PIC18F26K80-I Datasheet, PDF (434/622 Pages) Microchip Technology – 28/40/44/64-Pin, Enhanced Flash Microcontrollers with ECAN™ and nanoWatt XLP Technology

PIC18F66K80 FAMILY
27.2.6 CAN INTERRUPT REGISTERS
The registers in this section are the same as described
in Section 10.0 “Interrupts”. They are duplicated here
for convenience.
REGISTER 27-56: PIR5: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 5
Mode 0
R/W-0
IRXIF
R/W-0
WAKIF
R/W-0
ERRIF
R/W-0
R/W-0
R/W-0
TXB2IF TXB1IF⁽¹⁾ TXB0IF⁽¹⁾
R/W-0
RXB1IF
Mode 1,2
R/W-0
IRXIF
bit 7
R/W-0
WAKIF
R/W-0
ERRIF
R/W-0
R/W-0
R/W-0
TXBnIF TXB1IF⁽¹⁾ TXB0IF⁽¹⁾
R/W-0
RXBnIF
R/W-0
RXB0IF
R/W-0
FIFOWMIF
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1:
IRXIF: CAN Bus Error Message Received Interrupt Flag bit
1 = An invalid message has occurred on the CAN bus
0 = No invalid message on the CAN bus
WAKIF: CAN Bus Activity Wake-up Interrupt Flag bit
1 = Activity on the CAN bus has occurred
0 = No activity on the CAN bus
ERRIF: CAN Module Error Interrupt Flag bit
1 = An error has occurred in the CAN module (multiple sources; refer to Section 27.15.6 “Error Interrupt”)
0 = No CAN module errors
When CAN is in Mode 0:
TXB2IF: CAN 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
When CAN is in Mode 1 or 2:
TXBnIF: Any Transmit Buffer Interrupt Flag bit
1 = One or more transmit buffers have completed transmission of a message and may be reloaded
0 = No transmit buffer is ready for reload
TXB1IF: CAN Transmit Buffer 1 Interrupt Flag bit⁽¹⁾
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
TXB0IF: CAN Transmit Buffer 0 Interrupt Flag bit⁽¹⁾
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
When CAN is in Mode 0:
RXB1IF: CAN 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
When CAN is in Mode 1 or 2:
RXBnIF: Any Receive Buffer Interrupt Flag bit
1 = One or more receive buffers has received a new message
0 = No receive buffer has received a new message
When CAN is in Mode 0:
RXB0IF: CAN 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
When CAN is in Mode 1:
Unimplemented: Read as ‘0’
When CAN is in Mode 2:
FIFOWMIF: FIFO Watermark Interrupt Flag bit
1 = FIFO high watermark is reached
0 = FIFO high watermark is not reached
In CAN Mode 1 and 2, these bits are forced to ‘0’.
DS39977F-page 434
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