iMX6DL : Is the USB_OTG_ID pin necessary for USB boot (Serial Downloader) ?

[koichisakagami]

Dear community,

I consider using the Serial Downloader .
Please see Table 89 (p.133) in IMX6SDLIEC (Rev.3).

The allocated pads during boot for USB interface are USB_OTG_DP , USB_OTG_DN and USB_OTG_VBUS.
There is not USB_OTG_ID pin.

Is the USB_OTG_ID pin necessary for USB boot (Serial Downloader) ?

Best Regards,
Koichi Sakagami

[Yuri]

  To be fully on safe side it may be recommended to follow USB standards and terminate

all associated signals properly. In the same time, looks like, no additional pins configured / used
(except USB_OTG_DN / DP) by the  boot ROM in Serial (USB) boot mode. I checked it on my SDP.

All related signals / pins (USB_OTG_ID, USB_OTG_OC, USB_OTG_PWR) are configured in default
(after reset) state, when IOMUXC_SW_MUX_CTL_PAD_xxx[MUX_MODE] = 5 (GPIO).

Have a great day,
Yuri

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