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87C196CB SUPPLEMENT
7-40
Figure 7-26. Transmitting a Message — CAN Controller Flow
NEWDAT := 0
Load message
into buffer
Send message
Transmission
successful?
NEWDAT = 1?
TXIE = 1?
INT_PND := 1
TX_REQ := 0
RMTPND := 0
TX_REQ= 1?
CPUUPD= 0?
Bus free?
Received remote frame
with same identifer as
this message object?
TX_REQ := 1
RMTPND := 1
RXIE = 1
?
INT_PND := 1
A2595-02
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No