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8XC196K x , J x , CA USER'S MANUAL
No
TX_REQ= 1?
CPUUPD= 0?
NEWDAT := 0
Load message
into buffer
Send message
No
Transmission
successful?
NEWDAT = 1?
No
TXIE = 1?
INT_PND := 1
Figure 12-26. Transmitting a Message — CAN Controller Flow
12-40
Bus free?
Yes
Yes
Yes
No
TX_REQ := 0
RMTPND := 0
Yes
Yes
No
Received remote frame
with same identifer as
this message object?
Yes
TX_REQ := 1
RMTPND := 1
?
RXIE = 1
Yes
INT_PND := 1
No
No
A2595-02
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