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dsalgueiro23
Visitor II
January 16, 2004
Question

Does USB disable other UARTs on uPSD chips?

  • January 16, 2004
  • 2 replies
  • 667 views
Posted on January 16, 2004 at 20:18

Does USB disable other UARTs on uPSD chips?

    This topic has been closed for replies.

    2 replies

    D
    dsalgueiro23Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:57

    Hello all,

    I'm interested in the uPSDs with USB capability. If I use the USB port, can I also use the 2 UARTs independantly? How many I/O pins do I give up for each UART and USB port?

    I can't get to the uPSD manuals on ST's site right now, seems to be down.

    Thanks for your info.
    J
    joseph2399
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:57

    Yes you can use them independently. uPSD has dedicated USB ports therefore will not consume I/O pins. Each UART requires two I/O pins, (i.e. TxD and RxD). I just checked our website, it appears to be O.K., please try to use the link below:

    http://www.st.com/stonline/products/families/memories/psm/ds.htm
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