ATA6612C View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

ATA6612C

8K/16K Flash Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Atmel Corporation 

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5.9 Interrupts

This section describes the specifics of the interrupt handling as performed in Atmel® ATA6612C/ATA6613C. For a general

explanation of the AVR® interrupt handling, refer to Section 5.4.8 “Reset and Interrupt Handling” on page 36.

The interrupt vectors in Atmel ATA6612C and ATA6613C are generally the same, with the following differences:

● Each interrupt vector occupies two instruction words in ATA6613C, and one instruction word in Atmel ATA6612C.

● In Atmel ATA6612C and ATA6613C, the reset vector is affected by the BOOTRST fuse, and the Interrupt vector start

address is affected by the IVSEL bit in MCUCR.

5.9.1 Interrupt Vectors in Atmel ATA6612C

Table 5-26. Reset and Interrupt Vectors in Atmel ATA6612C

Vector No. Program Address(2) Source

Interrupt Definition

1

0x000(1)

RESET

External pin, power-on reset, brown-out reset and watchdog

system reset

2

0x001

INT0

External interrupt request 0

3

0x002

INT1

External interrupt request 1

4

0x003

PCINT0

Pin change interrupt request 0

5

0x004

PCINT1

Pin change interrupt request 1

6

0x005

PCINT2

Pin change interrupt request 2

7

0x006

WDT

Watchdog time-out interrupt

8

0x007

TIMER2 COMPA Timer/Counter2 compare match A

9

0x008

TIMER2 COMPB Timer/Counter2 compare match B

10

0x009

TIMER2 OVF

Timer/Counter2 overflow

11

0x00A

TIMER1 CAPT

Timer/Counter1 capture event

12

0x00B

TIMER1 COMPA Timer/Counter1 compare match A

13

0x00C

TIMER1 COMPB Timer/coutner1 compare match B

14

0x00D

TIMER1 OVF

Timer/Counter1 overflow

15

0x00E

TIMER0 COMPA Timer/Counter0 compare match A

16

0x00F

TIMER0 COMPB Timer/Counter0 compare match B

17

0x010

TIMER0 OVF

Timer/Counter0 overflow

18

0x011

SPI, STC

SPI serial transfer complete

19

0x012

USART, RX

USART Rx complete

20

0x013

USART, UDRE

USART, data register empty

21

0x014

USART, TX

USART, Tx complete

22

0x015

ADC

ADC conversion complete

23

0x016

EE READY

EEPROM ready

24

0x017

ANALOG COMP

Analog comparator

25

0x018

TWI

2-wire serial interface

26

Notes: 1.

2.

0x019

SPM READY

Store program memory ready

When the BOOTRST fuse is programmed, the device will jump to the boot loader address at reset (see

Section 5.23 “Boot Loader Support – Read-While-Write Self-Programming, Atmel ATA6612C and ATA6613C”

on page 240).

When the IVSEL bit in MCUCR is set, Interrupt vectors will be moved to the start of the boot flash section. The

address of each interrupt vector will then be the address in this table added to the start address of the boot

flash section.

70 ATA6612C/ATA6613C [DATASHEET]

9111L–AUTO–11/14

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