Most IO channel types now have asynchronous versions.

大多数的IO通道类型现在都拥有了异步版本。

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This paper proposes a method of intelligent time-control switch design, which USES the SCM timer, IO interface, interrupt system, and other resources to control the multi-channel switch.

本文提出了一种智能时控开关的设计方法，该智能时控开关利用单片机中的定时器、IO接口、中断系统等资源，能根据时刻信息对多路开关进行控制。

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