T89C51CC01 Atmel, T89C51CC01 Datasheet - Page 88

• Manufacturer Part Number: T89C51CC01
• Description: Enhanced 8-Bit Microcontroller
• Manufacturer: Atmel

IT CAN Management
Figure 46. CAN Controller Interrupt Structure
88
T89C51CC01
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:
•
•
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,
ENERCH
CANGIE.3
CANSIT1/2
SIT i
SIT i
CANGIE.2
CANIE1/2
ENBUF
CANGIE.1
ENERG
EICH i
i=14
i=0
CANGIT.7
CANIT
IEN1.2
ETIM
ECAN
IEN1.0
OVRIT
CANIT
4129K–CAN–01/05