ATmega1284P datasheet(59/380 Pages) ATMEL

59 / 380 page

8059D–AVR–11/09

ATmega1284P

10. Interrupts

10.1

Overview

This section describes the specifics of the interrupt handling as performed in ATmega1284P.

For a general explanation of the AVR interrupt handling, refer to ”Reset and Interrupt Handling”

on page 13.

10.2

Interrupt Vectors in ATmega1284P

Table 10-1.

Reset and Interrupt Vectors

Vector

No.

Program

Address(2)

Source

Interrupt Definition

$0000(1)

RESET

External Pin, Power-on Reset, Brown-out Reset,

Watchdog Reset, and JTAG AVR Reset

$0002

INT0

External Interrupt Request 0

$0004

INT1

External Interrupt Request 1

$0006

INT2

External Interrupt Request 2

$0008

PCINT0

Pin Change Interrupt Request 0

$000A

PCINT1

Pin Change Interrupt Request 1

$000C

PCINT2

Pin Change Interrupt Request 2

$000E

PCINT3

Pin Change Interrupt Request 3

$0010

WDT

Watchdog Time-out Interrupt

$0012

TIMER2_COMPA

Timer/Counter2 Compare Match A

$0014

TIMER2_COMPB

Timer/Counter2 Compare Match B

$0016

TIMER2_OVF

Timer/Counter2 Overflow

$0018

TIMER1_CAPT

Timer/Counter1 Capture Event

$001A

TIMER1_COMPA

Timer/Counter1 Compare Match A

$001C

TIMER1_COMPB

Timer/Counter1 Compare Match B

$001E

TIMER1_OVF

Timer/Counter1 Overflow

$0020

TIMER0_COMPA

Timer/Counter0 Compare Match A

$0022

TIMER0_COMPB

Timer/Counter0 Compare match B

$0024

TIMER0_OVF

Timer/Counter0 Overflow

$0026

SPI_STC

SPI Serial Transfer Complete

$0028

USART0_RX

USART0 Rx Complete

$002A

USART0_UDRE

USART0 Data Register Empty

$002C

USART0_TX

USART0 Tx Complete

$002E

ANALOG_COMP

Analog Comparator

$0030

ADC

ADC Conversion Complete

$0032

EE_READY

EEPROM Ready

$0034

TWI

2-wire Serial Interface

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