70353C Datasheet, PDF (22/76 Pages) Microchip Technology – Section 21. Enhanced Controller Area Network

dsPIC33E/PIC24E Family Reference Manual
Register 21-20: CiINTF: ECAN Interrupt Flag Register
U-0
—
bit 15
U-0
R-0
R-0
—
TXBO
TXBP
R-0
RXBP
R-0
TXWAR
R-0
RXWAR
R-0
EWARN
bit 8
R/C-0
IVRIF
bit 7
R/C-0
WAKIF
R/C-0
ERRIF
U-0
R/C-0
R/C-0
R/C-0
R/C-0
—
FIFOIF
RBOVIF
RBIF
TBIF
bit 0
Legend:
R = Readable bit
-n = Value at POR
C = Writable bit, but only ‘0’ can be written to clear the bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
TXBO: Transmitter in Error State Bus OFF bit
1 = Transmitter is in Bus OFF state
0 = Transmitter is not in Bus OFF state
TXBP: Transmitter in Error State Bus Passive bit
1 = Transmitter is in Bus Passive state
0 = Transmitter is not in Bus Passive state
RXBP: Receiver in Error State Bus Passive bit
1 = Receiver is in Bus Passive state
0 = Receiver is not in Bus Passive state
TXWAR: Transmitter in Error State Warning bit
1 = Transmitter is in Error Warning state
0 = Transmitter is not in Error Warning state
RXWAR: Receiver in Error State Warning bit
1 = Receiver is in Error Warning state
0 = Receiver is not in Error Warning state
EWARN: Transmitter or Receiver in Error State Warning bit
1 = Transmitter or receiver is in Error State Warning state
0 = Transmitter or receiver is not in Error State Warning state
IVRIF: Invalid Message Interrupt Flag bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
WAKIF: Bus Wake-up Activity Interrupt Flag bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
ERRIF: Error Interrupt Flag bit (multiple sources in CiINTF<13:8> bits)
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
Unimplemented: Read as ‘0’
FIFOIF: FIFO Almost Full Interrupt Flag bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
RBOVIF: RX Buffer Overflow Interrupt Flag bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
RBIF: RX Buffer Interrupt Flag bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
TBIF: TX Buffer Interrupt Flag bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
DS70353C-page 21-22
© 2008-2011 Microchip Technology Inc.