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