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interrupt-PTH_PTH0
- MC9SXS128里面有128个中断，其中PORTH口就可以用成外部中断输入脚，里面有教你引脚初始化 ，教你写中断程序，新手比较容易上手的，-MC9SXS128 there are 128 interrupt, the PORTH port can be used as external interrupt input pin, pin initialization inside teach you, teach you to write interrupt program, easy to u