NEC V850ES/F 3-L Series User Manual page 649

CAN Controller (CAN)
Figure 18-47
Caution
Figure 18-47 shows the processing to skip resumption of transmitting a
message that was stopped when transmission of an ABT message buffer was
aborted.
Transmission abort processing (normal operation mode with ABT)
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 (after ABT mode is aborted) following the procedure
shown in Figure 18-47 or Figure 18-48. When clearing a transmission
request in an area other than the ABT area, follow the procedure shown in
Figure 18-45 on page 647.
User's Manual U18743EE1V2UM00
START START
TSTAT = 0? TSTAT = 0?
Yes Yes
Clear ABTTRG bit Clear ABTTRG bit
ABTTRG = 0? ABTTRG = 0?
Yes Yes
Clear TRQ bit of message Clear TRQ bit of message
buffer whose transmission buffer whose transmission
was aborted was aborted
Transmit abort Transmit abort Transmit abort
Transmission start Transmission start
Yes Yes
Set ABTCLR bit Set ABTCLR bit
END END
Chapter 18
No No
No No
No No
649