PCM18XT0 Microchip Technology, PCM18XT0 Datasheet - Page 342

• Manufacturer Part Number: PCM18XT0
• Description: MODULE PROC PIC18F4685
• Manufacturer: Microchip Technology

Specifications of PCM18XT0

• Accessory Type: Processor Module
• Product: Microcontroller Modules
• Core Processor: PIC18F4685
• 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, Not applicable / Not applicable

COMSTAT. In Mode 1 and 2, there are two interrupt
PIC18F2682/2685/4682/4685
FIGURE 23-8:
23.15 CAN Interrupts
The module has several sources of interrupts. Each of
these interrupts can be individually enabled or
disabled. The PIR3 register contains interrupt flags.
The PIE3 register contains the enables for the 8 main
interrupts. A special set of read-only bits in the
CANSTAT register, the ICODE bits, can be used in
combination with a jump table for efficient handling of
interrupts.
All interrupts have one source, with the exception of the
error interrupt and buffer interrupts in Mode 1 and 2. Any
of the error interrupt sources can set the error interrupt
flag. The source of the error interrupt can be determined
by
enable/disable and flag bits – one for all transmit buffers
and the other for all receive buffers.
DS39761C-page 342
reading
the
Communication
ERROR MODES STATE DIAGRAM
RXERRCNT < 127 or
TXERRCNT < 127
Passive
Error
Status
-
register,
TXERRCNT > 255
RXERRCNT > 127 or
TXERRCNT > 127
Active
Error
The interrupts can be broken up into two categories:
receive and transmit interrupts.
The receive related interrupts are:
• Receive Interrupts
• Wake-up Interrupt
• Receiver Overrun Interrupt
• Receiver Warning Interrupt
• Receiver Error-Passive Interrupt
The transmit related interrupts are:
• Transmit Interrupts
• Transmitter Warning Interrupt
• Transmitter Error-Passive Interrupt
• Bus-Off Interrupt
-
Bus-
Off
Reset
128 occurrences of
11 consecutive
“recessive” bits
© 2009 Microchip Technology Inc.