How to control PSW on TUSB1211

Michael Williamson

Expert 1975 points

Other Parts Discussed in Thread: TUSB1211

Hello,

I need to control the PSW pin of the TUSB1211. The specification refers to a bit, PSW_OSOD, mentioned in table 2-1 of the spec. Where is it? There is no register map published with the specification. I am assuming it is a vendor specific register?

-Mike

over 11 years ago

0 Diego Cortes over 11 years ago

TI__Mastermind 36085 points

Hello,

We are reviewing your post and we will reply by Wednesday.

Regards,

Diego.

0 Michael Williamson over 11 years ago in reply to Diego Cortes

Expert 1975 points

Thanks! I am looking forward to your response. We have 3 products (all in prototype phase) that have this part designed in, and this issue popped up in our validation of peripheral mode USB operation (the PSW is always active on at the moment, regardless of the negotiated state).

-Mike

0 Diego Cortes over 11 years ago in reply to Michael Williamson

TI__Mastermind 36085 points

Hello lliamsonchael,

Please send me an email to diego.cortes@ti.com in order to provide you the information.

Best regards,

Diego.

0 Jari Tuikkala over 11 years ago in reply to Diego Cortes

Prodigy 20 points

Hello Diego,

Could you help me with PSW pin register settings? We are using TUSB1211 in OTG device and host function and we are not able to set PSW pin to indicate to the external CP to provide VBUS.

Which registers need to change from reset state to enable PSW pin functionality?

At second phase we may need to change PSW polarity to open drain with 1.8V I/O level. Which registers need to change for changing PSW pin polarity?

Jari Tuikkala

0 Diego Cortes over 11 years ago in reply to Jari Tuikkala

TI__Mastermind 36085 points

Hello Jari,

Here you go a sumary of the configuration registers for the PSW pin

Best regards,

Diego.

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How to control PSW on TUSB1211