NEC V850E/Dx3 Preliminary User's Manual page 759

CAN Controller (CAN)
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Start
CINTS1 bit = 1?
Yes
Clear CINTS1 bit.
Clear CINTS1 bit = 1
Read CnRGPT register.
ROVF bit = 1?
Yes
Clear ROVF bit.
Clear ROVF bit = 1
Clear DN bit.
Clear DN bit = 1
Read CnMDATAxm,
CnMDLCm,
CnMIDLm, and
CnMIDHm registers.
Figure 19-48 Reception via software polling
Note Check the MUC and DN bits using one read access.
Preliminary User's Manual U17566EE1V2UM00
No
No
DN bit = 0
MUC bit = 0
RHPM bit = 1?
END
Chapter 19
and
Note No
Yes
No
Yes
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