configure usb control register
USB_VREFH | |
USB_VREFL | |
USB_VREF_OVERRIDE | |
USB_PAD_PULL_OVERRIDE | |
USB_DP_PULLUP | |
USB_DP_PULLDOWN | |
USB_DM_PULLUP | |
USB_DM_PULLDOWN | |
USB_PULLUP_VALUE | |
USB_PAD_ENABLE_OVERRIDE | |
USB_PAD_ENABLE | |
USB_TXM | |
USB_TXP | |
USB_TX_EN | |
USB_TX_EN_OVERRIDE | |
USB_RESET_DISABLE | |
IO_MUX_RESET_DISABLE |