With two channels in the Z80—CTC, dual request interrupt operation mode can be implemented easily.
用Z80—CTC中的两个通道，可方便的实现双申请中断工作方式。
Under no circumstances should you interrupt an ongoing operation!
无论在何种情况下您都不能中断正在运行的操作！
To interrupt or change an operation while in process.
在处理过程中中断或改变某一操作。
To interrupt or change an operation while in process.
在处理过程中中断或改变某一操作。
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