MCP2510-EP Microchip Technology, MCP2510-EP Datasheet - Page 20

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

MCP2510
REGISTER 3-7: TXB
REGISTER 3-8: TXB
DS21291C-page 20
TXB
bit 7:
bit 6:
bit 5-4: Unimplemented: Reads as ‘0’
bit 3-0: DLC<3:0>: Data Length Code
bit 7-0: TXB
bit 7
bit 7
R/W-x
R/W-x
—
N
Dm7 TXB
Unimplemented: Reads as ‘0’
RTR: Remote Transmission Request Bit
1 = Transmitted Message will be a Remote Transmit Request
0 = Transmitted Message will be a Data Frame
Sets the number of data bytes to be transmitted (0 to 8 bytes)
NOTE: It is possible to set the DLC to a value greater than 8, however only 8 bytes are transmitted
R/W-x
RTR
R/W-x
N
N
D
Dm6 TXB
M
7:TXB
R/W-x
N
N
DLC - Transmit Buffer
D
—
M
R/W-x
N
- Transmit Buffer
N
D
Dm5 TXB
M
0: Transmit Buffer
R/W-x
—
R/W-x
N
Dm4 TXB
R/W-x
DLC3
N
N
Data Field Byte m (ADDRESS: 36h-3Dh, 46h-4Dh, 56h-5Dh)
R/W-x
Data Length Code (ADDRESS: 35h, 45h, 55h)
N
N
Preliminary
R/W-x
Dm3 TXB
DLC2
Data Field Byte m
R/W-x
R/W-x
DLC1
N
Dm2 TXB
bit 0
R/W-x
R/W-x
DLC0
N
Dm1 TXB
R/W-x
R = Readable bit
W = Writable bit
C = Bit can be cleared by
U = Unimplemented -
- n = Value at POR reset
N
Dm0
bit 0
MCU but not set
reads as ‘0’
1999 Microchip Technology Inc.
R = Readable bit
W = Writable bit
C = Bit can be cleared
U = Unimplemented
- n = Value at POR
by
MCU but not set
- reads as ‘0’
reset