ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 101

• 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

7.11.5
8331A–AVR–07/11
COMP2 – DFLL Compare Resgister Byte 2
• Bit 7:0 – COMP2[15:8]: Compare Register Byte 2
These bits hold byte 2 of the 16-bit compare register.
Table 7-11.
Bit
+0x06
Read/Write
Initial Value
Oscillator Frequency (MHz)
R/W
7
0
Nominal DFLL32M COMP values for different output frequencies.
R/W
6
0
30.0
32.0
34.0
36.0
38.0
40.0
42.0
44.0
46.0
48.0
50.0
52.0
54.0
R/W
5
0
R/W
4
0
COMP[15:8]
R/W
3
0
Atmel AVR XMEGA AU
COMP Value (Clk
R/W
2
0
R/W
0xBEBC
0xCDFE
0xA7D8
0xC65D
0xAF79
0xB71B
1
0
0x7270
0x7A12
0x81B3
0x8954
0x90F5
0x9896
0xA037
RCnCREF
R/W
0
0
= 1.024kHz)
COMP2
101