51 MCU interrupt entry address representation in C language-EEWORLD

Collect

Function type Function name (any) Interrupt ID (different numbers represent different interrupt entries)

For example:
void INT () interrupt 0 //External interrupt 0
{}
void INT () interrupt 1 //Timer/Counter 0
{}
void INT () interrupt 2 //External interrupt 1
{}
void INT () interrupt 3 //Timer/Counter 1
{}
void INT () interrupt 4 //Serial port
{}

interrupt X X indicates the interrupt number, 0 indicates external interrupt 0, 1 indicates timer 0 overflow interrupt, 2 indicates external interrupt 1 (/INT1), 3 indicates timer 1 overflow interrupt, 4 indicates serial port interrupt, 5 indicates timer 2 overflow interrupt. Some enhanced 51s may have other interrupt usages: void timer0_ISR(void) interrupt 1 { }

Reference address：51 MCU interrupt entry address representation in C language

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