Does USB disable other UARTs on uPSD chips?

dsalgueiro23 · ‎2004-01-16

Posted on January 16, 2004 at 20:18

dsalgueiro23 · ‎2011-05-17

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.

joseph2399 · ‎2011-05-17

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