PIC18F6585 Datasheet, PDF (311/496 Pages) Microchip Technology – 64/68/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with ECAN Module

PIC18F6585/8585/6680/8680
REGISTER 23-45: SDFLC: STANDARD DATA BYTES FILTER LENGTH COUNT REGISTER⁽¹⁾
U-0
U-0
U-0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—
—
—
FLC4
FLC3
FLC2
FLC1
FLC0
bit 7
bit 0
bit 7-5
bit 4-0
Unimplemented: Read as ‘0’
FLC4:FLC0: Filter Length Count bits
Mode 0:
Not used; forced to ‘00000’.
Mode 1, 2:
00000-10010 = 0 18 bits are available for standard data byte filter. Actual number of bits
used depends on DLC3:DLC0 bits (RXBnDLC<3:0> or BnDLC<3:0> if
configured as RX buffer) of message being received.
If DLC3:DLC0 = 0000 No bits will be compared with incoming data bits
If DLC3:DLC0 = 0001 Up to 8 data bits of RXFnEID<7:0>, as determined by FLC2:FLC0, will
be compared with the corresponding number of data bits of the
incoming message
If DLC3:DLC0 = 0010 Up to 16 data bits of RXFnEID<15:0>, as determined by FLC3:FLC0,
will be compared with the corresponding number of data bits of the
incoming message
If DLC3:DLC0 = 0011 Up to 18 data bits of RXFnEID<17:0>, as determined by FLC4:FLC0,
will be compared with the corresponding number of data bits of the
incoming message
Note 1: This register is available in Mode 1 and 2 only.
Legend:
R = Readable bit
- n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
REGISTER 23-46: RXFCONn: RECEIVE FILTER CONTROL REGISTER n [0 ≤ n ≤ 1]⁽¹⁾
RXFCON0
R/W-0
RXF7EN
R/W-0
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
RXF6EN RXF5EN RXF4EN RXF3EN RXF2EN RXF1EN
R/W-1
RXF0EN
RXFCON1
R/W-0
RXF15EN
bit 7
R/W-0
R/W-0 R/W-1 R/W-0 R/W-0 R/W-0
RXF14EN RXF13EN RXF12EN RXF11EN RXF10EN RXF9EN
R/W-0
RXF8EN
bit 0
bit 7-0
RXFnEN: Receive Filter n Enable bit
0 = Filter is disabled
1 = Filter is enabled
Note 1: This register is available in Mode 1 and 2 only.
Legend:
R = Readable bit
- n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
 2004 Microchip Technology Inc.
DS30491C-page 309