Interrupts
Interrupt Vectors in
ATmega64
2490G–AVR–03/04
ATmega64(L)
This section describes the specifics of the interrupt handling as performed in
ATmega64. For a general explanation of the AVR interrupt handling, refer to “Reset and
Interrupt Handling” on page 13.
Table 23. Reset and Interrupt Vectors
Vector
No.
1
Program
Address(2)
0x0000(1)
Source
RESET
Interrupt Definition
External Pin, Power-on Reset, Brown-out Reset,
Watchdog Reset, and JTAG AVR Reset
2
0x0002 INT0
External Interrupt Request 0
3
0x0004 INT1
External Interrupt Request 1
4
0x0006 INT2
External Interrupt Request 2
5
0x0008 INT3
External Interrupt Request 3
6
0x000A INT4
External Interrupt Request 4
7
0x000C INT5
External Interrupt Request 5
8
0x000E INT6
External Interrupt Request 6
9
0x0010 INT7
External Interrupt Request 7
10
0x0012 TIMER2 COMP Timer/Counter2 Compare Match
11
0x0014 TIMER2 OVF
Timer/Counter2 Overflow
12
0x0016 TIMER1 CAPT Timer/Counter1 Capture Event
13
0x0018 TIMER1 COMPA Timer/Counter1 Compare Match A
14
0x001A TIMER1 COMPB Timer/Counter1 Compare Match B
15
0x001C TIMER1 OVF
Timer/Counter1 Overflow
16
0x001E TIMER0 COMP Timer/Counter0 Compare Match
17
0x0020 TIMER0 OVF
Timer/Counter0 Overflow
18
0x0022 SPI, STC
SPI Serial Transfer Complete
19
0x0024 USART0, RX
USART0, Rx Complete
20
0x0026 USART0, UDRE USART0 Data Register Empty
21
0x0028 USART0, TX
USART0, Tx Complete
22
0x002A ADC
ADC Conversion Complete
23
0x002C EE READY
EEPROM Ready
24
0x002E ANALOG COMP Analog Comparator
25
0x0030(3) TIMER1 COMPC Timer/Countre1 Compare Match C
26
0x0032(3) TIMER3 CAPT Timer/Counter3 Capture Event
27
0x0034(3) TIMER3 COMPA Timer/Counter3 Compare Match A
28
0x0036(3) TIMER3 COMPB Timer/Counter3 Compare Match B
29
0x0038(3) TIMER3 COMPC Timer/Counter3 Compare Match C
30
0x003A(3) TIMER3 OVF
Timer/Counter3 Overflow
31
0x003C(3) USART1, RX
USART1, Rx Complete
59