21.5.31 USB Configuration Register

Table 21-37. USB_CR
Bit NumberNameReset ValueDescription
[31:2]Reserved0—
1USB_DDR_SELECT0Used 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

0USB_UTMI_SEL0Used to configure the USB interface as ULPI PHY or UTMI interface. Allowed values:

0: ULPI PHY interface is selected

1: UTMI interface is selected