upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 756
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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Chapter 19
756
Figure 19-45
Caution
Figure 19-45 shows the processing to not skip resumption of transmitting a
message that was stopped when transmission of an ABT message buffer was
aborted.
Transmission request abort processing (normal operation mode with
ABT)
1.
2.
Preliminary User’s Manual U17566EE1V2UM00
Do not set any transmission requests while ABT transmission abort
processing is in progress.
Make a CAN sleep mode/CAN stop mode request after the ABTTRG bit is
cleared following the procedure shown in Figure 19-44 or Figure 19-45.
When clearing a transmission request in an area other than the ABT area,
follow the procedure shown in Figure 19-43 on page 754.
Clear TRQ bit of message
Clear ABTTRG bit = 1
Clear ABTCLR bit = 0
Set ABTTRG bit = 0
Clear ABTTRG bit.
Set ABTCLR bit = 1
buffer undergoing
Transmission start
ABTTRG bit = 0?
Set ABTCLR bit.
Transmit abort
transmission.
pointer clear?
START
END
Yes
Yes
No
No
CAN Controller (CAN)
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