ATxmega16A4 Atmel Corporation, ATxmega16A4 Datasheet - Page 332

• Manufacturer Part Number: ATxmega16A4
• Manufacturer: Atmel Corporation

Specifications of ATxmega16A4

• 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 Speed: No
• Usb Interface: No
• 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

27.9.2
8077H–AVR–12/09
ACnMUXCTRL – Analog Comparator Control Register
• Bits 5:4 - INTLVL[1:0]: Analog Comparator Interrupt Level
These bits enable the Analog Comparator n Interrupt and select the interrupt level as described
in
enabled interrupt will trigger according to the INTMODE setting.
• Bit 3 - HSMODE: Analog Comparator High-Speed Mode Select
Setting this bit selects High-speed mode and clearing this bit to select Low-power mode.
• Bits 2:1 - HYSMODE[1:0]: Analog Comparator Hysteresis Mode Select
These bits select hysteresis according to
to device data sheet.
Table 27-2.
• Bit 0 - ENABLE: Analog Comparator Enable
Settings this bit enables the Analog Comparator n.
• Bits 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.
• Bits 5:3 - MUXPOS[2:0]: Analog Comparator Positive Input MUX Selection
These bits select which input to be connected to the positive input of Analog Comparator n,
according to
Table 27-3.
Bit
+0x02 / +0x03
Read/Write
Initial Value
Section 12. ”Interrupts and Programmable Multi-level Interrupt Controller” on page
HYSMODE[1:0]
MUXPOS[2:0]
000
001
010
011
100
00
01
10
11
Table
Analog Comparator n Hysteresis Settings
Analog Comparator n Positive Input MUX Selection
R
7
0
-
27-3.
Group Configuration
Group Configuration
6
R
0
-
LARGE
SMALL
PIN0
PIN1
PIN2
PIN3
PIN4
NO
-
R/W
5
0
MUXPOS[2:0]
Table
R/W
4
0
Description
Large hysteresis
No hysteresis
Small hysteresis
Reserved
27-2. For details on actual hysteresis levels refer
R/W
3
0
R/W
2
0
Description
MUXNEG[2:0]
Pin 0
Pin 1
Pin 2
Pin 3
Pin 4
R/W
1
0
XMEGA A
R/W
0
0
ACnMUXCTRL
123. The
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