Datasheet

MCP2510
DS21291F-page 26 © 2007 Microchip Technology Inc.
REGISTER 4-3: BFPCTRL - RXNBF PIN CONTROL AND STATUS REGISTER
(ADDRESS: 0Ch)
REGISTER 4-4: RXB
NSIDH - RECEIVE BUFFER N STANDARD IDENTIFIER HIGH
(ADDRESS: 61h, 71h)
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — B1BFS B0BFS B1BFE B0BFE B1BFM B0BFM
bit 7 bit 0
bit 7 Unimplemented: Read as '0'
bit 6 Unimplemented: Read 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
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 R-x R-x R-x R-x R-x R-x R-x
SID10SID9SID8SID7SID6SID5SID4SID3
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 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