TPS65982: Legacy mode with VBUS always on

Jose Pedro Carmo

Prodigy 80 points

Part Number: TPS65982

Hi,

Is there a reference design for the TPS65982 firmware that enables VBUS switch and disables CCx negotiation?

over 4 years ago

0 Hari Patel1 over 4 years ago

TI__Genius 12700 points

Hi Jose,

There's isn't a reference design with that application. However, if you want the PD controller to behave as a Legacy device, you may Disable USB PD in 0x29 Control Configurations register.

Are you looking for a Type-C controller only without PD capabilities since you don't want to use CC pins?

Thank you,

Hari

0 Jose Pedro Carmo over 4 years ago in reply to Hari Patel1

Prodigy 80 points

Hi Hari,

This is to help debug/troubleshoot an issue on an USB 3.1 host prototype. If I could enable VBUS

I think you were referring to PD Mode = Legacy USB Host/Source in your previous message. Where can I find the complete register description for this part? I could not find any reference to "Legacy USB Host" or 0x29 in the datasheet...

Thankx...

0 Hari Patel1 over 4 years ago in reply to Jose Pedro Carmo

TI__Genius 12700 points

Hi Jose,

Yes you can reference the TPS65982 Technical Reference Manual for the full details of the register descriptions to help with the debug.

Thank you,

Hari

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TPS65982: Legacy mode with VBUS always on