ATmega32A interrupt vectors
The 21 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 and Watchdog Reset |
| 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 | TIMER2_COMP | TIMER2_COMP_vect | Timer/Counter2 Compare Match |
| 5 | 0x000A | TIMER2_OVF | TIMER2_OVF_vect | Timer/Counter2 Overflow |
| 6 | 0x000C | TIMER1_CAPT | TIMER1_CAPT_vect | Timer/Counter1 Capture Event |
| 7 | 0x000E | TIMER1_COMPA | TIMER1_COMPA_vect | Timer/Counter1 Compare Match A |
| 8 | 0x0010 | TIMER1_COMPB | TIMER1_COMPB_vect | Timer/Counter1 Compare Match B |
| 9 | 0x0012 | TIMER1_OVF | TIMER1_OVF_vect | Timer/Counter1 Overflow |
| 10 | 0x0014 | TIMER0_COMP | TIMER0_COMP_vect | Timer/Counter0 Compare Match |
| 11 | 0x0016 | TIMER0_OVF | TIMER0_OVF_vect | Timer/Counter0 Overflow |
| 12 | 0x0018 | SPI_STC | SPI_STC_vect | Serial Transfer Complete |
| 13 | 0x001A | USART_RXC | USART_RXC_vect | USART, Rx Complete |
| 14 | 0x001C | USART_UDRE | USART_UDRE_vect | USART Data Register Empty |
| 15 | 0x001E | USART_TXC | USART_TXC_vect | USART, Tx Complete |
| 16 | 0x0020 | ADC | ADC_vect | ADC Conversion Complete |
| 17 | 0x0022 | EE_RDY | EE_RDY_vect | EEPROM Ready |
| 18 | 0x0024 | ANA_COMP | ANA_COMP_vect | Analog Comparator |
| 19 | 0x0026 | TWI | TWI_vect | 2-wire Serial Interface |
| 20 | 0x0028 | SPM_RDY | SPM_RDY_vect | Store Program Memory Ready |