28 ADC - Analog to Digital Converter ..................................................... 353
25.1
25.2
25.3
25.4
25.5
25.6
25.7
26.1
26.2
26.3
26.4
26.5
26.6
26.7
26.8
27.1
27.2
27.3
27.4
27.5
27.6
27.7
27.8
27.9
27.10
27.11
27.12
27.13
28.1
28.2
28.3
Features ........................................................................................................316
Overview ........................................................................................................316
DES Instruction ..............................................................................................316
AES Crypto Module .......................................................................................317
Register Description – AES ...........................................................................320
Register Summary - AES ..............................................................................323
Interrupt vector Summary - AES ....................................................................323
Features ........................................................................................................324
Overview ........................................................................................................324
Operation .......................................................................................................325
CRC on Flash memory ..................................................................................325
CRC on DMA Data ........................................................................................326
CRC using the I/O Interface ..........................................................................326
Register Description ......................................................................................327
Register Sumary ...........................................................................................330
Features ........................................................................................................331
Overview ........................................................................................................331
Chip Select ....................................................................................................331
EBI Clock .......................................................................................................333
SRAM Configuration ......................................................................................333
SRAM LPC Configuration ..............................................................................335
SDRAM Configuration ...................................................................................336
Combined SRAM & SDRAM Configuration ...................................................338
I/O Pin and Pin Out Configuration .................................................................340
Register Description – EBI ............................................................................343
Register Description – EBI Chip Select .........................................................348
Register Summary - EBI ................................................................................352
Register Summary - EBI Chip Select ............................................................352
Features ........................................................................................................353
Overview ........................................................................................................353
Input sources .................................................................................................354
Atmel AVR XMEGA AU
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