ATmega640 interrupt vectors

The 57 vectors at the start of flash, two words each (a JMP). A lower number has the higher priority; vector 0 is reset. In avr-gcc a handler is ISR(NAME_vect).

Vector	Program address	Name	Handler	Source
0	`0x0000`	RESET	reset: `main()` after start-up	External Pin,Power-on Reset,Brown-out Reset,Watchdog Reset,and JTAG AVR Reset. See Datasheet.
1	`0x0002`	INT0	`INT0_vect`	External Interrupt Request 0
2	`0x0004`	INT1	`INT1_vect`	External Interrupt Request 1
3	`0x0006`	INT2	`INT2_vect`	External Interrupt Request 2
4	`0x0008`	INT3	`INT3_vect`	External Interrupt Request 3
5	`0x000A`	INT4	`INT4_vect`	External Interrupt Request 4
6	`0x000C`	INT5	`INT5_vect`	External Interrupt Request 5
7	`0x000E`	INT6	`INT6_vect`	External Interrupt Request 6
8	`0x0010`	INT7	`INT7_vect`	External Interrupt Request 7
9	`0x0012`	PCINT0	`PCINT0_vect`	Pin Change Interrupt Request 0
10	`0x0014`	PCINT1	`PCINT1_vect`	Pin Change Interrupt Request 1
11	`0x0016`	PCINT2	`PCINT2_vect`	Pin Change Interrupt Request 2
12	`0x0018`	WDT	`WDT_vect`	Watchdog Time-out Interrupt
13	`0x001A`	TIMER2_COMPA	`TIMER2_COMPA_vect`	Timer/Counter2 Compare Match A
14	`0x001C`	TIMER2_COMPB	`TIMER2_COMPB_vect`	Timer/Counter2 Compare Match B
15	`0x001E`	TIMER2_OVF	`TIMER2_OVF_vect`	Timer/Counter2 Overflow
16	`0x0020`	TIMER1_CAPT	`TIMER1_CAPT_vect`	Timer/Counter1 Capture Event
17	`0x0022`	TIMER1_COMPA	`TIMER1_COMPA_vect`	Timer/Counter1 Compare Match A
18	`0x0024`	TIMER1_COMPB	`TIMER1_COMPB_vect`	Timer/Counter1 Compare Match B
19	`0x0026`	TIMER1_COMPC	`TIMER1_COMPC_vect`	Timer/Counter1 Compare Match C
20	`0x0028`	TIMER1_OVF	`TIMER1_OVF_vect`	Timer/Counter1 Overflow
21	`0x002A`	TIMER0_COMPA	`TIMER0_COMPA_vect`	Timer/Counter0 Compare Match A
22	`0x002C`	TIMER0_COMPB	`TIMER0_COMPB_vect`	Timer/Counter0 Compare Match B
23	`0x002E`	TIMER0_OVF	`TIMER0_OVF_vect`	Timer/Counter0 Overflow
24	`0x0030`	SPI_STC	`SPI_STC_vect`	SPI Serial Transfer Complete
25	`0x0032`	USART0_RX	`USART0_RX_vect`	USART0, Rx Complete
26	`0x0034`	USART0_UDRE	`USART0_UDRE_vect`	USART0 Data register Empty
27	`0x0036`	USART0_TX	`USART0_TX_vect`	USART0, Tx Complete
28	`0x0038`	ANALOG_COMP	`ANALOG_COMP_vect`	Analog Comparator
29	`0x003A`	ADC	`ADC_vect`	ADC Conversion Complete
30	`0x003C`	EE_READY	`EE_READY_vect`	EEPROM Ready
31	`0x003E`	TIMER3_CAPT	`TIMER3_CAPT_vect`	Timer/Counter3 Capture Event
32	`0x0040`	TIMER3_COMPA	`TIMER3_COMPA_vect`	Timer/Counter3 Compare Match A
33	`0x0042`	TIMER3_COMPB	`TIMER3_COMPB_vect`	Timer/Counter3 Compare Match B
34	`0x0044`	TIMER3_COMPC	`TIMER3_COMPC_vect`	Timer/Counter3 Compare Match C
35	`0x0046`	TIMER3_OVF	`TIMER3_OVF_vect`	Timer/Counter3 Overflow
36	`0x0048`	USART1_RX	`USART1_RX_vect`	USART1, Rx Complete
37	`0x004A`	USART1_UDRE	`USART1_UDRE_vect`	USART1 Data register Empty
38	`0x004C`	USART1_TX	`USART1_TX_vect`	USART1, Tx Complete
39	`0x004E`	TWI	`TWI_vect`	2-wire Serial Interface
40	`0x0050`	SPM_READY	`SPM_READY_vect`	Store Program Memory Read
41	`0x0052`	TIMER4_CAPT	`TIMER4_CAPT_vect`	Timer/Counter4 Capture Event
42	`0x0054`	TIMER4_COMPA	`TIMER4_COMPA_vect`	Timer/Counter4 Compare Match A
43	`0x0056`	TIMER4_COMPB	`TIMER4_COMPB_vect`	Timer/Counter4 Compare Match B
44	`0x0058`	TIMER4_COMPC	`TIMER4_COMPC_vect`	Timer/Counter4 Compare Match C
45	`0x005A`	TIMER4_OVF	`TIMER4_OVF_vect`	Timer/Counter4 Overflow
46	`0x005C`	TIMER5_CAPT	`TIMER5_CAPT_vect`	Timer/Counter5 Capture Event
47	`0x005E`	TIMER5_COMPA	`TIMER5_COMPA_vect`	Timer/Counter5 Compare Match A
48	`0x0060`	TIMER5_COMPB	`TIMER5_COMPB_vect`	Timer/Counter5 Compare Match B
49	`0x0062`	TIMER5_COMPC	`TIMER5_COMPC_vect`	Timer/Counter5 Compare Match C
50	`0x0064`	TIMER5_OVF	`TIMER5_OVF_vect`	Timer/Counter5 Overflow
51	`0x0066`	USART2_RX	`USART2_RX_vect`	USART2, Rx Complete
52	`0x0068`	USART2_UDRE	`USART2_UDRE_vect`	USART2 Data register Empty
53	`0x006A`	USART2_TX	`USART2_TX_vect`	USART2, Tx Complete
54	`0x006C`	USART3_RX	`USART3_RX_vect`	USART3, Rx Complete
55	`0x006E`	USART3_UDRE	`USART3_UDRE_vect`	USART3 Data register Empty
56	`0x0070`	USART3_TX	`USART3_TX_vect`	USART3, Tx Complete