Run Mode Clock Gating Control Register 2
| SYSCTL_RCGC2_GPIOA | Port A Clock Gating Control |
| SYSCTL_RCGC2_GPIOB | Port B Clock Gating Control |
| SYSCTL_RCGC2_GPIOC | Port C Clock Gating Control |
| SYSCTL_RCGC2_GPIOD | Port D Clock Gating Control |
| SYSCTL_RCGC2_GPIOE | Port E Clock Gating Control |
| SYSCTL_RCGC2_GPIOF | Port F Clock Gating Control |
| SYSCTL_RCGC2_GPIOG | Port G Clock Gating Control |
| SYSCTL_RCGC2_GPIOH | Port H Clock Gating Control |
| SYSCTL_RCGC2_GPIOJ | Port J Clock Gating Control |
| SYSCTL_RCGC2_UDMA | Micro-DMA Clock Gating Control |
| SYSCTL_RCGC2_USB0 | USB0 Clock Gating Control |