tusb2036 works in usb 2.0?

Marcelo Augusto Garbuli said:

Hello

 

i have a board with tusb2036, i have a 1k5 resistor between DPO and DPOPUR.

in this configuration is high speed, Why when i connect a pen drive, for example, in any downstream port, the windows xp says "This device can perform faster if you connect it to a hi-Speed USB 2 0"?

yours truly

Marcelo

I am looking in to USB communications on a project and noticed your issue.

I read the data sheet and also the erata TUSB2036 Errata 

the short answer is  " .... TI has no planned fix in the pipeline, but wants users to be aware of this issue,
which can easily be avoided by guaranteeing that DP be asserted high before DM. In the event that a
false low speed detection is observed, the situation can be resolved by performing a
CLEAR_PORT_FEATURE(PORT_ENABLE) followed by a RESET_PORT in the software driver,
assuming both DP and DM are now stable "

There are times I need high speed and others where it isn't as important and I can agree at how annoying it can be seeing windows tell you it could perform faster in a different socket.  I am leaning towards the newer TUSB8020A, TUSB8040A Four-Port and Two-Port USB 3.0 Hub, however I don't have experience with BGA type arrangements.

hope the copy and paste from the erata helps.