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R01UH0336EJ0102 Rev.1.02
Page 1143 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 20 CAN Controller (FCN)
20.14.2
Message Transmission
Figure 20-19, Message Transmit Processing,
shows the processing for a
transmit message buffer (FCNnMmSTRB.FCNnMmSSMT[3:0] = 0000
B
).
Figure 20-19
Message Transmit Processing
Caution 1.
FCNnMmCTL.FCNnMmRDYF must be set before setting
FCNnMmCTL.FCNnMmTRQF.
Caution 2. Do not set FCNnMmCTL.FCNnMmRDYF and FCNnMmCTL.FCNnMmTRQF
at the same time.
No
Yes
Yes
No
Remote frame
Data frame
START
END
Data frame or remote frame?
Set FCNnMmDATx register
Set FCNnMmDTLGB register
Clear FCNnMmSTRB.FCNnMmSSRT
Set FCNnMmMID0W register
Set FCNnMmDTLGB register
Set FCNnMmSTRB.FCNnMmSSRT
Set FCNnMmMID0W register
Set FCNnMmCTL.FCNnMmRDYF
Clear FCNnMmCTL.FCNnMmRDYF
FCNnMmCTL.
FCNnMmRDYF
= 0?
Set FCNnMmCTL.FCNnMmTRQF
FCNnMmCTL.
FCNnMmTRQF
= 0?
Содержание V850 Series
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