MCP2515
REGISTER 4-2:
RXB1CTRL – RECEIVE BUFFER 1 CONTROL
(ADDRESS: 70h)
U-0
R/W-0
RXM1
R/W-0
RXM0
U-0
R-0
RXRTR
R-0
FILHIT2
R-0
FILHIT1
R-0
FILHIT0
bit 7
Legend:
bit 0
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
bit 7
bit 6-5
bit 4
bit 3
bit 2-0
Unimplemented: Read as ‘ 0 ’
RXM<1:0>: 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<2:0>: 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 =
DS21801G-page 28
Acceptance Filter 0 (RXF0) (Only if BUKT bit set in RXB0CTRL)
? 2003-2012 Microchip Technology Inc.
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相关代理商/技术参数
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