Datasheet

PIC18F2682/2685/4682/4685
DS39761C-page 294 © 2009 Microchip Technology Inc.
REGISTER 23-16: RXBnSIDL: RECEIVE BUFFER n STANDARD IDENTIFIER REGISTERS,
LOW BYTE [0 ≤ n ≤ 1]
R-x R-x R-x R-x R-x U-0 R-x R-x
SID2 SID1 SID0 SRR EXID
—EID17EID16
bit 7 bit 0
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
bit 7-5 SID2:SID0: Standard Identifier bits (if EXID = 0)
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 (RBXnCON<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
REGISTER 23-17: RXBnEIDH: RECEIVE BUFFER n EXTENDED IDENTIFIER REGISTERS,
HIGH BYTE [0 ≤ n ≤ 1]
R-x R-x R-x R-x R-x R-x R-x R-x
EID15 EID14 EID13 EID12 EID11 EID10 EID9 EID8
bit 7 bit 0
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
bit 7-0 EID15:EID8: Extended Identifier bits
REGISTER 23-18: RXBnEIDL: RECEIVE BUFFER n EXTENDED IDENTIFIER REGISTERS,
LOW BYTE [0 ≤ n ≤ 1]
R-x R-x R-x R-x R-x R-x R-x R-x
EID7 EID6 EID5 EID4 EID3 EID2 EID1 EID0
bit 7 bit 0
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
bit 7-0 EID7:EID0: Extended Identifier bits