When this pin is not connected to anything.
当该引脚没有连接到任何东西。
Generally, this pin is grounded, but it can be tied to any voltage reference.
一般来说，这个引脚接地，但它可连接到任何电压参考。
Just connect a frequency counter to this pin, and it will display your bus frequency.
仅连接一个频率计数器到这个管脚，显示总线频率。
Never give this PIN number to anybody else.
不要告诉任何人您的密码。
GND: This pin is the combined control circuitry and power ground.
该引脚是综合控制电路和电源地。
GND: This pin is the combined control circuitry and power ground.
该引脚是综合控制电路和电源地。
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