Jp12: usb0, usb1 (cn1, j24) power setting, Jp13: usb2, usb3 (j17) power setting, Jp14: usb4, usb5 (j18) power setting – IBASE IB827 User Manual
Page 17: Jp15: usb6, usb7 (j19) power setting, Jp12 setting function, Jp13 setting function, Jp14 setting function, Jp15 setting function