UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 602

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

600
Caution While receiving a message from another node or transmitting the messages, there
Caution Set IE bit and RDY bit always separately.
Set TRQ
Set RDY
0
1
0
1
Other than above
Other than above
is a possibility of not to begin immediately the transmission even if the TRQ bit is
set to 1.
The transmission is not aborted even if the TRQ bit is cleared to 0. The
transmission is continued if a message is currently being transmitted and until the
transmission is completed (successfully or not).
Clear TRQ
Clear RDY
1
0
1
0
TRQ bit is cleared to 0.
TRQ bit is set to 1.
TRQ bit is not changed.
RDY bit is cleared to 0.
RDY bit is set to 1.
RDY bit is not changed.
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
Setting of TRQ Bit
Setting of RDY Bit