当键盘或者鼠标想发送数据时，它首先必须检查时钟线，确认它处于高电平。

When the keyboard or mouse wants to send information, it first checks the Clock line to make sure it's at a high logic level.

youdao

当键盘或者鼠标想发送数据时，它首先必须检查时钟线，确认它处于高电平。

When the keyboard or mouse wants to send information, it first checks the Clock line to make sure it's at a high logic level.

youdao