Datasheet

PIC18F66K80 FAMILY
DS39977F-page 156  2010-2012 Microchip Technology Inc.
REGISTER 10-8: PIR5: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 5
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IRXIF WAKIF ERRIF TXB2IF TXB1IF TXB0IF RXB1IF RXB0IF/
FIFOFIF
bit 7 bit 0
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
bit 7
IRXIF: Invalid Message Received Interrupt Flag bits
1 = An invalid message occurred on the CAN bus
0 = No invalid message occurred on the CAN bus
bit 6
WAKIF: Bus Wake-up Activity Interrupt Flag bit
1 = Activity on the CAN bus has occurred
0 = No activity on the CAN bus
bit 5
ERRIF: Error Interrupt Flag bit (Multiple sources in COMSTAT register)
1 = An error has occurred in the CAN module (multiple sources)
0 = No CAN module errors have occurred
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
Mode 0:
1 = CAN Receive Buffer 1 has received a new message
0 = CAN Receive Buffer 1 has not received a new message
Modes 1 and 2:
1 = A CAN Receive Buffer/FIFO has received a new message
0 = A CAN Receive Buffer/FIFO has not received a new message
bit 0 Bit operation is dependent on the selected mode:
Mode 0:
RXB0IF: Receive Buffer 0 Interrupt Flag bit
1 = CAN Receive Buffer 0 has received a new message
0 = CAN Receive Buffer 0 has not received a new message
Mode 1:
Unimplemented: Read as ‘0’
Mode 2:
FIFOFIF: FIFO Full Interrupt Flag bit
1 = FIFO has reached full status as defined by the FIFO_HF bit
0 = FIFO has not reached full status as defined by the FIFO_HF bit