MCP2515-E/PRB2 Microchip Technology, MCP2515-E/PRB2 Datasheet - Page 31

• 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 4-7:
REGISTER 4-8:
REGISTER 4-9:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
RBnDm7
EID7
EID7
R-x
R-x
R-x
EID: Extended Identifier bits <7:0>
These bits hold the least significant eight bits of the Extended Identifier for the received message
Unimplemented: Reads as ‘0’
RTR: Extended Frame Remote Transmission Request bit
(valid only when RXBnSIDL.IDE = ‘1’)
1 = Extended Frame Remote Transmit Request Received
0 = Extended Data Frame Received
RB1: Reserved Bit 1
RB0: Reserved Bit 0
DLC: Data Length Code bits <3:0>
Indicates number of data bytes that were received
RBnDm7:RBnDm0: Receive Buffer n Data Field Bytes m
Eight bytes containing the data bytes for the received message
RBnDm6
EID6
EID6
R-x
R-x
R-x
RXBnEID0 – RECEIVE BUFFER n EXTENDED IDENTIFIER LOW
(ADDRESS: 64h, 74h)
RXBnDLC – RECEIVE BUFFER n DATA LENGHT CODE
(ADDRESS: 65h, 75h)
RXBnDM – RECEIVE BUFFER n DATA BYTE M
(ADDRESS: 66h - 6Dh, 76h - 7Dh)
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
RBnDm5
EID5
EID5
R-x
R-x
R-x
RBnDm4
EID4
EID4
R-x
R-x
R-x
‘0’ = Bit is cleared
‘0’ = Bit is cleared
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
RBnDm3
EID3
EID3
R-x
R-x
R-x
RBnDm2
EID2
EID2
R-x
R-x
R-x
x = Bit is unknown
x = Bit is unknown
x = Bit is unknown
RBnDm1
MCP2515
EID1
EID1
R-x
R-x
R-x
DS21801E-page 31
RBnDm0
EID0
EID0
R-x
R-x
R-x
bit 0
bit 0
bit 0