MCP2515-E/PRB2 Microchip Technology, MCP2515-E/PRB2 Datasheet - Page 29

• Manufacturer Part Number: MCP2515-E/PRB2
• Description: CAN controller with SPI interface, 125 deg C, -40C to +125C, 18-PDIP, TUBE
• Manufacturer: Microchip Technology

REGISTER 4-3:
REGISTER 4-4:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
SID10
U-0
R-x
—
Unimplemented: Read as ‘0’
Unimplemented: Read as ‘0’
B1BFS: RX1BF Pin State bit (Digital Output mode only)
- Reads as ‘0’ when RX1BF is configured as interrupt pin
B0BFS: RX0BF Pin State bit (Digital Output mode only)
- Reads as ‘0’ when RX0BF is configured as interrupt pin
B1BFE: RX1BF Pin Function Enable bit
1 = Pin function enabled, operation mode determined by B1BFM bit
0 = Pin function disabled, pin goes to high-impedance state
B0BFE: RX0BF Pin Function Enable bit
1 = Pin function enabled, operation mode determined by B0BFM bit
0 = Pin function disabled, pin goes to high-impedance state
B1BFM: RX1BF Pin Operation Mode bit
1 = Pin is used as interrupt when valid message loaded into RXB1
0 = Digital Output mode
B0BFM: RX0BF Pin Operation Mode bit
1 = Pin is used as interrupt when valid message loaded into RXB0
0 = Digital Output mode
SID: Standard Identifier bits <10:3>
These bits contain the eight most significant bits of the Standard Identifier for the received message
SID9
U-0
R-x
—
BFPCTRL – RXnBF PIN CONTROL AND STATUS
(ADDRESS: 0Ch)
RXBnSIDH – RECEIVE BUFFER n STANDARD IDENTIFIER HIGH
(ADDRESS: 61h, 71h)
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
B1BFS
R/W-0
SID8
R-x
B0BFS
R/W-0
SID7
R-x
‘0’ = Bit is cleared
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
B1BFE
R/W-0
SID6
R-x
B0BFE
R/W-0
SID5
R-x
x = Bit is unknown
x = Bit is unknown
B1BFM
R/W-0
MCP2515
SID4
R-x
DS21801E-page 29
B0BFM
R/W-0
SID3
R-x
bit 0
bit 0