PIC18F248-E/L MICROCHIP [Microchip Technology], PIC18F248-E/L Datasheet - Page 213

• Manufacturer Part Number: PIC18F248-E/L
• Description: 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 19-13: RXB1CON: RECEIVE BUFFER 1 CONTROL REGISTER
© 2006 Microchip Technology Inc.
bit 7
bit 6-5
bit 4
bit 3
bit 2-0
bit 7
RXFUL: Receive Full Status bit
1 = Receive buffer contains a received message
0 = Receive buffer is open to receive a new message
RXM1:RXM0: Receive Buffer Mode bits
11 = Receive all messages (including those with errors)
10 = Receive only valid messages with extended identifier
01 = Receive only valid messages with standard identifier
00 = Receive all valid messages
Unimplemented: Read as ‘0’
RXRTRRO: Receive Remote Transfer Request bit (read-only)
1 = Remote transfer request
0 = No remote transfer request
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
Legend:
R = Readable bit
-n = Value at POR
RXFUL
R/C-0
Note:
Note 1: Bits RXFUL, RXM1 and RXM0 of RXB1CON are not mirrored in RXB0CON.
(1)
This bit is set by the CAN module and should be cleared by software after the buffer
is read.
RXM1
R/W-0
(1)
W = Writable bit
‘1’ = Bit is set
RXM0
R/W-0
(1)
(1)
U-0
C = Clearable bit
‘0’ = Bit is cleared
—
(1)
RXRTRRO
R-0
U = Unimplemented bit, read as ‘0’
x = Bit is unknown
FILHIT2
R-0
PIC18FXX8
FILHIT1
R-0
DS41159E-page 211
FILHIT0
R-0
bit 0