Microchip Technology dsPIC33 series User Manual

dsPIC33/PIC24 Family Reference Manual
DS70005340A-page 52  2018 Microchip Technology Inc.
Figure 4-1: CAN FD Modes of Operation
REQOPx = Restricted
and Bus Idle
No
Yes
REQOPx =
“Normal”
REQOP=Listen Only
And Bus Idle
REQOPx = Config
(and Bus Idle)
REQOP=Restricted
And Bus Idle
Recessive bit = 1
Received and PXEDIS = 0
Wait for
Bus Idle
Wait for
128 Idle Conditions
TXBO
System Error
REQOPx = “Normal”
REQOPx = Config
(and Bus Idle)
REQOPx = Listen Only
and Bus Idle
REQOPx = Config
and Bus Idle
REQOPx = Loopback Int/Ext
and Bus Idle (Integrating)
WAKIF or OSCDIS = 0
REQOPx = Sleep
and Bus Idle
REQOPx = Config
and Bus Idle
REQOPx = “Normal”
and Bus Idle
(Integrating)
POR
Configuration
Mode
Sleep Mode
Clock Off
CxTX Recessive
“Normal”
Modes
RX and TX
Loopback
Modes
Listen Only
Mode
RX Only
TX Pin High
TXREQ Ignored
Bus Off
Clear All TXREQx
bits (Reset TX
FIFOs/TXQ)
Protocol
Exception Event
No TX
Restricted Operation
Mode
RX
TX: Only ACK,
TXREQx Ignored
c
SERRLOM = 1?
Normal FD
Mode
Normal 2.0
Mode
External/Internal
Loopback
Mode
Listen Only
Mode
“Normal” Modes “Debug” Modes
Restricted
Operation
Mode

Microchip Technology dsPIC33 series Specifications

General

Brand	Microchip Technology
Model	dsPIC33 series
Category	Motherboard
Language	English