UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 572

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

570
(b) Write
Caution While receiving a message from another node or transmitting the messages other
Set ABTTRG
Set ABTCLR
0
1
0
1
Other than above
than the ABT messages (message buffer 8 to 15), there is a possibility not to
begin immediately the transmission even if the ABTTRG bit is set to 1.
Transmission is not aborted even if the ABTTRG bit is cleared to 0, until the
transmission of the ABT message, which is currently being transmitted is
completed (successfully or not). After that, the transmission is aborted.
The automatic block transmission engine is in idle state or under operation.
Request to clear the automatic block transmission engine. After the automatic block
transmission engine has been cleared, automatic block transmission is started from
message buffer 0 by setting the ABTTRG bit to 1.
ABTTRG
Clear
1
0
Automatic Block Transmission Engine Clear Request Bit
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
Request to stop automatic block transmission.
Request to start automatic block transmission.
No change in ABTTRG bit.
Automatic Block Transmission Start Bit