upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 754

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 19
754
Figure 19-43
Caution
Transmission abort processing (normal operation mode)
1.
2.
3.
Preliminary User’s Manual U17566EE1V2UM00
Execute transmission request abort processing by clearing the TRQ bit, not
the RDY bit.
Before making a sleep mode transition request, confirm that there is no
transmission request left using this processing.
The TSTAT bit can be periodically checked by a user application.
Wait for 11 CAN data bits.
Transmission successful
Read CnLOPT register.
be aborted matches
Clear TRQ bit = 1
Message buffer to
CnLOPT register?
Set TRQ bit = 0
Clear TRQ bit.
TSTAT bit = 0?
START
END
Yes
Yes
No
No
Transmit abort request
was successful.
CAN Controller (CAN)