MCP2515-E/PRB2 Microchip Technology, MCP2515-E/PRB2 Datasheet - Page 28

• Manufacturer Part Number: MCP2515-E/PRB2
• Description: CAN controller with SPI interface, 125 deg C, -40C to +125C, 18-PDIP, TUBE
• Manufacturer: Microchip Technology

MCP2515
REGISTER 4-2:
DS21801E-page 28
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6-5
bit 4
bit 3
bit 2-0
U-0
—
Unimplemented: Read as ‘0’
RXM: Receive Buffer Operating Mode bits
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: Read as ‘0’
RXRTR: Received Remote Transfer Request bit
1 = Remote Transfer Request Received
0 = No Remote Transfer Request Received
FILHIT: Filter Hit bits - indicates which acceptance filter enabled reception of message
101 = Acceptance Filter 5 (RXF5)
100 = Acceptance Filter 4 (RXF4)
011 = Acceptance Filter 3 (RXF3)
010 = Acceptance Filter 2 (RXF2)
001 = Acceptance Filter 1 (RXF1) (Only if BUKT bit set in RXB0CTRL)
000 =
R/W-0
RXM1
RXB1CTRL – RECEIVE BUFFER 1 CONTROL
(ADDRESS: 70h)
Acceptance Filter 0 (RXF0) (Only if BUKT bit set in RXB0CTRL)
W = Writable bit
‘1’ = Bit is set
R/W-0
RXM0
U-0
—
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
RXRTR
R-0
FILHIT2
R-0
© 2007 Microchip Technology Inc.
x = Bit is unknown
FILHIT1
R-0
FILHIT0
R-0
bit 0