upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 672

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Figure 16-69 shows the processing to skip resumption of transmitting a message that was stopped
when transmission of an ABT message buffer was aborted.
Cautions: 1. Do not set any transmission requests while ABT transmission abort processing
672
Figure 16-69: Transmission Abort Processing (Normal Operation Mode with ABT)
2. Make a CAN sleep mode/CAN stop mode transition request after ABTTRG is
is in progress.
cleared following the procedure shown in Figure 16-69 or Figure 16-70. When
clearing a transmission request in an area other than the ABT area, follow the
procedure shown in Figure 16-67.
Chapter 16 FCAN Controller
User’s Manual U16702EE3V2UD00
Clear TRQ bit of message
buffer whose transmission
was aborted.
Clear ABTTRG bit = 1
Clear ABTTRG bit = 0
Set ABTTRG bit = 0
Set ABTCLR bit = 1
Clear ABTTRG bit.
Transmission start
Set ABTCLR bit.
Transmit abort
ABTTRG = 0?
pointer clear?
START
END
Yes
Yes
No
No