Datasheet

© 2007 Microchip Technology Inc. DS21291F-page 25
MCP2510
REGISTER 4-2: RXB1CTRL - RECEIVE BUFFER 1 CONTROL REGISTER
(ADDRESS: 70h)
U-0 R/W-0 R/W-0 U-0 R-0 R-0 R-0 R-0
RXM1 RXM0 RXRTR FILHIT2 FILHIT1 FILHIT0
bit 7 bit 0
bit 7 Unimplemented: Read as '0'
bit 6-5 RXM<1:0>: Receive Buffer Operating Mode
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
bit 4 Unimplemented: Read as '0'
bit 3 RXRTR: Received Remote Transfer Request
1 = Remote Transfer Request Received
0 = No Remote Transfer Request Received
bit 2-0 FILHIT<2:0>: Filter Hit - 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 = Acceptance Filter 0 (RXF0) (Only if BUKT bit set in RXB0CTRL)
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ’1’ = Bit is set ’0’ = Bit is cleared x = Bit is unknown