Atmel ATmega328P Xplained Mini MEGA328P-XMINI MEGA328P-XMINI Data Sheet

59

ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]

Atmel-8271H-AVR- ATmega-Datasheet_08/2014

The most typical and general program setup for the Reset and Interrupt Vector Addresses in ATmega 48A/48PA 
is:

Address

Labels

Code

Comments

0x000

rjmp

RESET

; Reset Handler

0x001

rjmp

EXT_INT0

; IRQ0 Handler

0x002

rjmp

EXT_INT1

; IRQ1 Handler

0x003

rjmp

PCINT0

; PCINT0 Handler

0x004

rjmp

PCINT1

; PCINT1 Handler

0x005

rjmp

PCINT2

; PCINT2 Handler

0x006

rjmp

WDT

; Watchdog Timer Handler

0x007

rjmp

TIM2_COMPA

; Timer2 Compare A Handler

0x008

rjmp

TIM2_COMPB

; Timer2 Compare B Handler

0x009

rjmp

TIM2_OVF

; Timer2 Overflow Handler

0x00A

rjmp

TIM1_CAPT

; Timer1 Capture Handler

0x00B

rjmp

TIM1_COMPA

; Timer1 Compare A Handler

0x00C

rjmp

TIM1_COMPB

; Timer1 Compare B Handler

0x00D

rjmp

TIM1_OVF

; Timer1 Overflow Handler

0x00E

rjmp

TIM0_COMPA

; Timer0 Compare A Handler

0x00F

rjmp

TIM0_COMPB

; Timer0 Compare B Handler

0x010

rjmp

TIM0_OVF

; Timer0 Overflow Handler

0x011

rjmp

SPI_STC

; SPI Transfer Complete Handler

0x012

rjmp

USART_RXC

; USART, RX Complete Handler

0x013

rjmp

USART_UDRE

; USART, UDR Empty Handler

0x014

rjmp

USART_TXC

; USART, TX Complete Handler

0x015

rjmp

ADC

; ADC Conversion Complete Handler

0x016

rjmp

EE_RDY

; EEPROM Ready Handler

0x017

rjmp

ANA_COMP

; Analog Comparator Handler

0x018

rjmp

TWI

; 2-wire Serial Interface Handler

0x019

rjmp

; SPM_RDYStore Program Memory Ready 

Handler

;

0x01A RESET:

ldi

r16, high(RAMEND); Main program start

0x01B

out 

SPH,r16

; Set Stack Pointer to top of RAM

0x01C

ldi r16, 

low(RAMEND)

0x01D

out SPL,r16

0x01E

sei

; Enable interrupts

0x01F

<instr>  xxx

  ...

 ...

...

 ...

24

0x017

ANALOG COMP

Analog Comparator

25

0x018

TWI

2-wire Serial Interface

26

0x019

SPM READY

Store Program Memory Ready

Reset and Interrupt Vectors in ATmega48A and ATmega48PA (Continued)