MCP2515
DS21801F-page 36
2010 Microchip Technology Inc.
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REGISTER 4-15:
RXMnSIDL – MASK n STANDARD IDENTIFIER LOW
(ADDRESS: 21h, 25h)
R/W-0
U-0
R/W-0
SID2
SID1
SID0
—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: Standard Identifier Mask bits <2:0>
These bits hold the mask bits to be applied to bits<2:0> of the Standard Identifier portion of a received
message
bit 4-2
Unimplemented: Reads as ‘0’
bit 1-0
EID: Extended Identifier Mask bits <17:16>
These bits hold the mask bits to be applied to bits <17:16> of the Extended Identifier portion of a
received message
REGISTER 4-16:
RXMnEID8 – MASK n EXTENDED IDENTIFIER HIGH
(ADDRESS: 22h, 26h)
R/W-0
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
EID: Extended Identifier bits <15:8>
These bits hold the filter bits to be applied to bits <15:8> of the Extended Identifier portion of a received
message
REGISTER 4-17:
RXMnEID0 – MASK n EXTENDED IDENTIFIER LOW
(ADDRESS: 23h, 27h)
R/W-0
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
EID: Extended Identifier Mask bits <7:0>
These bits hold the mask bits to be applied to the bits <7:0> of the Extended Identifier portion of a
received message
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