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MCP2510
DS21291F-page 26
2007 Microchip Technology Inc.
REGISTER 4-3:
BFPCTRL - RXNBF PIN CONTROL AND STATUS REGISTER
(ADDRESS: 0Ch)
REGISTER 4-4:
RXBNSIDH - RECEIVE BUFFER N STANDARD IDENTIFIER HIGH
(ADDRESS: 61h, 71h)
U-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
SID10
SID9SID8SID7SID6SID5SID4SID3
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