I am working with MC13213 and try to get some message to send, but when I check the message through sniffer I found they were incorrect. There were others mixed in them and after a while MC13213 would not send any more.I have tried checking my program under debug model, oddly it works well. I really have no idea about that and wonder why. I also want to ask where can I find more detailed information about MC13213 and its SCI register stuff. It seems that its datasheet which I download from the web is not useful enough.