AT89C51CC03U-RDTIM datasheet(90/183 Pages) ATMEL

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AT89C51CC03

4182B–CAN–09/03

IT CAN Management

The different interrupts are:

•

Transmission interrupt,

•

Reception interrupt,

•

Interrupt on error (bit error, stuff error, crc error, form error, acknowledge error),

•

Interrupt when Buffer receive is full,

•

Interrupt on overrun of CAN Timer.

Figure 46. CAN Controller Interrupt Structure

To enable a transmission interrupt:

•

Enable General CAN IT in the interrupt system register,

•

Enable interrupt by message object, EICHi,

•

Enable transmission interrupt, ENTX.

To enable a reception interrupt:

•

Enable General CAN IT in the interrupt system register,

•

Enable interrupt by message object, EICHi,

•

Enable reception interrupt, ENRX.

To enable an interrupt on message object error:

SIT i

i=0

i=14

OVRIT

ENRX

CANGIE.5

ENTX

CANGIE.4

ENERCH

CANGIE.3

ENBUF

CANGIE.2

ECAN

IEN1.0

RXOK i

CANSTCH.5

TXOK i

CANSTCH.6

BERR i

CANSTCH.4

SERR i

CANSTCH.3

FERR i

CANSTCH.1

CERR i

CANSTCH.2

AERR i

CANSTCH.0

EICH i

CANIE1/2

OVRTIM

CANGIT.5

CANIT

CANGIT.7

OVRBUF

CANGIT.4

FERG

CANGIT.1

AERG

CANGIT.0

SERG

CANGIT.3

CERG

CANGIT.2

ENERG

CANGIE.1

ETIM

IEN1.2

SIT i

CANSIT1/2

AT89C51CC03U-RDTIM Datasheet(PDF) 90 Page - ATMEL Corporation

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