ATxmega16A4U Atmel Corporation, ATxmega16A4U Datasheet - Page 37

• Manufacturer Part Number: ATxmega16A4U
• Manufacturer: Atmel Corporation

Specifications of ATxmega16A4U

• Flash (kbytes): 16 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): 3.3
• 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

4.17.3
4.17.4
4.17.5
8331A–AVR–07/11
RCOSC32K – Internal 32.768kHz Oscillator Calibration Register
RCOSC32M – Internal 32MHz Oscillator Calibration Register
RCOSC32MA – Internal 32MHz RC Oscillator Calibration Register
• Bit 7:0 – RCOSC32K[7:0]: Internal 32.768kHz Oscillator Calibration Value
This byte contains the oscillator calibration value for the internal 32.768kHz oscillator. Calibra-
tion of the oscillator is performed during production test of the device. During reset this value is
automatically loaded into the calibration register for the 32.768kHz oscillator. Refer to
”RC32KCAL – 32kHz Oscillator Calibration Register” on page 97
• Bit 7:0 – RCOSC32M[7:0]: Internal 32MHz Oscillator Calibration Value
This byte contains the oscillator calibration value for the internal 32MHz oscillator. Calibration of
the oscillator is performed during production test of the device. During reset this value is auto-
matically loaded into calibration register B for the 32MHz DFLL. Refer to
Calibration Register B” on page 100
• Bit 7:0 – RCOSC32MA[7:0]: Internal 32MHz Oscillator Calibration Value
This byte contains the oscillator calibration value for the internal 32MHz oscillator. Calibration of
the oscillator is performed during production test of the device. During reset this value is auto-
matically loaded into calibration register A for the 32MHz DFLL. Refer to
Calibration Register A” on page 99
Bit
+0x02
Read/Write
Initial Value
Bit
+0x03
Read/Write
Initial Value
Bit
+0x04
Read/Write
Initial Value
R
R
R
7
x
7
x
7
x
R
R
R
6
x
6
x
6
x
R
R
R
5
5
5
x
x
x
for more details.
for more details.
4
R
4
R
4
R
x
x
x
RCOSC32MA[7:0]
RCOSC32M[7:0]
RCOSC32K[7:0]
R
R
R
3
x
3
x
3
x
Atmel AVR XMEGA AU
R
R
R
2
2
2
x
x
x
for more details.
R
R
R
1
1
1
x
x
x
0
R
0
R
0
R
x
x
x
”CALB – DFLL
”CALA – DFLL
RCOSC32MA
RCOSC32K
RCOSC32M
37