PIC18FXX8 Datasheet, PDF (215/402 Pages) Microchip Technology – 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

PIC18FXX8
REGISTER 19-17: RXBnEIDL: RECEIVE BUFFER n EXTENDED IDENTIFIER,
LOW BYTE REGISTERS
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID7
EID6
EID5
EID4
EID3
EID2
bit 7
R/W-x
EID1
R/W-x
EID0
bit 0
bit 7-0
EID7:EID0: Extended Identifier bits
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
REGISTER 19-18: RXBnDLC: RECEIVE BUFFER n DATA LENGTH CODE REGISTERS
U-0
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
—
RXRTR RB1
RB0
DLC3
DLC2
DLC1
bit 7
R/W-x
DLC0
bit 0
bit 7
bit 6
bit 5
bit 4
bit 3-0
Unimplemented: Read as ‘0’
RXRTR: Receiver Remote Transmission Request bit
1 = Remote transfer request
0 = No remote transfer request
RB1: Reserved bit 1
Reserved by CAN spec and read as ‘0’.
RB0: Reserved bit 0
Reserved by CAN spec and read as ‘0’.
DLC3:DLC0: Data Length Code bits
1111 = Invalid
1110 = Invalid
1101 = Invalid
1100 = Invalid
1011 = Invalid
1010 = Invalid
1001 = Invalid
1000 = Data Length = 8 bytes
0111 = Data Length = 7 bytes
0110 = Data Length = 6 bytes
0101 = Data Length = 5 bytes
0100 = Data Length = 4 bytes
0011 = Data Length = 3 bytes
0010 = Data Length = 2 bytes
0001 = Data Length = 1 bytes
0000 = Data Length = 0 bytes
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
 2004 Microchip Technology Inc.
DS41159D-page 213