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| Defines | |
| Global manipulation of the interrupt flag | |
| The global interrupt flag is maintained in the I bit of the status register (SREG).  | |
| #define | sei() | 
| #define | cli() | 
| Macros for writing interrupt handler functions | |
| #define | ISR(vector, attributes) | 
| #define | SIGNAL(vector) | 
| #define | EMPTY_INTERRUPT(vector) | 
| #define | ISR_ALIAS(vector, target_vector) | 
| #define | reti() | 
| #define | BADISR_vect | 
| ISR attributes | |
| #define | ISR_BLOCK | 
| #define | ISR_NOBLOCK | 
| #define | ISR_NAKED | 
| #define | ISR_ALIASOF(target_vector) |