Getting 1.5A from USB host without enumeration

I want my board to be supplied from USB through PC,
I want:

  • Be in "dedicated charge port" or DCP mod
  • Not entering "suspend" mod

And I prefer if there is some IC that can enumerate for me, is it possible? Or is there any specific pin configuration that will Identify to host that my board need lot's of current (1.5A)?

(If there is no low cost IC able to doing this form me. Then can you give me reference to do it through MCU, if this is not too hard.)

[edited by: mohammadsdtmnd at 5:32 AM (GMT 0) on 24 Dec 2018]