DOC7707 datasheet(63/307 Pages) ETC1

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7707F–AVR–11/10

AT90USB82/162

10. Interrupts

This section describes the specifics of the interrupt handling as performed in AT90USB82/162.

For a general explanation of the AVR interrupt handling, refer to “Reset and Interrupt Handling”

on page 13.

10.1

Interrupt Vectors in AT90USB82/162

Table 10-1.

Reset and Interrupt Vectors

Vector

No.

Program

Address(2)

Source

Interrupt Definition

$0000(1)

RESET

External Pin, Power-on Reset, Brown-out Reset,

Watchdog Reset, USB Reset and debugWIRE AVR

Reset

$0002

INT0

External Interrupt Request 0

$0004

INT1

External Interrupt Request 1

$0006

INT2

External Interrupt Request 2

$0008

INT3

External Interrupt Request 3

$000A

INT4

External Interrupt Request 4

$000C

INT5

External Interrupt Request 5

$000E

INT6

External Interrupt Request 6

$0010

INT7

External Interrupt Request 7

$0012

PCINT0

Pin Change Interrupt Request 0

$0014

PCINT1

Pin Change Interrupt Request 1

$0016

USB General

USB General Interrupt request

$0018

USB Endpoint

USB Endpoint Interrupt request

$001A

WDT

Watchdog Time-out Interrupt

$001C

TIMER1 CAPT

Timer/Counter1 Capture Event

$001E

TIMER1 COMPA

Timer/Counter1 Compare Match A

$0020

TIMER1 COMPB

Timer/Counter1 Compare Match B

$0022

TIMER1 COMPC

Timer/Counter1 Compare Match C

$0024

TIMER1 OVF

Timer/Counter1 Overflow

$0026

TIMER0 COMPA

Timer/Counter0 Compare Match A

$0028

TIMER0 COMPB

Timer/Counter0 Compare match B

$002A

TIMER0 OVF

Timer/Counter0 Overflow

$002C

SPI, STC

SPI Serial Transfer Complete

$002E

USART1 RX

USART1 Rx Complete

$0030

USART1 UDRE

USART1 Data Register Empty

$0032

USART1TX

USART1 Tx Complete

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