MCP2515
REGISTER 4-10:
RXFnSIDH – FILTER n STANDARD IDENTIFIER HIGH
(ADDRESS: 00h, 04h, 08h, 10h, 14h, 18h)
R/W-x
SID10
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 7
Legend:
bit 0
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
Note:
SID<10:3>: Standard Identifier Filter bits
These bits hold the filter bits to be applied to bits <10:3> of the Standard Identifier portion of a received
message
The mask and filter registers read all ' 0 ' when in any mode except Configuration mode.
REGISTER 4-11:
RXFnSIDL – FILTER n STANDARD IDENTIFIER LOW
(ADDRESS: 01h, 05h, 09h, 11h, 15h, 19h)
R/W-x
SID2
R/W-x
SID1
R/W-x
SID0
U-0
R/W-x
EXIDE
U-0
R/W-x
EID17
R/W-x
EID16
bit 7
Legend:
bit 0
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
bit 4
bit 3
bit 2
bit 1-0
Note:
SID<2:0>: Standard Identifier Filter bits
These bits hold the filter bits to be applied to bits <2:0> of the Standard Identifier portion of a received
message
Unimplemented: Reads as ‘ 0 ’
EXIDE: Extended Identifier Enable bit
1 = Filter is applied only to Extended Frames
0 = Filter is applied only to Standard Frames
Unimplemented: Reads as ‘ 0 ’
EID<17:16>: Extended Identifier Filter bits
These bits hold the filter bits to be applied to bits <17:16> of the Extended Identifier portion of a
received message
The mask and filter registers read all ' 0 ' when in any mode except Configuration mode.
DS21801G-page 34
? 2003-2012 Microchip Technology Inc.
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相关代理商/技术参数
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