ATXMEGA256A3_1012 Datasheet, PDF (49/134 Pages) ATMEL Corporation – 8/16-bit XMEGA A3 Microcontroller

XMEGA A3
30. Pinout and Pin Functions
The pinout of XMEGA A3 is shown in ”” on page 2. In addition to general I/O functionality, each
pin may have several function. This will depend on which peripheral is enabled and connected to
the actual pin. Only one of the alternate pin functions can be used at time.
30.1 Alternate Pin Function Description
The tables below show the notation for all pin functions available and describe its function.
30.1.1 Operation/Power Supply
30.1.2
VCC
AVCC
GND
Port Interrupt functions
Digital supply voltage
Analog supply voltage
Ground
30.1.3
SYNC
ASYNC
Analog functions
Port pin with full synchronous and limited asynchronous interrupt function
Port pin with full synchronous and full asynchronous interrupt function
ACn
AC0OUT
ADCn
DACn
AREF
Analog Comparator input pin n
Analog Comparator 0 Output
Analog to Digital Converter input pin n
Digital to Analog Converter output pin n
Analog Reference input pin
30.1.4 Timer/Counter and AWEX functions
OCnx
OCnx
OCnxLS
OCnxHS
Output Compare Channel x for Timer/Counter n
Inverted Output Compare Channel x for Timer/Counter n
Output Compare Channel x Low Side for Timer/Counter n
Output Compare Channel x High Side for Timer/Counter n
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