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USB Superspeed Peripherals

Anonymous
Not applicable

Hello,

   

    I downloaded fx3 dvk board schematics from cypress website, and I have some question about it after some days.

   

    On J48(usb micro B connector) in page 9, the connector and the net label on it is as follows:

   

    connector       net_label

   

-----------------------------------------

   

    6 (SSTX-)        SS_TX_M

   

    7 (SSTX+)       SS_TX_P

   

    9 (SSRX-)       SS_RX_P

   

    10(SSRX+)     SS_RX_M

   

------------------------------------------

   

 

   

From Pin 6 & 7, Tx- is labeled as TX_M, and TX+ is labeled as TX_P.

   

So, I suggest 'M' means 'Negative' and 'P' means 'Positive'.

   

But From Pin 9 & 10, RX- is labeled as 'RX_P' and RX+ is labeled as 'RX_M'.

   

Can someone tell me WHY? Is this correct?

   

(My English is so poor, sorry!)

   

Best, Regards.

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Anonymous
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Associated part in schematics

   

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Anonymous
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Anonymous
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Thanks a lot!

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