MCP2515-I/SO Microchip Technology Inc., MCP2515-I/SO Datasheet - Page 30

• Manufacturer Part Number: MCP2515-I/SO
• Description: CAN CONTROLLER WITH SPI INTERFACE
• Manufacturer: Microchip Technology Inc.
• Type: Programmable Peripheral Interfacer

Specifications of MCP2515-I/SO

• Package Type: 18-Pin SOIC
• Voltage, Supply: 2.7-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

MCP2515
REGISTER 4-5:
REGISTER 4-6:
DS21801D-page 30
bit 7-5
bit 4
bit 3
bit 2
bit 1-0
bit 7-0
RXBnSIDL – RECEIVE BUFFER n STANDARD IDENTIFIER LOW
(ADDRESS: 62h, 72h)
RXBnEID8 – RECEIVE BUFFER n EXTENDED IDENTIFIER HIGH
(ADDRESS: 63h, 73h)
bit 7
bit 7
SID: Standard Identifier bits <2:0>
These bits contain the three least significant bits of the Standard Identifier for the received
message
SRR: Standard Frame Remote Transmit Request bit (valid only if IDE bit = ‘0’)
1 = Standard Frame Remote Transmit Request Received
0 = Standard Data Frame Received
IDE: Extended Identifier Flag bit
This bit indicates whether the received message was a Standard or an Extended Frame
1 = Received message was an Extended Frame
0 = Received message was a Standard Frame
Unimplemented: Reads as ‘0’
EID: Extended Identifier bits <17:16>
These bits contain the two most significant bits of the Extended Identifier for the received
message
EID: Extended Identifier bits <15:8>
These bits hold bits 15 through 8 of the Extended Identifier for the received message
Legend:
R = Readable bit
-n = Value at POR
Legend:
R = Readable bit
-n = Value at POR
EID15
SID2
R-x
R-x
EID14
SID1
R-x
R-x
EID13
SID0
R-x
R-x
Preliminary
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
EID12
SRR
R-x
R-x
EID11
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
IDE
R-x
R-x
EID10
U-0
R-x
—
© 2005 Microchip Technology Inc.
x = Bit is unknown
x = Bit is unknown
EID17
EID9
R-x
R-x
EID16
EID8
R-x
R-x
bit 0
bit 0