21.5.31 USB Configuration Register
| Bit Number | Name | Reset Value | Description |
|---|---|---|---|
| [31:2] | Reserved | 0 | — |
| 1 | USB_DDR_SELECT | 0 | Used to configure USB works in Single Data
Rate (SDR) mode or Double Data Rate (DDR) mode. Allowed values: 0: SDR mode is selected 1: DDR mode is selected |
| 0 | USB_UTMI_SEL | 0 | Used to configure the USB interface as ULPI PHY or UTMI interface. Allowed values: 0: ULPI PHY interface is selected 1: UTMI interface is selected |