ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 116

• Manufacturer Part Number: ATxmega32A4U
• Manufacturer: Atmel Corporation

Specifications of ATxmega32A4U

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 7
• Twi (i2c): 2
• Uart: 5
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 4
• Eeprom (bytes): 1024
• 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: 5
• Output Compare Channels: 16
• Input Capture Channels: 16
• Pwm Channels: 16
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

9.4.5
9.4.6
8331A–AVR–07/11
Software Reset
Program and Debug Interface Reset
Figure 9-6.
For information on configuration and use of the WDT, refer to the
page
The software reset makes it possible to issue a system reset from software by writing to the soft-
ware reset bit in the reset control register.The reset will be issued within two CPU clock cycles
after writing the bit. It is not possible to execute any instruction from when a software reset is
requested until it is issued.
Figure 9-7.
The program and debug interface reset contains a separate reset source that is used to reset
the device during external programming and debugging. This reset source is accessible only
from external debuggers and programmers.
126.
SOFTWARE
CC
CC
Watchdog reset.
Software reset.
1-2 2MHz
1-2 2MHz
Cycles
Cycles
Atmel AVR XMEGA AU
”WDT – Watchdog Timer” on
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