PIC18F2585_07 Datasheet, PDF (289/482 Pages) Microchip Technology – Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2585/2680/4585/4680
23.2.3 DEDICATED CAN RECEIVE
BUFFER REGISTERS
This section shows the dedicated CAN Receive Buffer
registers with their associated control registers.
REGISTER 23-13: RXB0CON: RECEIVE BUFFER 0 CONTROL REGISTER
R/C-0 R/W-0
Mode 0 _{RXFUL(1) RXM1}
R/W-0
RXM0
U-0
R-0
R/W-0
R-0
—
RXRTRRO RXB0DBEN JTOFF⁽²⁾
R-0
FILHIT0
R/C-0
Mode 1, 2 _RXFUL(1)
bit 7
R/W-0
RXM1
R-0
R-0
RTRRO FILHIT4
R-0
FILHIT3
R-0
FILHIT2
R-0
FILHIT1
R-0
FILHIT0
bit 0
bit 7
RXFUL: Receive Full Status bit⁽¹⁾
1 = Receive buffer contains a received message
0 = Receive buffer is open to receive a new message
bit 6
Mode 0:
RXM1: Receive Buffer Mode bit 1
Combines with RXM0 to form RXM<1:0> bits (see bit 5).
11 = Receive all messages (including those with errors); filter criteria is ignored
10 = Receive only valid messages with extended identifier; EXIDEN in RXFnSIDL must be ‘1’
01 = Receive only valid messages with standard identifier; EXIDEN in RXFnSIDL must be ‘0’
00 = Receive all valid messages as per EXIDEN bit in RXFnSIDL register
Mode 1, 2:
RXM1: Receive Buffer Mode bit 1
1 = Receive all messages (including those with errors); acceptance filters are ignored
0 = Receive all valid messages as per acceptance filters
bit 5
Mode 0:
RXM0: Receive Buffer Mode bit 0
Combines with RXM1 to form RXM<1:0> bits (see bit 6).
Mode 1, 2:
RTRRO: Remote Transmission Request bit for Received Message (read-only)
1 = A remote transmission request is received
0 = A remote transmission request is not received
bit 4
Mode 0:
Unimplemented: Read as ‘0’
Mode 1, 2:
FILHIT4: Filter Hit bit 4
This bit combines with other bits to form filter acceptance bits <4:0>.
bit 3
Mode 0:
RXRTRRO: Remote Transmission Request bit for Received Message (read-only)
1 = A remote transmission request is received
0 = A remote transmission request is not received
Mode 1, 2:
FILHIT3: Filter Hit bit 3
This bit combines with other bits to form filter acceptance bits <4:0>.
© 2007 Microchip Technology Inc.
Preliminary
DS39625C-page 287