MCP2510 Microchip Technology, MCP2510 Datasheet - Page 24

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

MCP2510
REGISTER 4-1: RXB0CTRL - Receive Buffer 0 Control Register (ADDRESS: 60h)
DS21291C-page 24
bit 7:
bit 6-5: RXM<1:0>: Receive Buffer Operating Mode
bit 4:
bit 3:
bit 2:
bit 1:
bit 0:
bit 7
U-0
—
Unimplemented: Reads as ‘0’
11 = Turn mask/filters off; receive any message
10 = Receive only valid messages with extended identifiers that meet filter criteria
01 = Receive only valid messages with standard identifiers that meet filter criteria
00 = Receive all valid messages using either standard or extended identifiers that meet filter criteria
Unimplemented: Reads as ‘0’
RXRTR: Received Remote Transfer Request
1 = Remote Transfer Request Received
0 = No Remote Transfer Request Received
BUKT: Rollover Enable
1 = RXB0 message will rollover and be written to RXB1 if RXB0 is full
0 = Rollover disabled
BUKT1: Read Only Copy of BUKT Bit (used internally by the MCP2510).
FILHIT<0>: Filter Hit - indicates which acceptance filter enabled reception of message
1 = Acceptance Filter 1 (RXF1)
0 = Acceptance Filter 0 (RXF0)
Note: If a rollover from RXB0 to RXB1 occurs, the FILHIT bit will reflect the filter that accepted the mes-
sage that rolled over
R/W-0
RXM1
R/W-0
RXM0
U-0
—
RXRTR
R-0
Preliminary
R/W-0
BUKT
BUKT1 FILHIT0
R-0
R-0
bit 0
R = Readable bit
W = Writable bit
C = Bit can be cleared by
U = Unimplemented -
- n = Value at POR reset
1999 Microchip Technology Inc.
MCU but not set
reads as ‘0’