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3100uart spi 接口

Other Parts Discussed in Thread: CC3100

如题,我在文档中看到spi接mcu时用到了六根线,一个中断和一个指向3100的nHib,然后uart接mcu最多用了五根,多了一根指向mcu的IRQ,请问IRQ和nHIB是独立工作的吗?还是一定要 分 别 配合uart和spi使用呢?求详细解答,例如我的uart可以再用nHIB给3100吗?spi可否使用IRQ。?