MCP2510-EST datasheet(26/76 Pages) MICROCHIP

26 / 76 page

MCP2510

DS21291C-page 26

Preliminary

 2000 Microchip Technology Inc.

BFPCTRL - RXNBF Pin Control and Status Register (ADDRESS: 0Ch)

RXBNSIDH - Receive Buffer N Standard Identifier High (ADDRESS: 61h, 71h)

U-0

R/W-0

—

B1BFS

B0BFS

B1BFE

B0BFE

B1BFM

B0BFM

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:

Unimplemented: Reads as ‘0’

bit 5:

B1BFS: RX1BF Pin State (digital output mode only)

Reads as 0 when RX1BF is configured as interrupt pin

bit 4:

B0BFS: RX0BF Pin State (digital output mode only)

Reads as 0 when RX0BF is configured as interrupt pin

bit 3:

B1BFE: RX1BF Pin Function Enable

1 = Pin function enabled, operation mode determined by B1BFM bit

0 = Pin function disabled, pin goes to high impedance state

bit 2:

B0BFE: RX0BF Pin Function Enable

1 = Pin function enabled, operation mode determined by B0BFM bit

0 = Pin Function disabled, pin goes to high impedance state

bit 1:

B1BFM: RX1BF Pin Operation Mode

1 = Pin is used as interrupt when valid message loaded into RXB1

0 = Digital output mode

bit 0:

B0BFM: RX0BF Pin Operation Mode

1 = Pin is used as interrupt when valid message loaded into RXB0

0 = Digital output mode

R-x

SID10

SID9

SID8

SID7

SID6

SID5

SID4

SID3

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 7-0:

SID<10:3>: Standard Identifier Bits <10:3>

These bits contain the eight most significant bits of the Standard Identifier for the received message

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