RXB0D2 datasheet(36/92 Pages) MICROCHIP

36 / 92 page

MCP2515

DS21801G-page 36

 2003-2012 Microchip Technology Inc.

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<2:0>: Standard Identifier Mask bits

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<17:16>: Extended Identifier Mask bits

These bits hold the mask bits to be applied to bits <17:16> of the Extended Identifier portion of a

received message

Note:

The mask and filter registers read all '0' when in any mode except Configuration mode.

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<15:8>: Extended Identifier bits

These bits hold the filter bits to be applied to bits <15:8> of the Extended Identifier portion of a received

message. If corresponding RXM = 00 and EXIDE = 0, these bits are applied to byte 0 in received data

Note:

The mask and filter registers read all '0' when in any mode except Configuration mode.

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