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Chapter 16
FCAN Controller
User’s Manual U16702EE3V2UD00
Figure 16-63 shows the processing for a transmit message buffer (MT[2:0] bits of CnMCONFm
register = 000B).
Figure 16-63:
Message Transmit Processing (Normal Operation Mode with ABT)
Remark:
This processing (normal operation mode with ABT) can only be applied to message buffers
0 to 7.
For message buffers other than the ABT message buffers, refer to
Figure 16-61
.
Caution:
Set (1) ABTTRG bit after TSTAT bit is clear (0) check TSTAT bit and set ABTTRG bit,
must be processing successively.
START
Set CnMDATAxm register
Set CnMDLCm register
Clear RTR bit of CnMCONFm
register
Set CnMIDLm and CnMIDHm
registers
END
ABTTRG = 0?
No
Yes
Clear RDY bit
CnMCTRLm.SET_RDY = 0
CnMCTRLm.CLEAR_RDY = 1
RDY = 0?
Set RDY bit
CnMCTRLm.SET_RDY = 1
CnMCTRLm.CLEAR_RDY = 0
No
Set ABTTRG bit
CnGMABT.SET_ABTTRG = 1
CnGMABT.CLEAR_ABTTRG = 0
Set all ABT transmit messages?
TSTAT = 0?
Yes
No
No
r
t
it
.
.
T
Y
t
l
T
Yes
Yes
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