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Chapter 19
CAN Controller (CAN)
Preliminary User’s Manual U17566EE1V2UM00
Figure 19-51
Bus-Off recovery
START
DN = 0
AND
MUC = 0
No
BOFF bit = 1?
No
Yes
Set CCERC bit.
Set CCERC bit = 1
Clear CCERC bit = 0
INIT mode ?
END
Yes
No
Yes
Set CnCTRL register.
(clear OPMODE bit)
Access to register other
than CnCTRL and
CnGMCTRL registers.
Forced recovery
from bus off?
Set CnCTRL register.
(set OPMODE bit)
Set CnCTRL register.
(Set OPMODE bit)
Wait for recovery
from bus off.
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