NEC V850ES/F 3-L Series User Manual page 646

Chapter 18
Set CnMDATAxm register Set CnMDATAxm register
Set CnMDLCm register Set CnMDLCm register
Clear RTR bit of CnMCONFm Clear RTR bit of CnMCONFm
register. register.
Set CnMIDLm and CnMIDHm Set CnMIDLm and CnMIDHm
registers registers
Figure 18-44
Caution
646
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
TX interrupts.
2. If TOVF was set once, the transmit history list is inconsistent. Consider to
scan all configured transmit buffers for completed transmissions.
CINTS0 = 1? CINTS0 = 1?
Yes Yes
Clear CINTS0 bit Clear CINTS0 bit
Read CnTGPT register Read CnTGPT register
No No
TOVF = 1? TOVF = 1?
Clear TOVF bit Clear TOVF bit
Clear RDY bit Clear RDY bit
RDY = 0? RDY = 0?
Data frame Data frame
Data frame or Data frame or
remote frame? remote frame?
Set RDY bit Set RDY bit
Set TRQ bit Set TRQ bit
THPM = 1? THPM = 1?
Transmission via software polling
1. The TRQ bit should be set after the RDY bit is set.
2. The RDY bit and TRQ bit should not be set at the same time.
User's Manual U18743EE1V2UM00
START START
No No
Yes Yes
No No
Yes Yes
Remote frame Remote frame
Set CnMDLCm register Set CnMDLCm register
Set RTR bit of CnMCONFm Set RTR bit of CnMCONFm
Set CnMIDLm and CnMIDHm Set CnMIDLm and CnMIDHm
registers registers
No No
Yes Yes
END END
CAN Controller (CAN)