PIC18FXX8 Datasheet, PDF (214/402 Pages) Microchip Technology – 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

PIC18FXX8
REGISTER 19-14: RXBnSIDH: RECEIVE BUFFER n STANDARD IDENTIFIER,
HIGH BYTE REGISTERS
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
SID10
SID9
SID8
SID7
SID6
SID5
bit 7
R/W-x
SID4
R/W-x
SID3
bit 0
bit 7-0
SID10:SID3: Standard Identifier bits if EXID = 0 (RXBnSIDL Register) or
Extended Identifier bits EID28:EID21 if EXID = 1
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 19-15: RXBnSIDL: RECEIVE BUFFER n STANDARD IDENTIFIER,
LOW BYTE REGISTERS
R/W-x R/W-x R/W-x R/W-x R/W-x
U-0
SID2
SID1
SID0
SRR
EXID
—
bit 7
R/W-x
EID17
R/W-x
EID16
bit 0
bit 7-5
bit 4
bit 3
bit 2
bit 1-0
SID2:SID0: Standard Identifier bits if EXID = 0 or
Extended Identifier bits EID20:EID18 if EXID = 1
SRR: Substitute Remote Request bit
This bit is always ‘0’ when EXID = 1 or equal to the value of RXRTRRO (RXnBCON<3>)
when EXID = 0.
EXID: Extended Identifier bit
1 = Received message is an extended data frame, SID10:SID0 are EID28:EID18
0 = Received message is a standard data frame
Unimplemented: Read as ‘0’
EID17:EID16: 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 19-16: RXBnEIDH: RECEIVE BUFFER n EXTENDED IDENTIFIER,
HIGH BYTE REGISTERS
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID15 EID14 EID13 EID12 EID11 EID10
bit 7
R/W-x
EID9
R/W-x
EID8
bit 0
bit 7-0
EID15:EID8: 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
DS41159D-page 212
 2004 Microchip Technology Inc.