UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 653

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

transmission of an ABT message buffer was aborted.
Figure 15-49 shows the processing not to skip resumption of transmitting a message that was stopped when
Cautions 1. Do not set any transmission requests while ABT transmission abort processing is in
Figure 15-49. ABT Transmission Abort Processing (Normal Operation Mode with ABT)
2. Make a CAN sleep mode/CAN stop mode transition request after ABTTRG bit is
progress.
cleared (after ABT mode is aborted) following the procedure shown in Figure 15-49
or 15-50. When clearing a transmission request in an area other than the ABT area,
follow the procedure shown in Figure 15-47. Transmission Abort Processing (Except
Normal Operation Mode with ABT).
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
Clear TRQ bit of message
buffer whose transmission
was aborted
Clear ABTTRG bit
Transmission start
Set ABTCLR bit
ABTTRG = 0?
Transmit abort
TSTAT = 0?
START
END
Yes
Yes
Yes
No
No
No
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