Rainbow-electronics ATmega8HVD Manuel d'utilisateur télécharger pdf (Page 51)

8052B–AVR–09/08

ATmega4HVD/8HVD

11. Interrupts

This section describes the specifics of the interrupt handling as performed in

ATmega4HVD/8HVD. For a general explanation of the AVR interrupt handling, refer to ”Reset

and Interrupt Handling” on page 11.

11.1 Interrupt Vectors in ATmega4HVD/8HVD

If the program never enables an interrupt source, the Interrupt Vectors are not used, and regu-

lar program code can be placed at the locations of the Interrupt Vectors.

The most typical and general program setup for the Reset and Interrupt Vector Addresses in

ATmega4HVD/8HVD is:

Table 1. Reset and Interrupt Vectors

Vector

No.

Program

Address Source Interrupt Definition

1 0x0000

RESET External Pin, Power-on Reset, Black-out Reset,

Watchdog Reset, and debugWIRE Reset

2 0x0001 BPINT Battery Protection Interrupt

3 0x0002 VREGMON Voltage Regulator Monitor Interrupt

4 0x0003 INT0 External Interrupt Request 0

5 0x0004 INT1 External Interrupt Request 1

6 0x0005 WDT Watchdog Time-out Interrupt

7 0x0006 TIMER1 IC Timer 1 Input Capture

8 0x0007 TIMER1 COMPA Timer 1 Compare Match A

9 0x0008 TIMER1 COMPB Timer 1 Compare Match B

10 0x0009 TIMER1 OF Timer 1 Overflow

11 0x000A TIMER0 IC Timer 0 Input Capture

12 0x000B TIMER0 COMPA Timer 0 Compare Match A

13 0x000C TIMER0 COMPB Timer 0 Compare Match B

14 0x000D TIMER0 OF Timer 0 Overflow

15 0x000E ADC COMPLETE ADC Conversion Complete

16 0x000F EE_READY EEPROM Ready

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 167 168

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