This register can be used to configure the core after power-on or a change in mode. This register mainly contains AHB system-related configuration parameters. Do not change this register after the initial programming. The application must program this register before starting any transactions on either the AHB or the USB.
| GINTMSK | GINTMSK |
| TXFELVL | TXFELVL |
| PTXFELVL | PTXFELVL |