TUSB1210: External VBUS indicator

Yusuke Mukuno

Expert 7395 points

Part Number: TUSB1210

Hi expert,

Regarding, TUSB1210 OTG_CTRL register (address 0x0Ah, 7bit)

If customer want to set 1b to the register, can they use external indicator signal?

If yes, Which pin should they input an external signal to?

Also, could you please let me know about the method of using this function?

Thanks

Muk

over 5 years ago

0 Brian Zhou over 5 years ago

TI__Guru*** 146195 points

it's in OTG block, I will confirm with design.

0 Brian Zhou over 5 years ago in reply to Brian Zhou

TI__Guru*** 146195 points

you can monitor with VBUS pin

0 Yusuke Mukuno over 5 years ago in reply to Brian Zhou

TI__Expert 7395 points

Hi Zhou-san,

Sorry, I am confusing.

EXTERNALVBUSINDICATOR is input signal, right? Customer should input EXTERNALVBUSINDICATOR to VBUS. Is it correct?

Could you please explain about the function of OTG_CTRL register (address 0x0Ah, 7bit)?

Muk

0 Brian Zhou over 5 years ago in reply to Yusuke Mukuno

TI__Guru*** 146195 points

Muk:

Our designer tried to trace back the VBUS valid indicator to external pin "Fault_6p0v", but this pin is not on TUSB1210 pinlist. Since this was an old design and we can't find the original designer.

Regards,

Brian

0 Yusuke Mukuno over 5 years ago in reply to Brian Zhou

TI__Expert 7395 points

Hi Brian-san,

I cannot understand it..

What is Fault_6p0V?

Is it meaning, the indicator signal should be inputted TUSB1210 Fault_6p0v pin, However TUSB1210 don't have Fault_6p0v pin.

This pin is from internal design information in the past. Is it correct?

If it is correct, customer cannot use this function, right?

Thanks

Muk

0 Brian Zhou over 5 years ago in reply to Yusuke Mukuno

TI__Guru*** 146195 points

you are right, there are suppose to be an external pin called "fault_6p0v", but there is no such pin on TUSB1210

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TUSB1210: External VBUS indicator