MCP2510-EP Microchip Technology, MCP2510-EP Datasheet - Page 27

• Manufacturer Part Number: MCP2510-EP
• Description: Stand-Alone CAN Controller with SPI Interface
• Manufacturer: Microchip Technology

REGISTER 4-5: RXB
REGISTER 4-6: RXB
REGISTER 4-7: RXB
1999 Microchip Technology Inc.
bit 7-5: SID<2:0>: Standard Identifier Bits <2:0>
bit 4:
bit 3:
bit 2:
bit 1-0: EID<17:16>: Extended Identifier Bits <17:16>
bit 7-0: EID<15:8>: Extended Identifier Bits <15:8>
bit 7-0: EID<7:0>: Extended Identifier Bits <7:0>
bit 7
bit 7
bit 7
EID15
SID2
EID7
R-x
R-x
R-x
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 Recieved
IDE: Extended Identifier Flag
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'
These bits contain the two most significant bits of the Extended Identifier for the received message
These bits hold bits 15 through 8 of the Extended Identifier for the received message
These bits hold the least significant eight bits of the Extended Identifier for the received message
EID14
SID1
EID6
R-x
R-x
R-x
EID13
SID0
EID5
N
N
N
R-x
R-x
R-x
SIDL - Receive Buffer
EID8 - Receive Buffer
EID0 - Receive Buffer
EID12
EID4
SRR
R-x
R-x
R-x
EID11
EID3
IDE
R-x
R-x
R-x
N
N
N
Standard Identifier Low (ADDRESS: 62h, 72h)
Extended Identifier Mid (ADDRESS: 63h, 73h)
Extended Identifier Low (ADDRESS: 64h, 74h)
Preliminary
EID10
EID2
U-0
R-x
R-x
—
EID17
EID9
EID1
R-x
R-x
R-x
EID16
EID8
EID0
R-x
R-x
R-x
bit 0
bit 0
bit 0
R = Readable bit
W = Writable bit
C = Bit can be cleared by
U = Unimplemented -
- n = Value at POR reset
R = Readable bit
W = Writable bit
C = Bit can be cleared by
U = Unimplemented -
- n = Value at POR reset
R = Readable bit
W = Writable bit
C = Bit can be cleared by
U = Unimplemented -
- n = Value at POR reset
MCU but not set
reads as ‘0’
MCU but not set
reads as ‘0’
MCU but not set
reads as ‘0’
MCP2510
DS21291C-page 27