ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 26

• 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

4.15.4
4.15.5
4.15.6
4.15.7
8331A–AVR–07/11
DATA0 – Nonvolatile Memory Data Register 0
DATA1 – Nonvolatile Memory Data Register 1
DATA2 – Nonvolatile Memory Data Register Byte 2
CMD – Nonvolatile Memory Command Register
The DATA0, DATA1, and DATA registers represent the 24-bit value DATA. This holds data dur-
ing NVM read, write, and CRC access.
• Bit 7:0 – DATA[7:0]: NVM Data Register Byte 0
This register gives the data value byte 0 when accessing NVM locations.
• Bit 7:0 – DATA[15:8]: NVM Data Register Byte 1
This register gives the data value byte 1 when accessing NVM locations.
• Bit 7:0 – DATA[23:16]: NVM Data Register 2
This register gives the data value byte 2 when accessing NVM locations.
• Bit 7 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write
this bit to zero when this register is written.
Bit
+0x04
Read/Write
Initial Value
Bit
+0x05
Read/Write
Initial Value
Bit
+0x06
Read/Write
Initial Value
Bit
+0x0A
Read/Write
Initial Value
R/W
R/W
R/W
R
7
0
7
0
7
0
7
–
0
R/W
R/W
R/W
R/W
6
0
6
0
6
0
6
0
R/W
R/W
R/W
R/W
5
0
5
0
5
0
5
0
R/W
R/W
R/W
R/W
4
0
4
0
4
0
4
0
DATA[23:16]
DATA[15:8]
DATA[7:0]
CMD[6:0]
Atmel AVR XMEGA AU
R/W
R/W
R/W
R/W
3
0
3
0
3
0
3
0
R/W
R/W
R/W
R/W
2
0
2
0
2
0
2
0
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
DATA0
DATA1
DATA2
CMD
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