ATxmega64A3 Atmel Corporation, ATxmega64A3 Datasheet - Page 333

• Manufacturer Part Number: ATxmega64A3
• Manufacturer: Atmel Corporation

Specifications of ATxmega64A3

• Flash (kbytes): 64 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 Speed: No
• Usb Interface: No
• 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): 4
• 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

27.9.3
27.9.4
8077H–AVR–12/09
CTRLA – Control Register A
CTRLB – Control Register B
Table 27-3.
• Bits 2:0 - MUXNEG[2:0]: Analog Comparator Negative Input MUX Selection
These bits select which input to be connected to the negative input of Analog Comparator n,
according to
Table 27-4.
• Bits 7:1 - 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 0 – AC0OUT: Analog Comparator Output
Setting this bit makes the output of Analog Comparator 0 available on pin 7 on the same port.
• Bits 7:6 - Res - 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
+0x05
Read/Write
Initial Value
Bit
+0x04
Read/Write
Initial Value
MUXNEG[2:0]
101
110
111
000
001
010
011
100
101
110
111
Table 27-4 on page
R/W
R
7
0
7
0
-
-
Analog Comparator n Positive Input MUX Selection (Continued)
Analog Comparator n Negative Input MUX Selection
Group Configuration
R/W
R
6
0
6
0
-
-
BANDGAP
SCALER
PIN5
PIN6
PIN0
PIN1
PIN3
PIN5
PIN7
DAC
DAC
R/W
333.
R
5
0
5
0
-
R/W
R
4
0
4
0
-
R/W
R
3
0
3
0
SCALEFAC[5:0]
-
Negative Input MUX Selection
Internal Bandgap Voltage
VCC Voltage Scaler
R/W
R
2
0
2
0
-
DAC Output
DAC Output
Pin 5
Pin 6
Pin 0
Pin 1
Pin 3
Pin 5
Pin 7
R/W
R
1
0
1
0
-
XMEGA A
AC0OUT
R/W
R/W
0
0
0
0
CTRLA
CTRLB
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