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TUSB320HI: Moving to USB type C from USB micro B on our TI-EVM

Uttam Reddy Pailla
Expert 4230 points
Part Number: TUSB320HI
Other Parts Discussed in Thread: TMS320F28388D,

Hello Folks,

We have an existing EVM (TMS320F28388D control card) which uses USB micro-B for data and power selection. For the new EVM planning to change the existing USB micro-B to USB type C. 

Attaching here the existing schematic:

Queries:

1. For the DRP (dual role port), we need to operate both as a host (DFP) and a peripheral (UFP) based on the CC (on type C) PU/PD ? is it possible with TUSB320HI?

2.  Do we need to use the device (TUSB320HI), as our requirement is only GPIO mode but not I2C mode. Our requirement is to provide flexibility to detect DFP or UFP. 

Awaiting your valuable inputs.

Thanks,

Uttam

  • 0
    TI__Guru*** 139345 points

    Uttam

    I would point you toward this white paper as a quick introduction of switching from USB2 OTG to USB3 Type-C, https://www.ti.com/lit/wp/slly017/slly017.pdf.

    1. For the DRP (dual role port), we need to operate both as a host (DFP) and a peripheral (UFP) based on the CC (on type C) PU/PD ? is it possible with TUSB320HI?

    Yes, you can use the PORT Pin to set the TUSB320HI port mode

    2.  Do we need to use the device (TUSB320HI), as our requirement is only GPIO mode but not I2C mode. Our requirement is to provide flexibility to detect DFP or UFP. 

    You can use the ID pin to indicate DFP or UFP.

    Please note when operating in the DFP mode, the VBUS must be off until the CC handshake has been completed.

    Thanks
    David