ATxmega128A3U Atmel Corporation, ATxmega128A3U Datasheet - Page 398

• Manufacturer Part Number: ATxmega128A3U
• Manufacturer: Atmel Corporation

Specifications of ATxmega128A3U

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 50
• Ext Interrupts: 50
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 10
• Twi (i2c): 2
• Uart: 7
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 8
• Eeprom (bytes): 2048
• 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: 7
• Output Compare Channels: 22
• Input Capture Channels: 22
• Pwm Channels: 22
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

30.9.3
30.9.4
30.9.5
8331A–AVR–07/11
CTRLA – Control Register A
CTRLB – Control Register B
WINCTRL – Window Function Control Register
• Bits 7:2 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 1 – AC1OUT: Analog Comparator 1 Output
Setting this bit makes the output of AC1 available on pin 6 of the port.
• Bit 0 – AC0OUT: Analog Comparator 0 Output
Setting this bit makes the output of AC0 available on pin 7 of the port.
• Bit 7:6 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 5:0 – SCALEFAC[5:0]: Input Voltage Scaling Factor
These bits define the scaling factor for the Vcc voltage
V
• Bit 7:5 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 4 – WEN: Window Mode Enable
Setting this bit enables Window Mode for the Analog Comparator.
V
Bit
+0x05
Read/Write
Initial Value
Bit
+0x04
Read/Write
Initial Value
Bit
+0x06
Read/Write
Initial Value
SCALE
SCALE
, is:
=
V
------------------------------------------------------------ -
CC
R/W
R
7
–
0
R
7
–
0
7
–
0
⋅
(
SCALEFAC
64
R/W
R
6
–
0
R
6
–
0
6
–
0
+
1
)
R/W
R
5
0
R
5
–
0
5
–
0
WEN
R/W
R/W
R
4
0
4
–
0
4
0
R/W
R/W
Atmel AVR XMEGA AU
R
3
0
3
–
0
SCALEFAC[5:0]
3
WINTMODE[1:0]
0
F
. The input to the Analog Comparator,
R/W
R/W
R
2
–
0
2
0
2
0
AC1OUT
R/W
R/W
R/W
1
0
1
0
1
0
WINTLVL[1:0]
AC0OUT
R/W
R/W
R/W
0
0
0
0
0
0
WINCTRL
CTRLA
CTRLB
398