Datasheet

59
2467X–AVR–06/11
ATmega128
Interrupts This section describes the specifics of the interrupt handling as performed in Atmel
®
AVR
®
ATmega128. For a general explanation of the AVR interrupt handling, refer to “Reset and Inter-
rupt Handling” on page 14.
Interrupt Vectors
in ATmega128
Table 23. Reset and Interrupt Vectors
Vector
No.
Program
Address
(2)
Source Interrupt Definition
1 $0000
(1)
RESET
External Pin, Power-on Reset, Brown-out Reset,
Watchdog Reset, and JTAG AVR Reset
2 $0002 INT0 External Interrupt Request 0
3 $0004 INT1 External Interrupt Request 1
4 $0006 INT2 External Interrupt Request 2
5 $0008 INT3 External Interrupt Request 3
6 $000A INT4 External Interrupt Request 4
7 $000C INT5 External Interrupt Request 5
8 $000E INT6 External Interrupt Request 6
9 $0010 INT7 External Interrupt Request 7
10 $0012 TIMER2 COMP Timer/Counter2 Compare Match
11 $0014 TIMER2 OVF Timer/Counter2 Overflow
12 $0016 TIMER1 CAPT Timer/Counter1 Capture Event
13 $0018 TIMER1 COMPA Timer/Counter1 Compare Match A
14 $001A TIMER1 COMPB Timer/Counter1 Compare Match B
15 $001C TIMER1 OVF Timer/Counter1 Overflow
16 $001E TIMER0 COMP Timer/Counter0 Compare Match
17 $0020 TIMER0 OVF Timer/Counter0 Overflow
18 $0022 SPI, STC SPI Serial Transfer Complete
19 $0024 USART0, RX USART0, Rx Complete
20 $0026 USART0, UDRE USART0 Data Register Empty
21 $0028 USART0, TX USART0, Tx Complete
22 $002A ADC ADC Conversion Complete
23 $002C EE READY EEPROM Ready
24 $002E ANALOG COMP Analog Comparator
25 $0030
(3)
TIMER1 COMPC Timer/Countre1 Compare Match C
26 $0032
(3)
TIMER3 CAPT Timer/Counter3 Capture Event
27 $0034
(3)
TIMER3 COMPA Timer/Counter3 Compare Match A
28 $0036
(3)
TIMER3 COMPB Timer/Counter3 Compare Match B
29 $0038
(3)
TIMER3 COMPC Timer/Counter3 Compare Match C
30 $003A
(3)
TIMER3 OVF Timer/Counter3 Overflow