ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 354

• Manufacturer Part Number: ATxmega128B1
• Manufacturer: Atmel Corporation

Specifications of ATxmega128B1

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 53
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Segment Lcd: 160
• 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
• 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: 3
• Output Compare Channels: 10
• Input Capture Channels: 10
• Pwm Channels: 10
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

26.8.2
8291A–AVR–10/11
ACnMUXCTRL – Analog Comparator n Mux Control register
• 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 5:3 – MUXPOS[2:0]: Positive Input MUX Selection
These bits select which input will be connected to the positive input of analog comparator n
according to
Table 26-3.
• Bit 2:0 – MUXNEG[2:0]: Negative Input MUX Selection
These bits select which input will be connected to the negative input of analog comparator n
according to
Table 26-4.
Bit
+0x02 / +0x03
Read/Write
Initial Value
MUXPOS[2:0]
MUXNEG[2:0]
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
Table
Table 26-4 on page
Positive input MUX selection.
Negative input MUX selection.
–
R
7
0
26-3.
Group Configuration
Group Configuration
6
–
R
0
BANDGAP
SCALER
PIN0
PIN1
PIN2
PIN3
PIN4
PIN5
PIN6
PIN0
PIN1
PIN3
PIN5
PIN7
–
–
354.
R/W
5
0
MUXPOS[2:0]
R/W
4
0
R/W
3
0
Atmel AVR XMEGA B
Negative Input MUX Selection
Internal bandgap voltage
R/W
2
0
V
CC
Description
Reserved
Reserved
voltage scaler
MUXNEG[2:0]
Pin 0
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 0
Pin 1
Pin 3
Pin 5
Pin 7
R/W
1
0
R/W
0
0
ACnMUXCTRL
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