topic Chenge to USB PHY Receiver Control Register in i.MX Processors

Chenge to USB PHY Receiver Control Register

takashitakahash — Thu, 12 May 2016 05:20:51 GMT

Hi community.

Our customer has question below.

About USB PHY Receiver Control Register of (USBPHYx_RXn) for "DISCONADJ"

Customer want to chenge to initial value from 000 (575mV) from set change in 011 (587.5mV).

Would you please advice of concern point set to DISCONADJ = 011(587.5mV).

[ Background of the question ]

Customer would like to set USB PHY Transmitter Control Register of (USBPHYx_TXn) the "D_CAL" to 011 for EYE pattern quality impruvement.,

It would detect problems Disconnection in combination with a specific device has occurred in its influence.

However, in order to be avoided problems by increasing the threshold of detection Disconnect from 575mV to 587.5mV, we have to consider the configuration changes.

Thanks,

Best.

Re: Chenge to USB PHY Receiver Control Register

art — Fri, 13 May 2016 11:46:21 GMT

To make me able to provide you with an accurate answer, please first specify what exactly i.MX family processor do you mean. Is it some of i.MX6 series family? If so, please specify what exacly i.MX6 processor (Quad, Dual, DualLite, Solo, SoloLite, SoloX, UltraLite) do you use.

Best Regards,

Artur

Re: Chenge to USB PHY Receiver Control Register

takashitakahash — Mon, 23 May 2016 05:32:30 GMT

Dear Artur

Thank you for your replay.

Customer use i.MX6DualLite.

Best Regards,

T.Takahashi

Re: Chenge to USB PHY Receiver Control Register

takashitakahash — Fri, 19 Aug 2016 05:17:23 GMT

Dear Artur-san.

I have Additional questions.

To Disconnect detection voltage Will there is variation. (Temperature characteristic)

If there is a temperature variation , Would like to how much of the variation .(precision).

Thank you,

Best Regards.

T.Takahahsi