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87C196CB SUPPLEMENT
7-38
Figure 7-24. Receiving a Message — CAN Controller Flow
NEWDAT := 0
Load identifer and
control into buffer
Send remote frame
Transmission
successful?
TXIE = 1?
INT_PND := 1
TX_REQ := 0
RMTPND:= 0
TX_REQ=1?
MSGLST=0?
Bus idle?
Received frame with
same identifer as this
message object?
RXIE = 1?
INT_PND := 1
A2598-01
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
NEWDAT = 1?
Store message
NEWDAT := 1
TX_REQ := 0
RMTPND := 0
MSGLST := 1