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Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
Figure 18-37:
Message buffer initialization
Caution
1. Before a message buffer is initialized, the RDY bit must be cleared.
2. Make the following settings for message buffers not used by the application.
• Clear the RDY, TRQ, and DN bits of the CnMCTRLm register to 0.
• Clear the MA0 bit of the CnMCONFm register to 0.
<~Reference>Figure 18-38 shows the processing for a receive message buffer (MT[2:0] bits of
CnMCONFm register = 001B to 101B).
START
Set
CnMCONFm register
END
RDY = 1?
No
Yes
Clear RDY bit
RDY = 0?
Set
CnMIDHm register,
CnMIDLm register
Transmit message buffer?
Clear
CnMDATAm register
Set
CnMCTRLm register
Set RDY bit
Set
CnMDLCm register
No
No
Yes
Yes
START
Set
CnMCONFm register
END
RDY = 1?
No
Yes
Clear RDY bit
RDY = 0?
Set
CnMIDHm register,
CnMIDLm register
Transmit message buffer?
Clear
CnMDATAm register
Set
CnMCTRLm register
Set RDY bit
Set
CnMDLCm register
No
No
Yes
Yes
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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