Rainbow-electronics Atmega169L Manuel d'utilisateur télécharger pdf (Page 45)

ATmega169V/L

2514A–AVR–08/02

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

ATmega169. For a general explanation of the AVR interrupt handling, refer to “Reset

and Interrupt Handling” on page 12.

Interrupt Vectors in

ATmega169

Notes: 1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader

address at reset, see “Boot Loader Support – Read-While-Write Self-Programming”

on page 251.

2. When the IVSEL bit in MCUCR is set, Interrupt Vectors will be moved to the start of

the Boot Flash Section. The address of each Interrupt Vector will then be the address

in this table added to the start address of the Boot Flash Section.

Table 22. Reset and Interrupt Vectors

Vector

No.

Program

Address

(2)

Source Interrupt Definition

10x0000

(1)

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

Watchdog Reset, and JTAG AVR Reset

2 0x0002 INT0 External Interrupt Request 0

3 0x0004 PCINT0 Pin Change Interrupt Request 0

4 0x0006 PCINT1 Pin Change Interrupt Request 1

5 0x0008 TIMER2 COMP Timer/Counter2 Compare Match

6 0x000A TIMER2 OVF Timer/Counter2 Overflow

7 0x000C TIMER1 CAPT Timer/Counter1 Capture Event

8 0x000E TIMER1 COMPA Timer/Counter1 Compare Match A

9 0x0010 TIMER1 COMPB Timer/Counter1 Compare Match B

10 0x0012 TIMER1 OVF Timer/Counter1 Overflow

11 0x0014 TIMER0 COMP Timer/Counter0 Compare Match

12 0x0016 TIMER0 OVF Timer/Counter0 Overflow

13 0x0018 SPI, STC SPI Serial Transfer Complete

14 0x001A USART0, RX USART0, Rx Complete

15 0x001C USART0, UDRE USART0 Data Register Empty

16 0x001E USART0, TX USART0, Tx Complete

17 0x0020 USI START USI Start Condition

18 0x0022 USI OVERFLOW USI Overflow

19 0x0024 ANALOG COMP Analog Comparator

20 0x0026 ADC ADC Conversion Complete

21 0x0028 EE READY EEPROM Ready

22 0x002A SPM READY Store Program Memory Ready

23 0x002C LCD LCD Start of Frame

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 316 317

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Rainbow-electronics Atmega169L Manuel d'utilisateur Page 45

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