MCP2510-EST datasheet(25/76 Pages) MICROCHIP

25 / 76 page

 2000 Microchip Technology Inc.

Preliminary

DS21291C-page 25

MCP2510

RXB1CTRL - Receive Buffer 1 Control Register (ADDRESS: 70h)

U-0

R/W-0

U-0

R-0

—

RXM1

RXM0

—

RXRTR

FILHIT2

FILHIT1 FILHIT0

R = Readable bit

W = Writable bit

C = Bit can be cleared by

MCU but not set

U = Unimplemented -

reads as ‘0’

- n = Value at POR reset

bit 7

bit 0

bit 7:

Unimplemented: Reads as ‘0’

bit 6-5:

RXM<1:0>: Receive Buffer Operating Mode

11 = Turn mask/filters off; receive any message

10 = Receive only valid messages with extended identifiers that meet filter criteria

01 = Receive only valid messages with standard identifiers that meet filter criteria

00 = Receive all valid messages using either standard or extended identifiers that meet filter criteria

bit 4:

Unimplemented: Reads as ‘0’

bit 3:

RXRTR: Received Remote Transfer Request

1 = Remote Transfer Request Received

0 = No Remote Transfer Request Received

bit 2-0:

FILHIT<2:0>: Filter Hit - indicates which acceptance filter enabled reception of message

101 = Acceptance Filter 5 (RXF5)

100 = Acceptance Filter 4 (RXF4)

011 = Acceptance Filter 3 (RXF3)

010 = Acceptance Filter 2 (RXF2)

001 = Acceptance Filter 1 (RXF1) (Only if BUKT bit set in RXB0CTRL)

000 = Acceptance Filter 0 (RXF0) (Only if BUKT bit set in RXB0CTRL)

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