ATxmega128B3 Atmel Corporation, ATxmega128B3 Datasheet - Page 353

• Manufacturer Part Number: ATxmega128B3
• Manufacturer: Atmel Corporation

Specifications of ATxmega128B3

• 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: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• 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: 2
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

26.8
26.8.1
8291A–AVR–10/11
Register Description
ACnCTRL – Analog Comparator n Control register
• Bit 7:6 – INTMODE[1:0]: Interrupt Modes
These bits configure the interrupt mode for analog comparator n according to
Table 26-1.
• Bit 5:4 – INTLVL[1:0]: Interrupt Level
These bits enable the analog comparator n interrupt and select the interrupt level, as described
in
rupt will trigger according to the INTMODE setting.
• Bit 3 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write
this bit to zero when this register is written.
• Bit 2:1 – HYSMODE[1:0]: Hysteresis Mode Select
These bits select the hysteresis mode according to
levels, refer to the device datasheet.
Table 26-2.
• Bit 0 – ENABLE: Enable
Setting this bit enables analog comparator n.
Bit
+0x00 / +0x01
Read/Write
Initial Value
”Interrupts and Programmable Multilevel Interrupt Controller” on page
HYSMODE[1:0]
INTMODE[1:0]
00
01
10
11
00
01
10
11
R/W
Hysteresis settings.
7
0
Interrupt settings.
INTMODE[1:0]
BOTHEDGES
–
FALLING
RISING
NO
SMALL
LARGE
–
Group Configuration
Group Configuration
R/W
6
0
R/W
5
0
INTLVL[1:0]
R/W
4
0
Comparator interrupt or event on output toggle
Comparator interrupt or event on falling output edge
Comparator interrupt or event on rising output edge
Description
Large hysteresis
Description
Reserved
No hysteresis
Small hysteresis
Reserved
Table
3
–
R
0
Atmel AVR XMEGA B
26-2. For details on actual hysteresis
R/W
2
0
HYSMODE[2:0]
R/W
1
0
101. The enabled inter-
Table
ENABLE
R/W
0
0
26-1.
ACnCTRL
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