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PIC18F4685-I/SP Datasheet(PDF) 293 Page - Microchip Technology

Part # PIC18F4685-I/SP
Description  28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
PDF  484 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4685-I/SP Datasheet(HTML) 293 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
Preliminary
DS39761B-page 291
PIC18F2682/2685/4682/4685
bit 2-0
Mode 0:
FILHIT2:FILHIT0: Filter Hit bits
These bits indicate which acceptance filter enabled the last message reception into Receive Buffer 1.
111
= Reserved
110
= Reserved
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 possible when RXB0DBEN bit is set
000
= Acceptance Filter 0 (RXF0), only possible when RXB0DBEN bit is set
Mode 1, 2:
FILHIT2:FILHIT0 Filter Hit bits <2:0>
These bits, in combination with FILHIT<4:3>, indicate which acceptance filter enabled the message
reception into this receive buffer.
01111
= Acceptance Filter 15 (RXF15)
01110
= Acceptance Filter 14 (RXF14)
...
00000
= Acceptance Filter 0 (RXF0)
REGISTER 23-14: RXB1CON: RECEIVE BUFFER 1 CONTROL REGISTER (CONTINUED)
Note 1:
This bit is set by the CAN module upon receiving a message and must be cleared by software after the
buffer is read. As long as RXFUL is set, no new message will be loaded and buffer will be considered full.
REGISTER 23-15: RXBnSIDH: RECEIVE BUFFER n STANDARD IDENTIFIER REGISTERS,
HIGH BYTE [0
≤ n ≤ 1]
R-x
R-x
R-x
R-x
R-x
R-x
R-x
R-x
SID10
SID9
SID8
SID7
SID6
SID5
SID4
SID3
bit 7
bit 0
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
bit 7-0
SID10:SID3: Standard Identifier bits (if EXID (RXBnSIDL<3>) = 0)
Extended Identifier bits EID28:EID21 (if EXID = 1).



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