Datasheet

MCP2515
DS20001801J-page 20  2003-2019 Microchip Technology Inc.
REGISTER 3-3: TXBnSIDH: TRANSMIT BUFFER n STANDARD IDENTIFIER REGISTER HIGH
(ADDRESS: 31h, 41h, 51h)
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
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 SID[10:3]: Standard Identifier bits
REGISTER 3-4: TXBnSIDL: TRANSMIT BUFFER n STANDARD IDENTIFIER REGISTER LOW
(ADDRESS: 32h, 42h, 52h)
R/W-x R/W-x R/W-x U-0 R/W-x U-0 R/W-x R/W-x
SID2 SID1 SID0
— EXIDE — EID17 EID16
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 SID[2:0]: Standard Identifier bits
bit 4 Unimplemented: Read as ‘0’
bit 3 EXIDE: Extended Identifier Enable bit
1 = Message will transmit Extended Identifier
0 = Message will transmit Standard Identifier
bit 2 Unimplemented: Read as ‘0’
bit 1-0 EID[17:16]: Extended Identifier bits