Atmel AVR XMEGA 8/16-bit High Performance Low Power Flash Microcontrollers Manuale Utente Scaricare il pdf (Pagina 8)

8362E–AVR–01/12

XMEGA A3BU

33. Pinout and Pin Functions

The device pinout is shown in ”Pinout/Block Diagram” on page 3. In addition to general purpose

I/O functionality, each pin can have several alternate functions. This will depend on which

peripheral is enabled and connected to the actual pin. Only one of the pin functions can be used

at time.

33.1 Alternate Pin Function Description

The tables below show the notation for all pin functions available and describe its function.

33.1.1 Operation/Power Supply

33.1.2 Port Interrupt functions

33.1.3 Analog functions

33.1.4 Timer/Counter and AWEX functions

Digital supply voltage

Analog supply voltage

VBAT Battery Backup Module supply voltage

GND Ground

SYNC Port pin with full synchronous and limited asynchronous interrupt function

ASYNC Port pin with full synchronous and full asynchronous interrupt function

ACn Analog Comparator input pin n

ACnOUT Analog Comparator n Output

ADCn Analog to Digital Converter input pin n

DACn Digital to Analog Converter output pin n

REF

Analog Reference input pin

OCnxLS Output Compare Channel x Low Side for Timer/Counter n

OCnxHS Output Compare Channel x High Side for Timer/Counter n

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 17 18

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Atmel AVR XMEGA 8/16-bit High Performance Low Power Flash Microcontrollers Manuale Utente Pagina 8