ATmega640/1280/1281/2560/2561
Table 30. Reset and Interrupt Vectors Placement(1)
BOOTRST
IVSEL
Reset Address
0x0000
Interrupt Vectors Start Address
0x0002
1
1
0
0
0
1
0
1
0x0000
Boot Reset Address + 0x0002
0x0002
Boot Reset Address
Boot Reset Address
Boot Reset Address + 0x0002
Note:
1. The Boot Reset Address is shown in Table 139 on page 330 through Table 147 on
page 334. For the BOOTRST Fuse “1” means unprogrammed while “0” means
programmed.
The most typical and general program setup for the Reset and Interrupt Vector
Addresses in ATmega640/1280/1281/2560/2561 is:
Address Labels
0x0000
0x0002
0x0004
0x0006
0x0008
0x000A
0x000C
0x000E
0x0010
0x0012
0x0014
0x0016
0X0018
0x001A
0x001C
0x001E
0x0020
0x0022
0x0024
0x0026
0x0028
0x002A
0x002C
0x002E
0x0030
0x0032
0x0034
0x0036
0x0038
0x003A
0x003C
0x003E
0x0040
0x0042
0x0044
0x0046
0x0048
Code
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Comments
RESET
; Reset Handler
INT0
; IRQ0 Handler
INT1
; IRQ1 Handler
INT2
; IRQ2 Handler
INT3
; IRQ3 Handler
INT4
; IRQ4 Handler
INT5
; IRQ5 Handler
INT6
; IRQ6 Handler
INT7
; IRQ7 Handler
PCINT0
; PCINT0 Handler
PCINT1
; PCINT1 Handler
PCINT2
; PCINT2 Handler
WDT
; Watchdog Timeout Handler
; Timer2 CompareA Handler
; Timer2 CompareB Handler
; Timer2 Overflow Handler
; Timer1 Capture Handler
; Timer1 CompareA Handler
; Timer1 CompareB Handler
; Timer1 CompareC Handler
; Timer1 Overflow Handler
; Timer0 CompareA Handler
; Timer0 CompareB Handler
; Timer0 Overflow Handler
; SPI Transfer Complete Handler
; USART0 RX Complete Handler
; USART0,UDR Empty Handler
; USART0 TX Complete Handler
; Analog Comparator Handler
; ADC Conversion Complete Handler
; EEPROM Ready Handler
; Timer3 Capture Handler
; Timer3 CompareA Handler
; Timer3 CompareB Handler
; Timer3 CompareC Handler
; Timer3 Overflow Handler
; USART1 RX Complete Handler
TIM2_COMPA
TIM2_COMPB
TIM2_OVF
TIM1_CAPT
TIM1_COMPA
TIM1_COMPB
TIM1_COMPC
TIM1_OVF
TIM0_COMPA
TIM0_COMPB
TIM0_OVF
SPI_STC
USART0_RXC
USART0_UDRE
USART0_TXC
ANA_COMP
ADC
EE_RDY
TIM3_CAPT
TIM3_COMPA
TIM3_COMPB
TIM3_COMPC
TIM3_OVF
USART1_RXC
71
2549A–AVR–03/05
ATMEL [ ATMEL ]
