PIC18F258 Datasheet, PDF (207/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
REGISTER 19-5: TXBnSIDH: TRANSMIT BUFFER n STANDARD IDENTIFIER, HIGH BYTE
R/W-x
SID10
bit 7
R/W-x
SID9
R/W-x
SID8
R/W-x
SID7
R/W-x
SID6
R/W-x
SID5
R/W-x
SID4
R/W-x
SID3
bit 0
bit 7-0
SID10:SID3: Standard Identifier bits, if EXIDE = 0 (TXBnSID Register)
Extended Identifier bits EID28:EID21, if EXIDE = 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 19-6: TXBnSIDL – TRANSMIT BUFFER n STANDARD IDENTIFIER, LOW BYTE
R/W-x
SID2
bit 7
R/W-x
SID1
R/W-x
SID0
R/W-x
—
R/W-x
EXIDE
R/W-x
—
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 EXIDE = 0
Extended Identifier bits EID20:EID18, if EXIDE = 1
Unimplemented: Read as ’0’
EXIDE: Extended Identifier Enable bit
1 = Message will transmit Extended ID, SID10:SID0 becomes EID28:EID18
0 = Message will transmit Standard ID, EID17:EID0 are ignored
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 19-7: TXBnEIDH – TRANSMIT BUFFER n EXTENDED IDENTIFIER, HIGH BYTE
R/W-x
EID15
bit 7
R/W-x
EID14
R/W-x
EID13
R/W-x
EID12
R/W-x
EID11
R/W-x
EID10
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
 2002 Microchip Technology Inc.
Preliminary
DS41159B-page 205