upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 762

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 19
762
Figure 19-51
Bus-Off recovery
Preliminary User’s Manual U17566EE1V2UM00
No
Access to register other
Set CnCTRL register.
CnGMCTRL registers.
Set CnCTRL register.
Clear CCERC bit = 0
(clear OPMODE bit)
(set OPMODE bit)
Set CCERC bit = 1
than CnCTRL and
Forced recovery
Set CCERC bit.
BOFF bit = 1?
from bus off?
INIT mode ?
MUC = 0
DN = 0
START
AND
END
Yes
Yes
Yes
No
No
Set CnCTRL register.
(Set OPMODE bit)
Wait for recovery
from bus off.
CAN Controller (CAN)