AT89C51CC03CA-7CTUM ATMEL [ATMEL Corporation], AT89C51CC03CA-7CTUM Datasheet - Page 95

• Manufacturer Part Number: AT89C51CC03CA-7CTUM
• Description: Enhanced 8-bit MCU with CAN Controller and Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

IT CAN Management
Figure 50. CAN Controller Interrupt Structure
4182K–CAN–05/06
CANSTCH.5
CANSTCH.6
CANSTCH.4
CANSTCH.3
CANSTCH.2
CANSTCH.1
CANSTCH.0
OVRBUF
CANGIT.3
CANGIT.1
CANGIT.2
CANGIT.0
OVRTIM
CANGIT.4
CANGIT.5
RXOK i
BERR i
SERR i
CERR i
AERR i
TXOK i
FERR i
SERG
CERG
FERG
AERG
CANGIE.5
ENRX
The different interrupts are:
•
•
•
•
•
To enable a transmission interrupt:
•
•
•
To enable a reception interrupt:
•
•
•
To enable an interrupt on message object error:
CANGIE.4
ENTX
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.
Enable General CAN IT in the interrupt system register,
Enable interrupt by message object, EICHi,
Enable transmission interrupt, ENTX.
Enable General CAN IT in the interrupt system register,
Enable interrupt by message object, EICHi,
Enable reception interrupt, ENRX.
ENERCH
CANGIE.3
CANSIT1/2
SIT i
SIT i
CANGIE.2
CANIE1/2
ENBUF
CANGIE.1
EICH i
ENERG
i=14
i=0
AT89C51CC03
ECAN
IEN1.0
IEN1.2
ETIM
CANGIT.7
CANIT
OVRIT
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