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msp432p4011 处理器 P8.0脚设置IO中断

请问TI工程师:

    //下降沿中断
    //设置P8.0-DL_HX 为输入并置下拉
    MAP_GPIO_setAsInputPinWithPullDownResistor(GPIO_PORT_P8, GPIO_PIN0);
    //设置下降沿中断
    MAP_GPIO_interruptEdgeSelect(GPIO_PORT_P8, GPIO_PIN0,GPIO_LOW_TO_HIGH_TRANSITION);
    //清除中断
    MAP_GPIO_clearInterruptFlag(GPIO_PORT_P8, GPIO_PIN0);
    //使能中断
    MAP_GPIO_enableInterrupt(GPIO_PORT_P8, GPIO_PIN0);
    MAP_Interrupt_enableInterrupt(INT_PORT8);

为何上面最后1句  MAP_Interrupt_enableInterrupt(INT_PORT8);   

提示显示 INT_PORT8  没有

我查看Interrupt.h  文件  确实只有 INT_PORT1~INT_PORT6

是不是有问题啊?    数据手册应该显示  P8可以使用IO口中断吧  

着急请教