UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 643

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

101B).
Notes 1. Confirm that a message is being received because RDY bit must be set after a message is completely
Figure 15-40 shows the processing for a receive message buffer (MT [2:0] bits of C0MCONFm register = 001B to
2. Avoid message buffer redefinition during store operation of message reception by waiting additional 4
received.
CAN data bits.
Figure 15-40. Message Buffer Redefinition
No
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
Wait for 4 CAN data bits
message buffers
Clear VALID bit
RSTAT = 0 or
VALID = 1?
Clear RDY bit
Set RDY bit
Yes
RDY = 1?
RDY = 0?
START
END
Set
Yes
Yes
Note 1
Note 2
No
No
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