842
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
Содержание MuPD70F3187
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Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
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Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
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