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USB Thumb drive Pull up resistors

Question asked by shiwei luan on Aug 8, 2014
Latest reply on Sep 3, 2014 by iggi

Hi, when I read the USB Thumb Drive schematic, I found there is no pull-up resistors on D+ or D- (DMH, DMF, DPH, DPF pins). The overview says it is USB2.0 high speed and full speed Compliance (refer to USB Thumb Drive Reference Design|Freescale).

But if I plug it into computer, will it be recognized as high speed or full speed  and how?

 

Thank you in advance.

Shiwei

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