ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 52

• 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

4.24
4.25
Table 4-14.
8331A–AVR–07/11
Address
Address
+0x0C
+0x0D
+0x0A
+0x0B
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
+0x08
+0x09
+0x0A
+0x0B
+0x0E
+0x0F
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
+0x08
+0x09
Offset
0x00
0x02
Register Summary - General Purpose I/O Registers
Register Summary - MCU Control
Name
EVSYSLOCK
AWEXLOCK
Name
JTAGUID
Reserved
Reserved
Reserved
ANAINIT
NVM interrupt vectors and their word offset address from the NVM controller interrupt base.
MCUCR
DEVID0
DEVID1
DEVID2
GPIOR10
GPIOR11
GPIOR12
GPIOR13
GPIOR14
GPIOR15
REVID
GPIOR0
GPIOR1
GPIOR2
GPIOR3
GPIOR4
GPIOR5
GPIOR6
GPIOR7
GPIOR8
GPIOR9
Source
EE_vect
SPM_vect
Bit 7
Interrupt Vector Summary - NVM Controller
Bit 7
–
–
–
–
–
–
–
–
Bit 6
Bit 6
–
–
–
–
–
–
–
–
Interrupt Description
Nonvolatile memory EEPROM interrupt vector
Nonvolatile memory SPM interrupt vector
Bit 5
Bit 5
–
–
–
–
–
–
–
–
EVSYS1LOC
Bit 4
Bit 4
–
–
–
–
–
–
–
JTAGUID[7:0]
DEVID0[7:0]
DEVID1[7:0]
DEVID2[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
GPIOR[7:0]
Bit 3
Bit 3
–
–
–
–
–
–
STARTUPDLYB[1:0]
Atmel AVR XMEGA AU
AWEXELOCK
Bit 2
Bit 2
–
–
–
–
–
REVID[3:0]
Bit 1
Bit 1
STARTUPDLYA[1:0]
–
–
–
–
–
–
EVSYS0LOCK
AWEXCLOCK
JTAGD
Bit 0
Bit 0
–
–
–
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