PCM18XK1 Microchip Technology, PCM18XK1 Datasheet - Page 299

• Manufacturer Part Number: PCM18XK1
• Description: MODULE PROC PIC18F8680,6680,8565
• Manufacturer: Microchip Technology

Specifications of PCM18XK1

• Accessory Type: Processor Module
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: ICE2000
• For Use With: ICE2000 - EMULATOR MPLAB-ICE 2000 POD
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

23.2.3.1
The ECAN module contains 6 message buffers that can
be programmed as transmit or receive buffers. Any of
these buffers can also be programmed to automatically
handle RTR messages.
REGISTER 23-22: BnCON: TX/RX BUFFER n CONTROL REGISTERS IN RECEIVE MODE
 2004 Microchip Technology Inc.
Note:
bit 7
bit 6
bit 5
bit 4-0
These registers are not used in Mode 0.
Programmable TX/RX and
Auto RTR Buffers
[0
bit 7
Legend:
C = Clearable bit
‘1’ = Bit is set
RXFUL: Receive Full Status bit
1 = Receive buffer contains a received message
0 = Receive buffer is open to receive a new message
RXM1: Receive Buffer Mode bit
1 = Receive all messages including partial and invalid (acceptance filters are ignored)
0 = Receive all valid messages as per acceptance filters
RTRRO: Read-Only Remote Transmission Request bit for Received Message
1 = Received message is a remote transmission request
0 = Received message is not a remote transmission request
FILHIT4:FILHIT0: Filter Hit bits
These bits indicate which acceptance filter enabled the last message reception into this buffer.
01111 = Acceptance Filter 15 (RXF15)
01110 = Acceptance Filter 14 (RXF14)
...
00001 = Acceptance Filter 1 (RXF1)
00000 = Acceptance Filter 0 (RXF0)
RXFUL
R/C-0
Note:
Note 1: These registers are available in Mode 1 and 2 only.
n
5, TXnEN (BSEL0<n>) = 0]
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.
R/W-0
RXM1
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
R = Readable bit
PIC18F6585/8585/6680/8680
RTRRO
R-0
(1)
FILHIT4
R-0
W = Writable bit
(1)
FILHIT3
R-0
x = Bit is unknown
- n = Value at POR
FILHIT2
R-0
FILHIT1
R-0
DS30491C-page 297
FILHIT0
R-0
bit 0