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USB hosts hubs transceivers Forum Discussions

Anonymous
Not applicable

hi all

   

i am using cy7c65215 in design

   

but cannot find any new hardware in windows7

   

Attachments is my sch

   

i found some info in FAQ page:

   

Q5. Can the WAKEUP pin on USB-Serial device be left floating?
Ans: No, the WAKEUP pin cannot be left floating since it is an input pin. The default polarity of WAKEUP pin is Active Low. So this pin should be pulled high to VDDD (or VCCIO) domain.

   

 

   

Does wakeup pin cause the problem?

   

P.S. the VCCD already output 1.8v

   

Thanks

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1 Reply
Anonymous
Not applicable

Hi,

   

Yes. You can leave that open. There will be no issues.

   

Regards,

   

- Madhu Sudhan

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