ATmega324A interrupt vectors
The 31 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 | PCINT0 | PCINT0_vect | Pin Change Interrupt Request 0 |
| 5 | 0x000A | PCINT1 | PCINT1_vect | Pin Change Interrupt Request 1 |
| 6 | 0x000C | PCINT2 | PCINT2_vect | Pin Change Interrupt Request 2 |
| 7 | 0x000E | PCINT3 | PCINT3_vect | Pin Change Interrupt Request 3 |
| 8 | 0x0010 | WDT | WDT_vect | Watchdog Time-out Interrupt |
| 9 | 0x0012 | TIMER2_COMPA | TIMER2_COMPA_vect | Timer/Counter2 Compare Match A |
| 10 | 0x0014 | TIMER2_COMPB | TIMER2_COMPB_vect | Timer/Counter2 Compare Match B |
| 11 | 0x0016 | TIMER2_OVF | TIMER2_OVF_vect | Timer/Counter2 Overflow |
| 12 | 0x0018 | TIMER1_CAPT | TIMER1_CAPT_vect | Timer/Counter1 Capture Event |
| 13 | 0x001A | TIMER1_COMPA | TIMER1_COMPA_vect | Timer/Counter1 Compare Match A |
| 14 | 0x001C | TIMER1_COMPB | TIMER1_COMPB_vect | Timer/Counter1 Compare Match B |
| 15 | 0x001E | TIMER1_OVF | TIMER1_OVF_vect | Timer/Counter1 Overflow |
| 16 | 0x0020 | TIMER0_COMPA | TIMER0_COMPA_vect | Timer/Counter0 Compare Match A |
| 17 | 0x0022 | TIMER0_COMPB | TIMER0_COMPB_vect | Timer/Counter0 Compare Match B |
| 18 | 0x0024 | TIMER0_OVF | TIMER0_OVF_vect | Timer/Counter0 Overflow |
| 19 | 0x0026 | SPI_STC | SPI_STC_vect | SPI Serial Transfer Complete |
| 20 | 0x0028 | USART0_RX | USART0_RX_vect | USART0, Rx Complete |
| 21 | 0x002A | USART0_UDRE | USART0_UDRE_vect | USART0 Data register Empty |
| 22 | 0x002C | USART0_TX | USART0_TX_vect | USART0, Tx Complete |
| 23 | 0x002E | ANALOG_COMP | ANALOG_COMP_vect | Analog Comparator |
| 24 | 0x0030 | ADC | ADC_vect | ADC Conversion Complete |
| 25 | 0x0032 | EE_READY | EE_READY_vect | EEPROM Ready |
| 26 | 0x0034 | TWI | TWI_vect | 2-wire Serial Interface |
| 27 | 0x0036 | SPM_READY | SPM_READY_vect | Store Program Memory Read |
| 28 | 0x0038 | USART1_RX | USART1_RX_vect | USART1 RX complete |
| 29 | 0x003A | USART1_UDRE | USART1_UDRE_vect | USART1 Data Register Empty |
| 30 | 0x003C | USART1_TX | USART1_TX_vect | USART1 TX complete |