Datasheet

 2003-2012 Microchip Technology Inc. DS21801G-page 37
MCP2515
REGISTER 4-17: RXMnEID0 – MASK n EXTENDED IDENTIFIER LOW
(ADDRESS: 23h, 27h)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 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<7:0>: Extended Identifier Mask bits
These bits hold the filter bits to be applied to bits <7:0> of the Extended Identifier portion of a received
message. If corresponding RXM = 00 and EXIDE = 0, these bits are applied to byte 1 in received data.
Note: The mask and filter registers read all '0' when in any mode except Configuration mode.