UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 644

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

C0MCONFm register = 000B).
642
Figure 15-41 shows the processing for a transmit message buffer during transmission (MT [2:0] bits of
Set C0MDATAxm register
Set C0MDLCm register
Clear RTR bit of C0MCONFm
register
Set C0MIDLm and C0MIDHm
registers
Figure 15-41. Message Buffer Redefinition during Transmission
Data frame
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
Data frame or remote frame?
Wait for 1CAN data bits
Transmit abort process
Clear RDY bit
Set RDY bit
Set TRQ bit
Transmit?
RDY = 0?
END
START
Yes
Yes
No
No
Remote frame
Set C0MDLCm register
Set RTR bit of C0MCONFm
register
Set C0MIDLm and C0MIDHm
registers