NEC V850ES/F 3-L Series User Manual page 648

Chapter 18
Figure 18-46
Caution
648
START START
Clear ABTTRG bit Clear ABTTRG bit
ABTTRG = 0? ABTTRG = 0?
Clear TRQ bit Clear TRQ bit
Wait for 11 CAN data bits Wait for 11 CAN data bits
TSTAT = 0? TSTAT = 0?
Read CnLOPT register Read CnLOPT register
Message buffer to Message buffer to
be aborted matches CnLOPT be aborted matches CnLOPT
register? register?
Transmission successful Transmission successful Transmission successful
Transmission abort processing except for ABT transmission (normal
operation mode with ABT)
1. Clear the TRQ bit for aborting transmission request, not the RDY bit.
2. Before making a sleep mode transition request, confirm that there is no
transmission request left using this processing.
3. The TSTAT bit can be periodically checked by a user application or can be
checked after the transmit completion interrupt.
4. Do not execute any new transmission request including in the other
message buffers while transmission abort processing is in progress.
User's Manual U18743EE1V2UM00
No No
Yes Yes
No No
Yes Yes
No No
Yes Yes
END END
CAN Controller (CAN)
Transmit abort request Transmit abort request Transmit abort request
was successful was successful was successful