
PIC18F6585/8585/6680/8680
DS30491C-page 294
2004 Microchip Technology Inc.
REGISTER 23-15: RXBnSIDH: RECEIVE BUFFER n STANDARD IDENTIFIER REGISTERS,
HIGH BYTE [0
≤ n ≤ 1]
REGISTER 23-16: RXBnSIDL: RECEIVE BUFFER n STANDARD IDENTIFIER REGISTERS,
LOW BYTE [0
≤ n ≤ 1]
REGISTER 23-17: RXBnEIDH: RECEIVE BUFFER n EXTENDED IDENTIFIER REGISTERS,
HIGH BYTE [0
≤ n ≤ 1]
R-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<3>);
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-x
U-0
R-x
SID2
SID1
SID0
SRR
EXID
—EID17
EID16
bit 7
bit 0
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
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-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