ATmega64A datasheet(60/392 Pages) ATMEL

60 / 392 page

8160C–AVR–07/09

ATmega64A

11. Interrupts

11.1

Overview

This section describes the specifics of the interrupt handling as performed in ATmega64A. For a

general explanation of the AVR interrupt handling, refer to “Reset and Interrupt Handling” on

page 14.

11.2

Interrupt Vectors in ATmega64A

Table 11-1.

Reset and Interrupt Vectors

Vector

No.

Program

Address(2)

Source

Interrupt Definition

0x0000(1)

RESET

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

Watchdog Reset, and JTAG AVR Reset

0x0002

INT0

External Interrupt Request 0

0x0004

INT1

External Interrupt Request 1

0x0006

INT2

External Interrupt Request 2

0x0008

INT3

External Interrupt Request 3

0x000A

INT4

External Interrupt Request 4

0x000C

INT5

External Interrupt Request 5

0x000E

INT6

External Interrupt Request 6

0x0010

INT7

External Interrupt Request 7

0x0012

TIMER2 COMP

Timer/Counter2 Compare Match

0x0014

TIMER2 OVF

Timer/Counter2 Overflow

0x0016

TIMER1 CAPT

Timer/Counter1 Capture Event

0x0018

TIMER1 COMPA

Timer/Counter1 Compare Match A

0x001A

TIMER1 COMPB

Timer/Counter1 Compare Match B

0x001C

TIMER1 OVF

Timer/Counter1 Overflow

0x001E

TIMER0 COMP

Timer/Counter0 Compare Match

0x0020

TIMER0 OVF

Timer/Counter0 Overflow

0x0022

SPI, STC

SPI Serial Transfer Complete

0x0024

USART0, RX

USART0, Rx Complete

0x0026

USART0, UDRE

USART0 Data Register Empty

0x0028

USART0, TX

USART0, Tx Complete

0x002A

ADC

ADC Conversion Complete

0x002C

EE READY

EEPROM Ready

0x002E

ANALOG COMP

Analog Comparator

0x0030(3)

TIMER1 COMPC

Timer/Countre1 Compare Match C

0x0032(3)

TIMER3 CAPT

Timer/Counter3 Capture Event

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