首先一个概念是:非复用?为什么叫它非复用?这个xintf接口明明是GPIO口的第三功能外设,是通过GPIO复用过来的?
另一个概念是异步总线,而且这个xintf是并口,这个异步是怎么得来的?
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首先一个概念是:非复用?为什么叫它非复用?这个xintf接口明明是GPIO口的第三功能外设,是通过GPIO复用过来的?
另一个概念是异步总线,而且这个xintf是并口,这个异步是怎么得来的?