ATMEGA3250P_14 Datasheet, PDF (53/364 Pages) ATMEL Corporation – High Endurance Non-volatile Memory segments

ATmega325P/3250P
11. Interrupts
11.1 Overview
This section describes the specifics of the interrupt handling as performed in
ATmega325P/3250P. For a general explanation of the AVR interrupt handling, refer to ”Reset
and Interrupt Handling” on page 17.
11.2 Interrupt Vectors
Table 11-1. Reset and Interrupt Vectors
Vector
No.
Program
Address⁽²⁾ Source
Interrupt Definition
1
0x0000⁽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 USART, RX
USART0, Rx Complete
15
0x001C USART, UDRE
USART0 Data Register Empty
16
0x001E USART, 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
24⁽³⁾
25⁽³⁾
0x002C
0x002E
0x0030
NOT_USED
PCINT2
PCINT3
RESERVED
Pin Change Interrupt Request 2
Pin Change Interrupt Request 3
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 256.
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