Datasheet

PIC18FXX8
DS41159E-page 212 © 2006 Microchip Technology Inc.
REGISTER 19-14: RXBnSIDH: RECEIVE BUFFER n STANDARD IDENTIFIER,
HIGH BYTE REGISTERS
REGISTER 19-15: RXBnSIDL: RECEIVE BUFFER n STANDARD IDENTIFIER,
LOW BYTE REGISTERS
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 R/W-x R/W-x
SID10 SID9 SID8 SID7 SID6 SID5 SID4 SID3
bit 7 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 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
R/W-x R/W-x R/W-x R/W-x R/W-x U-0 R/W-x R/W-x
SID2 SID1 SID0 SRR EXID —EID17EID16
bit 7 bit 0
bit 7-5 SID2:SID0: Standard Identifier bits if EXID = 0 or
Extended Identifier bits EID20:EID18 if EXID = 1
bit 4 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.
bit 3 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
bit 2 Unimplemented: Read as ‘0’
bit 1-0 EID17:EID16: Extended Identifier bits
Legend:
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
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID15 EID14 EID13 EID12 EID11 EID10 EID9 EID8
bit 7 bit 0
bit 7-0 EID15:EID8: Extended Identifier bits
Legend:
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