ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 43

• 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

4.17.25
4.17.26
4.17.27
4.17.28
8331A–AVR–07/11
TEMPSENSE1 – Temperature Sensor Calibration Register 1
DACA0OFFCAL – DACA Offset Calibration Register
DACA0GAINCAL – DACA Gain Calibration Register
DACB0OFFCAL – DACB Offset Calibration Register
• Bit 7:0 – TEMPSENSE1[7:0]: Temperature Sensor Calibration Byte 1
This byte contains byte 1 of the temperature measurement.
• Bit 7:0 – DACA0OFFCAL[7:0]: DACA0 Offset Calibration Byte
This byte contains the offset calibration value for channel 0 in the digitaltoanalog converter A
(DACA). Calibration is done during production test of the device. The calibration byte is not
loaded automatically into the DAC channel 0 offset calibration register, so this must be done
from software.
• Bit 7:0 – DACA0GAINCAL[7:0]: DACA0 Gain Calibration Byte
This byte contains the gain calibration value for channel 0 in the digitaltoanalog converter A
(DACA). Calibration is done during production test of the device. The calibration byte is not
loaded automatically into the DAC gain calibration register, so this must be done from software.
Bit
+0x31
Read/Write
Initial Value
Bit
+0x2F
Read/Write
Initial Value
Bit
+0x30
Read/Write
Initial Value
Bit
+0x32
Read/Write
Initial Value
7
R
0
7
R
0
7
R
0
7
R
0
R
6
0
R
R
R
6
0
6
0
6
0
R
5
0
R
R
R
5
0
5
0
5
0
R
4
0
R
R
R
4
0
4
0
4
0
DACA0GAINCAL[7:0]
DACA0OFFCAL[7:0]
DACB0OFFCAL[7:0]
TEMPSENSE1[7:0]
R
3
x
R
R
R
3
x
3
x
3
x
Atmel AVR XMEGA AU
R
2
x
R
R
R
2
x
2
x
2
x
R
1
x
R
R
R
1
x
1
x
1
x
R
0
x
R
R
R
0
x
0
x
0
x
DACA0GAINCAL
DACA0OFFCAL
DACB0OFFCAL
TEMPSENSE1
43