15.1 Interrupt Vectors in ATmega328PB

Table 15-1. Reset and Interrupt Vectors in ATmega328PB
Vector No	Program Address	Source	Interrupts definition
1	0x0000	RESET	External Pin, Power-on Reset, Brown-out Reset and Watchdog System Reset
2	0x0002	INT0	External Interrupt Request 0
3	0x0004	INT1	External Interrupt Request 1
4	0x0006	PCINT0	Pin Change Interrupt Request 0
5	0x0008	PCINT1	Pin Change Interrupt Request 1
6	0x000A	PCINT2	Pin Change Interrupt Request 2
7	0x000C	WDT	Watchdog Time-out Interrupt
8	0x000E	TIMER2_COMPA	Timer/Counter2 Compare Match A
9	0x0010	TIMER2_COMPB	Timer/Coutner2 Compare Match B
10	0x0012	TIMER2_OVF	Timer/Counter2 Overflow
11	0x0014	TIMER1_CAPT	Timer/Counter1 Capture Event
12	0x0016	TIMER1_COMPA	Timer/Counter1 Compare Match A
13	0x0018	TIMER1_COMPB	Timer/Coutner1 Compare Match B
14	0x001A	TIMER1_OVF	Timer/Counter1 Overflow
15	0x001C	TIMER0_COMPA	Timer/Counter0 Compare Match A
16	0x001E	TIMER0_COMPB	Timer/Coutner0 Compare Match B
17	0x0020	TIMER0_OVF	Timer/Counter0 Overflow
18	0x0022	SPI0 STC	SPI1 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	TWI	Two-wire Serial Interface (I²C
26	0x0032	SPM READY	Store Program Memory Ready
27	0x0034	USART0_START	USART0 Start frame detection
28	0x0036	PCINT3	Pin Change Interrupt Request 3
29	0x0038	USART1_RX	USART0 Rx Complete
30	0x003A	USART1_UDRE	USART0, Data Register Empty
31	0x003C	USART1_TX	USART0, Tx Complete
32	0x003E	USART1_START	USART1 Start frame detection
33	0x0040	TIMER3_CAPT	Timer/Counter3 Capture Event
34	0x0042	TIMER3_COMPA	Timer/Counter3 Compare Match A
35	0x0044	TIMER3_COMPB	Timer/Coutner3 Compare Match B
36	0x0046	TIMER3_OVF	Timer/Counter3 Overflow
37	0x0048	CFD	Clock failure detection interrrupt
38	0x004A	PTC_EOC	PTC End of Conversion
39	0x004C	PTC_WCOMP	PTC Window comparator mode
40	0x004E	SPI1_STC	SPI1 Serial Transfer Complete
41	0x0050	TWI1	TWI1 Transfer complete
42	0x0052	TIMER4_CAPT	Timer/Counter3 Capture Event
43	0x0054	TIMER4_COMPA	Timer/Counter3 Compare Match A
44	0x0056	TIMER4_COMPB	Timer/Coutner3 Compare Match B
45	0x0058	TIMER4_OVF	Timer/Counter3 Overflow