CYPD3171 QC不起作用

嗨，Alin，
在美国港，来自主机的VBUS连接vbus_us指示连接/断开状态的枢纽。
当VBUS断开（假设美国被断开）、HX3枢纽将暂停1.2V和3.3V的连接。
其中USB3.0线连接和断开你的VBUS的情况是怎样的？它是嵌入式应用程序吗？
请提供更多细节。
问候，阿尼尔



以下为原文
Hi Alin,

The VBUS on the US port which is coming from the Host is connected to VBUS_US to indicate the connect/disconnect status to the Hub.
When the VBUS is disconnected (assuming US is disconnected), HX3 Hub will be in suspend with 1.2V and 3.3V connected.
What is the scenario in which the USB3.0 lines are connected and VBUS is disconnected in your case? Is it an embedded application?
Please provide more details.

Regards,
Anil

我计划把一个开关的VBUS线和关闭它在某些情况下。那情景当VBUS不存在和USB线。
我也有一个新问题。如果VBUS和USB线可发生了什么，但1.2V和3.3V的不是吗？
谢谢您。
阿林



以下为原文
I plan on putting a switch on the VBUS line and turn it off during certain scenarios. That's the scenario when VBUS is not present and the USB lines are.

I have a new question too. What happens if VBUS and the USB lines are available, but the 1.2V and the 3.3V are not?

Thank you.
Alin

嗨，Alin，
在断开VBUS时不会有任何问题，而其余的USB线路在上游连接，而1.2V和3.3V的集线器供电。
由于集线器IC核心没有1.2V和3.3V供电，VBUS和USB线路的连接与未供电状态相比没有任何差别。
问候，阿尼尔



以下为原文
Hi Alin,

There will be no issue in disconnecting the VBUS while the rest of the USB lines are connected on the upstream, with 1.2V and 3.3V supplies of Hub are powered.

Since the Hub IC core is not powered with 1.2V and 3.3V, connection of VBUS and USB lines doesn't make any difference compared to un-powered state.

Regards,
Anil

阿尼尔
谢谢你的回复。
VBUS是只中断线吗？有没有动力？数据表不指示任何…



以下为原文
Anil,

Thanks for the response.
Is VBUS an interrupt only line? Is there any power drawn from it? Datasheet does not indicate any...

Alin
是的，VBuSuSUS引脚是一个只中断线，它不会画任何电源。
问候，阿尼尔



以下为原文
Alin,

Yes, the VBUS_US pin is an interrupt only line and it will not draw any power.

Regards,
Anil