General-Purpose Input/Output Sleep Mode Clock Gating Control
| SYSCTL_SCGCGPIO_S0 | GPIO Port A Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S1 | GPIO Port B Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S2 | GPIO Port C Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S3 | GPIO Port D Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S4 | GPIO Port E Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S5 | GPIO Port F Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S6 | GPIO Port G Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S7 | GPIO Port H Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S8 | GPIO Port J Sleep Mode Clock Gating Control |
| SYSCTL_SCGCGPIO_S9 | GPIO Port K Sleep Mode Clock Gating Control |