• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 649 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

TUSB1046EVM: Using DP-Monitor to Display from a Laptop

TUSB1046EVM: SSTX(USB Micro-B connector) <--> SSTX (TUSB1046) or SSTX(USB Micro-B connector) <--> SSRX (TUSB1046)

Cookie
Prodigy 145 points
Part Number: TUSB1046EVM

Hi Sir

I have one question about TUSB1046EVM(INT053 Rev B).

In SPEC, the application circuit shows SSTX(USB Micro-B connector) <--> SSTX (TUSB1046)    

                                                            SSRX(USB Micro-B connector) <--> SSRX (TUSB1046)

However, EVM shows SSTX(USB Micro-B connector) <--> SSRX (TUSB1046)

So I'm a little confused about this. 

Thanks so much!

  • 0
    TI__Guru**** 158546 points

    Hi,

    The application circuit shows the TUSB1046 connection to a host while the EVM shows the connection to a Micro-B connector, both are correct. 

    It is best to look at the TUSB1046 Pin Functions table and the I/O definition. The SSTX is being defined as an input and the SSRX is being defined as an output. 

    The Micro-B connector and host SSTX/SSRX are being defined as shown below.

    Thanks

    David

  • 0 in reply to David (ASIC) Liu
    Prodigy 145 points

    Hi David 

    Understood! Thanks a lot!

    BTW, why does SSTXnp & SSRXnp define as upstream facing port and RXnp/TXnp define as Downstream Facing port?

    As far as I know, DFP is the Host side and UPF is the device side.  Thanks again!!