TUSB1044: GPIO configuration control for USB3 only application

Roy Hsu

Part Number: TUSB1044

Hi Team,

For a USB3 only Source side application, which of the following GPIO configuration should I use? The only difference is on DIR1 and I'm not sure if it's a don't-care for USB3 only applications.

Thanks!

Roy

over 3 years ago

0 David (ASIC) Liu over 3 years ago

TI__Guru**** 159241 points

Roy

Please refer to Table 2 of the TUSB1044 datasheet -> One Port USB 3.1 - No Flip or One Port USB 3.1 - Flip, then you can choose between Source and Sink design.

Thanks

David

0 Roy Hsu over 3 years ago in reply to David (ASIC) Liu

TI__Genius 9320 points

Hi David,

The snapshots were lost so my question was probably unclear to you. My question is, does it matter to use "USB + DP Alternate mode" or "USB + Custom Alternate mode"?