How should I set the USB_PHY_PAD value in 66AK2H12/06?

RY9983

Other Parts Discussed in Thread: 66AK2H12

Hello.

I have a question about USB3.0 in 66AK2H12/06.
How should I set the USB_PHY_PAD value in USB_PHY_CTL4 register?

USB3.0 UG mentions only K2K, K2E and K2L devices:

K2H has USB ref clock pins(USBCLKM, USBCLKP), it looks like K2K spec.
So, I think USB_PHY_PAD might be set 1.
Is my understanding correct?

Best regards, RY

over 9 years ago

0 Raja over 9 years ago

TI__Guru* 81335 points

Hi RY,

Your understanding should be correct. I will work with team and get back to you in case of issue.

Thank you.

0 Wenzhong Liu over 9 years ago

TI__Intellectual 1805 points

RY,

You are right, the K2K and K2H are the same in terms of the USB setup. So, to use external clock for the USB PHY, the USB_PHY_CTL4[REF_USB_PAD] needs to be 1.

Regards!
Wen

0 RY9983 over 9 years ago in reply to Wenzhong Liu

Guru 10570 points

Thank you for quick response!

Best regards, RY

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How should I set the USB_PHY_PAD value in 66AK2H12/06?