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PIC18FXX8
DS41159E-page 84
2006 Microchip Technology Inc.
REGISTER 8-6:
PIR3: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 3
R/W-0
IRXIF
WAKIF
ERRIF
TXB2IF
TXB1IF
TXB0IF
RXB1IF
RXB0IF
bit 7
bit 0
bit 7
IRXIF: Invalid Message Received Interrupt Flag bit
1
= An invalid message has occurred on the CAN bus
0
= An invalid message has not occurred on the CAN bus
bit 6
WAKIF: Bus Activity Wake-up Interrupt Flag bit
1
= Activity on the CAN bus has occurred
0
= Activity on the CAN bus has not occurred
bit 5
ERRIF: CAN bus Error Interrupt Flag bit
1
= An error has occurred in the CAN module (multiple sources)
0
= An error has not occurred in the CAN module
bit 4
TXB2IF: Transmit Buffer 2 Interrupt Flag bit
1
= Transmit Buffer 2 has completed transmission of a message and may be reloaded
0
= Transmit Buffer 2 has not completed transmission of a message
bit 3
TXB1IF: Transmit Buffer 1 Interrupt Flag bit
1
= Transmit Buffer 1 has completed transmission of a message and may be reloaded
0
= Transmit Buffer 1 has not completed transmission of a message
bit 2
TXB0IF: Transmit Buffer 0 Interrupt Flag bit
1
= Transmit Buffer 0 has completed transmission of a message and may be reloaded
0
= Transmit Buffer 0 has not completed transmission of a message
bit 1
RXB1IF: Receive Buffer 1 Interrupt Flag bit
1
= Receive Buffer 1 has received a new message
0
= Receive Buffer 1 has not received a new message
bit 0
RXB0IF: Receive Buffer 0 Interrupt Flag bit
1
= Receive Buffer 0 has received a new message
0
= Receive Buffer 0 has not received a new message
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
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