MCP2510-SLASHST datasheet(27/80 Pages) MICROCHIP

27 / 80 page

DS21291F-page 27

MCP2510

RXBNSIDL - RECEIVE BUFFER N STANDARD IDENTIFIER LOW

(ADDRESS: 62h, 72h)

RXBNEID8 - RECEIVE BUFFER N EXTENDED IDENTIFIER MID

(ADDRESS: 63h, 73h)

R-x

U-0

R-x

SID2

SID1

SID0

SRR

IDE

—EID17

EID16

bit 7

bit 0

bit 7-5

SID<2:0>: Standard Identifier Bits <2:0>

These bits contain the three least significant bits of the Standard Identifier for the received mes-

sage

bit 4

SRR: Standard Frame Remote Transmit Request Bit (valid only if IDE bit = ‘0’)

= Standard Frame Remote Transmit Request Received

= Standard Data Frame Received

bit 3

IDE: Extended Identifier Flag

This bit indicates whether the received message was a Standard or an Extended Frame

= Received message was an Extended Frame

= Received message was a Standard Frame

bit 2

Unimplemented: Reads as '0'

bit 1-0

EID<17:16>: Extended Identifier Bits <17:16>

These bits contain the two most significant bits of the Extended Identifier for the received mes-

sage

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

R-x

EID15

EID14

EID13

EID12

EID11

EID10

EID9

EID8

bit 7

bit 0

bit 7-0

EID<15:8>: Extended Identifier Bits <15:8>

These bits hold bits 15 through 8 of the Extended Identifier for the received message

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

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