755
CAN Controller (CAN)
Chapter 19
Preliminary User’s Manual U17566EE1V2UM00
Figure 19-44
shows the processing to skip resumption of transmitting a
message that was stopped when transmission of an ABT message buffer was
aborted.
Figure 19-44
Transmission abort processing (normal operation mode with ABT)
Caution
1.
Do not set any transmission requests while ABT transmission abort
processing is in progress.
2.
Make a CAN sleep mode/CAN stop mode transition request after the
ABTTRG bit is cleared following the procedure shown in
Figure 19-44
or
Figure 19-45
. When clearing a transmission request in an area other than
the ABT area, follow the procedure shown in
Figure 19-43 on page 754
.
END
ABTTRG bit = 0?
Yes
No
START
No
Yes
Clear ABTTRG bit.
Set ABTTRG bit = 0
Clear ABTTRG bit = 1
Set ABTCLR bit.
Set ABTCLR bit = 1
Clear ABTCLR bit = 0
Clear TRQ bit of message
buffer whose transmission
was aborted.
Transmit abort
Transmission start
pointer clear?
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