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TMS320F2809: 请问f2809的FIFO与普通的SCI的差别在哪?优势和劣势分别是什么?

Part Number: TMS320F2809

个人理解:FIFO感觉是多了缓冲功能,对于CPU资源的占用应该会少些,但是又有个深度的限制。

不知道以上的理解是否正确?因此请问f2809的FIFO与普通的SCI的差别在哪?优势和劣势分别是什么?