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Chapter 19
CAN Controller (CAN)
Preliminary User’s Manual U17566EE1V2UM00
Figure 19-39
shows the processing for a transmit message buffer
(CnMCONFm.MT2 to CnMCONFm.MT0 bits = 000B)
Figure 19-39
Message transmit processing (normal operation mode with ABT)
Note
This processing (normal operation mode with ABT) can only be applied to
message buffers 0 to 7. For message buffers other than the ABT message
buffers, see
Figure 19-38 on page 749
.
Start
END
Clear RDY bit.
Set RDY
bit
= 0
Clear RDY
bit
= 1
ABTTRG
bit
= 0?
Yes
No
Set RDY bit.
Set RDY
bit
= 1
Clear RDY
bit
= 0
Set ABTTRG bit.
Set ABTTRG
bit
= 1
Clear ABTTRG
bit
= 0
RDY
bit
= 0?
No
Yes
Clear RTR bit of
CnMDATAxm register,
CnMDLCm register, and
CnMCONFm register.
Set CnMIDLm and
CnMIDHm registers.
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