855
Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
Figure 18-50:
Reception via interrupt (using CnRGPT register)
Note:
Check the MUC and DN bits using one read access.
Remarks: 1.
Also check the MBON flag at the beginning and at the end of the interrupt routine, in
order to check the access to the message buffers as well as reception history list regis-
ters, in case a pending sleep mode had been executed. If MBON is detected to be
cleared at any check, the actions and results of the processing have to be discarded
and processed again, after MBON is set again.
It is recommended to cancel any sleep mode requests, before processing RX interrupts.
2.
If ROVF was set once, the receive history list is inconsistent. Consider to scan all config-
ured receive buffers for receptions.
START
Clear ROVF bit
No
ROVF = 1?
Read CnRGPT register
Yes
Generation of receive
completion interrupt
Clear DN bit
Read CnMDATAxm, CnMDLCm,
CnMIDLm, CnMIDHm registers
DN = 0
AND
MUC = 0
Note
RHPM = 1?
END
Yes
Yes
No
Correct data is read
Illegal data is read
No
START
Clear ROVF bit
No
ROVF = 1?
Read CnRGPT register
Yes
Generation of receive
completion interrupt
Clear DN bit
Read CnMDATAxm, CnMDLCm,
CnMIDLm, CnMIDHm registers
DN = 0
AND
MUC = 0
Note
DN = 0
AND
MUC = 0
Note
RHPM = 1?
END
Yes
Yes
No
Correct data is read
Illegal data is read
No
Содержание V850E/PH2
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Страница 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 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...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO...
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