ATxmega32A4 Atmel Corporation, ATxmega32A4 Datasheet - Page 305

• Manufacturer Part Number: ATxmega32A4
• Manufacturer: Atmel Corporation

Specifications of ATxmega32A4

• Flash (kbytes): 32 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): 4
• 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

8077H–AVR–12/09
Table 25-5.
• Bits 2:0 - EVACT[2:0]: ADC Event Mode
These bits define how many of the selected event channel that are in use, and also some spe-
cial event modes as defined in
sweep triggered by a single event, or an event re-synchronized conversion to achieve a very
accurate timing for the conversion.
Table 25-6.
EVACT[2:0]
EVSEL[2:0]
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
ADC Event Line Select
ADC Event Mode Select
Group Configuration
SYNCSWEEP
CH0123
SWEEP
CH012
NONE
CH01
CH0
Group Configuration
Table 25-5 on page
0123
1234
2345
3456
4567
567
67
7
Event input operation mode
No event inputs
Event channel with the lowest number, defined by EVSEL
triggers conversion on channel 0
Event channel with the two lowest numbers, defined by
EVSEL trigger conversion on channel 0 and 1 respectively
Event channel with the three lowest numbers, defined by
EVSEL trigger conversion on channel 0, 1 and 2 respectively
Event channel defined by EVSEL trigger conversion on
channel 0, 1, 2 and 3 respectively
One sweep of all active ADC channels defined by SWEEP on
incoming event channel with the lowest number, defined by
EVSEL
One sweep of all active ADC channels defined by SWEEP on
incoming event channel with the lowest number, defined by
EVSEL. In addition, the conversion will be synchronized on
event to ensure a very accurate timing for the conversion.
Reserved
Selected event lines
Event channel 0, 1, 2, 3 as selected inputs
Event channel 1, 2, 3, 4 as selected inputs
Event channel 2, 3, 4, 5 as selected inputs
Event channel 3, 4, 5, 6 as selected inputs
Event channel 4, 5, 6, 7 as selected inputs
Event channel 5, 6, 7 as selected inputs (Max 3
event inputs in use)
Event channel 6, 7 as selected inputs (Max 2 event
inputs in use)
Event channel 7 as selected input (Max 1 event
input in use)
305. This is for instance a complete channel
XMEGA A
305