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dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04 REGISTER 21-3: CiVEC: ECAN INTERRUPT CODE REGISTER U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0 — — — FILHIT bit 15 bit 8 U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0 — ICODE bit 7 bit 0 Legend: C = Writable bit, but only ‘0’ can be written to clear the bit 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 15-13 Unimplemented: Read as ‘0’ bit 12-8 FILHIT: Filter Hit Number bits 10000-11111 = Reserved 01111 = Filter 15 • • • 00001 = Filter 1 00000 = Filter 0 bit 7 Unimplemented: Read as ‘0’ bit 6-0 ICODE: Interrupt Flag Code bits 1000101-1111111 = Reserved 1000100 = FIFO almost full interrupt 1000011 = Receiver overflow interrupt 1000010 = Wake-up interrupt 1000001 = Error interrupt 1000000 = No interrupt • • • 0010000-0111111 = Reserved 0001111 = RB15 buffer Interrupt • • • 0001001 = RB9 buffer interrupt 0001000 = RB8 buffer interrupt 0000111 = TRB7 buffer interrupt 0000110 = TRB6 buffer interrupt 0000101 = TRB5 buffer interrupt 0000100 = TRB4 buffer interrupt 0000011 = TRB3 buffer interrupt 0000010 = TRB2 buffer interrupt 0000001 = TRB1 buffer interrupt 0000000 = TRB0 Buffer interrupt DS70291E-page 252 © 2011 Microchip Technology Inc.
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04 REGISTER 21-4: CiFCTRL: ECAN FIFO CONTROL REGISTER R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 DMABS — — — — — bit 15 bit 8 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 — — — FSA bit 7 bit 0 Legend: C = Writable bit, but only ‘0’ can be written to clear the bit 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 15-13 DMABS: DMA Buffer Size bits 111 = Reserved 110 = 32 buffers in DMA RAM 101 = 24 buffers in DMA RAM 100 = 16 buffers in DMA RAM 011 = 12 buffers in DMA RAM 010 = 8 buffers in DMA RAM 001 = 6 buffers in DMA RAM 000 = 4 buffers in DMA RAM bit 12-5 Unimplemented: Read as ‘0’ bit 4-0 FSA: FIFO Area Starts with Buffer bits 11111 = Read buffer RB31 11110 = Read buffer RB30 • • • 00001 = TX/RX buffer TRB1 00000 = TX/RX buffer TRB0 © 2011 Microchip Technology Inc. DS70291E-page 253
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