PIC18F6680-I/L Microchip Technology, PIC18F6680-I/L Datasheet - Page 299

• Manufacturer Part Number: PIC18F6680-I/L
• Description: Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
• Manufacturer: Microchip Technology

Specifications of PIC18F6680-I/L

• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3.25 KB
• Interface Type: I2C/SPI/AUSART/CAN
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 5
• Operating Supply Voltage: 4.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Package / Case: PLCC-68
• 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