850
Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
Figure 18-45:
Transmission abort processing (Except Normal Operation Mode with ABT)
Note:
There is a possibility of starting the transmission without being aborted even if TRQ bit is
cleared, because the transmission request to protocol layer might already been accepted
between 11 bits, total of interframe space (3 bits) and suspend transmission (8 bits).
Cautions: 1. Clear the TRQ bit for aborting transmission request, not the RDY bit.
2. Before making a sleep mode transition request, confirm that there is no transmis-
sion request left using this processing.
3. The TSTAT bit can be periodically checked by a user application or can be
checked after the transmit completion interrupt.
4. Do not execute any new transmission request including in the other message
buffers while transmission abort processing is in progress.
Figure 18-46:
Transmission Abort Processing Except for ABT Transmission (Normal Operation
Mode with ABT)
START
Read CnLOPT register
END
No
Yes
Clear TRQ bit
TSTAT = 0?
Message buffer to
be aborted matches CnLOPT
register?
No
Wait for 11 CAN data bits
Note
Transmission successful
Transmit abort request
was successful
Yes
START
Read CnLOPT register
END
No
Yes
Clear TRQ bit
TSTAT = 0?
Message buffer to
be aborted matches CnLOPT
register?
No
Wait for 11 CAN data bits
Note
Transmission successful
Transmission successful
Transmit abort request
was successful
Transmit abort request
was successful
Yes
Summary of Contents for V850E/PH2
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 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 only 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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