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 Program
No.
Address(2)
Source
Interrupt Definition
1
0x0000(1)
RESET
External Pin, Power-on Reset, Brown-out Reset,
Watchdog Reset, and JTAG AVR Reset
2
0x0002
0x0004
0x0006
0x0008
0x000A
0x000C
0x000E
0x0010
0x0012
0x0014
0x0016
0x0018
0x001A
0x001C
0x001E
0x0020
0x0022
0x0024
0x0026
0x0028
0x002A
0x002C
0x002E
0x0030(3)
0x0032(3)
INT0
External Interrupt Request 0
External Interrupt Request 1
External Interrupt Request 2
External Interrupt Request 3
External Interrupt Request 4
External Interrupt Request 5
External Interrupt Request 6
External Interrupt Request 7
Timer/Counter2 Compare Match
Timer/Counter2 Overflow
3
INT1
4
INT2
5
INT3
6
INT4
7
INT5
8
INT6
9
INT7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
TIMER2 COMP
TIMER2 OVF
TIMER1 CAPT
TIMER1 COMPA
TIMER1 COMPB
TIMER1 OVF
TIMER0 COMP
TIMER0 OVF
SPI, STC
Timer/Counter1 Capture Event
Timer/Counter1 Compare Match A
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
SPI Serial Transfer Complete
USART0, Rx Complete
USART0, RX
USART0, UDRE
USART0, TX
ADC
USART0 Data Register Empty
USART0, Tx Complete
ADC Conversion Complete
EEPROM Ready
EE READY
ANALOG COMP
TIMER1 COMPC
TIMER3 CAPT
Analog Comparator
Timer/Countre1 Compare Match C
Timer/Counter3 Capture Event
60
8160C–AVR–07/09
ATMEL [ ATMEL ]
