ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 312
ATxmega32A4U
Manufacturer Part Number
ATxmega32A4U
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32A4U
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 Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega32A4U-AU
Manufacturer:
ON
Quantity:
1 140
Part Number:
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Manufacturer:
ATMEL/爱特梅尔
Quantity:
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Part Number:
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Manufacturer:
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Quantity:
20 000
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24. IRCOM - IR Communication Module
24.1
24.2
8331A–AVR–07/11
Features
Overview
•
•
•
•
•
XMEGA devices contain an infrared communication module (IRCOM) that is IrDA compatible for
baud rates up to 115.2kbps. It can be connected to any USART to enable infrared pulse encod-
ing/decoding for that USART.
Figure 24-1. IRCOM connection to USARTs and associated port pins.
The IRCOM is automatically enabled when a USART is set in IRCOM mode. The signals
between the USART and the RX/TX pins are then routed through the module as shown in
24-1 on page
infrared pulse. It is also possible to select an event channel from the event system as input for
the IRCOM receiver. This will disable the RX input from the USART pin.
Pulse modulation/demodulation for infrared communication
IrDA compatible for baud rates up to 115.2kbps
Selectable pulse modulation scheme
Built-in filtering
Can be connected to and used by any USART
– 3/16 of the baud rate period
– Fixed pulse period, 8-bit programmable
– Pulse modulation disabled
IRCOM
Decoding
Encoding
Pulse
Pulse
312. The data on the TX/RX pins are the inverted value of the transmitted/received
encoded RXD
decoded TXD
decoded RXD
encoded TXD
Event System
USARTxn
Atmel AVR XMEGA AU
....
DIF
USARTD0
USARTC0
events
RXDnx
TXDnx
RXD...
TXD...
RXDD0
TXDD0
RXDC0
TXDC0
Figure
312
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