MCP2517FD datasheet(33/98 Pages) MICROCHIP

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 2017-2018 Microchip Technology Inc.

DS20005688B-page 33

MCP2517FD

bit 6-0

ICODE[6:0]

: Interrupt Flag Code bits( 1)

1001011-1111111

= Reserved

1001010

= Transmit Attempt Interrupt (any bit in CiTXATIF set)

1001001

= Transmit Event FIFO Interrupt (any bit in CiTEFIF set)

1001000

= Invalid Message Occurred (IVMIF/IE)

1000111

= Operation Mode Change Occurred (MODIF/IE)

1000110

= TBC Overflow (TBCIF/IE)

1000101

= RX/TX MAB Overflow/Underflow (RX: message received before previous message was

saved to memory; TX: can't feed TX MAB fast enough to transmit consistent data.)

(SERRIF/IE)

1000100

= Address Error Interrupt (illegal FIFO address presented to system) (SERRIF/IE)

1000011

= Receive FIFO Overflow Interrupt (any bit in CiRXOVIF set)

1000010

= Wake-up interrupt (WAKIF/WAKIE)

1000001

= Error Interrupt (CERRIF/IE)

1000000

= No interrupt

0100000-0111111

= Reserved

0011111

= FIFO 31 Interrupt (TFIF<31> or RFIF<31> set)

...

0000001

= FIFO 1 Interrupt (TFIF<1> or RFIF<1> set)

0000000

= TXQ Interrupt (TFIF<0> set)

CiVEC – INTERRUPT CODE REGISTER (CONTINUED)

Note 1:

If multiple interrupts are pending, the interrupt with the highest number will be indicated.

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