ATmega328P datasheet(62/448 Pages) ATMEL

62 / 448 page

8161D–AVR–10/09

ATmega48PA/88PA/168PA/328P

0xC1B

out

SPH,r16

; Set Stack Pointer to top of RAM

0xC1C

ldi

r16,low(RAMEND)

0xC1D

out

SPL,r16

0xC1E

sei

; Enable interrupts

0xC1F

<instr>

xxx

11.3

Interrupt Vectors in ATmega168PA

Notes:

1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader address at reset, see ”Boot Loader Sup-

port – Read-While-Write Self-Programming, ATmega88PA, ATmega168PA and ATmega328P” on page 277.

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 11-4.

Reset and Interrupt Vectors in ATmega168PA

VectorNo.

Program

Address(2)

Source

Interrupt Definition

0x0000(1)

RESET

External Pin, Power-on Reset, Brown-out Reset and Watchdog System Reset

0x0002

INT0

External Interrupt Request 0

0x0004

INT1

External Interrupt Request 1

0x0006

PCINT0

Pin Change Interrupt Request 0

0x0008

PCINT1

Pin Change Interrupt Request 1

0x000A

PCINT2

Pin Change Interrupt Request 2

0x000C

WDT

Watchdog Time-out Interrupt

0x000E

TIMER2 COMPA

Timer/Counter2 Compare Match A

0x0010

TIMER2 COMPB

Timer/Counter2 Compare Match B

0x0012

TIMER2 OVF

Timer/Counter2 Overflow

0x0014

TIMER1 CAPT

Timer/Counter1 Capture Event

0x0016

TIMER1 COMPA

Timer/Counter1 Compare Match A

0x0018

TIMER1 COMPB

Timer/Coutner1 Compare Match B

0x001A

TIMER1 OVF

Timer/Counter1 Overflow

0x001C

TIMER0 COMPA

Timer/Counter0 Compare Match A

0x001E

TIMER0 COMPB

Timer/Counter0 Compare Match B

0x0020

TIMER0 OVF

Timer/Counter0 Overflow

0x0022

SPI, STC

SPI Serial Transfer Complete

0x0024

USART, RX

USART Rx Complete

0x0026

USART, UDRE

USART, Data Register Empty

0x0028

USART, TX

USART, Tx Complete

0x002A

ADC

ADC Conversion Complete

0x002C

EE READY

EEPROM Ready

0x002E

ANALOG COMP

Analog Comparator

0x0030

TWI

2-wire Serial Interface

0x0032

SPM READY

Store Program Memory Ready

ATmega328P Datasheet(PDF) 62 Page - ATMEL Corporation

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