Datasheet

47
8246A–AVR–11/09
ATtiny2313A/4313
9. Interrupts
This section describes the specifics of the interrupt handling as performed in ATtiny2313A/4313.
For a general explanation of the AVR interrupt handling, refer to “Reset and Interrupt Handling”
on page 12.
9.1 Interrupt Vectors
The interrupt vectors of ATtiny2313A/4313 are described in Table 9-1 below
In case the program never enables an interrupt source, the Interrupt Vectors will not be used
and, consequently, regular program code can be placed at these locations.
Table 9-1. Reset and Interrupt Vectors
Vector No. Program Address Label Interrupt Source
1 0x0000 RESET
External Pin, Power-on Reset, Brown-out
Reset, and Watchdog Reset
2 0x0001 INT0 External Interrupt Request 0
3 0x0002 INT1 External Interrupt Request 1
4 0x0003 TIMER1 CAPT Timer/Counter1 Capture Event
5 0x0004 TIMER1 COMPA Timer/Counter1 Compare Match A
6 0x0005 TIMER1 OVF Timer/Counter1 Overflow
7 0x0006 TIMER0 OVF Timer/Counter0 Overflow
8 0x0007 USART0, RX USART0, Rx Complete
9 0x0008 USART0, UDRE USART0 Data Register Empty
10 0x0009 USART0, TX USART0, Tx Complete
11 0x000A ANALOG COMP Analog Comparator
12 0x000B PCINT0 Pin Change Interrupt Request 0
13 0x000C TIMER1 COMPB Timer/Counter1 Compare Match B
14 0x000D TIMER0 COMPA Timer/Counter0 Compare Match A
15 0x000E TIMER0 COMPB Timer/Counter0 Compare Match B
16 0x000F USI START USI Start Condition
17 0x0010 USI OVERFLOW USI Overflow
18 0x0011 EE READY EEPROM Ready
19 0x0012 WDT OVERFLOW Watchdog Timer Overflow
20 0x0013 PCINT1 Pin Change Interrupt Request 1
21 0x0014 PCINT2 Pin Change Interrupt Request 2