PIC18F4680-H/P Microchip Technology, PIC18F4680-H/P Datasheet - Page 296
PIC18F4680-H/P
Manufacturer Part Number
PIC18F4680-H/P
Description
IC MCU 8BIT 64KB FLASH 44PDIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheet
1.PIC18F4585-IPT.pdf
(482 pages)
Specifications of PIC18F4680-H/P
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 150°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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PIC18F2585/2680/4585/4680
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
DS39625C-page 294
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 ≤ n ≤ 5, TXnEN (BSEL0<n>) = 0]
bit 7
Legend:
R = Readable bit
-n = Value at POR
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
RXRTRRO: Read-Only Remote Transmission Request for Received Message bit
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/W-0
Note 1: These registers are available in Mode 1 and 2 only.
(2)
2: 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 the buffer will be considered full.
R/W-0
RXM1
RXRTRRO
W = Writable bit
‘1’ = Bit is set
R-0
Preliminary
(2)
FILHIT4
R-0
(1)
FILHIT3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R-0
FILHIT2
R-0
© 2007 Microchip Technology Inc.
x = Bit is unknown
FILHIT1
R-0
FILHIT0
R-0
bit 0
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