Alain Breton - Saint Paul,
Christophe Vatinel - Mouans Sartoux,
Sivayya Venkata Ayinala - Plano TX,
Texas Instruments Incorporated - Dallas TX
713 1, 713 2, 713320, 713323, 711100
According to various illustrative embodiments, an apparatus, system, and method for automatically saving and restoring pad configuration registers implemented in a core power domain are described. In one aspect, the apparatus comprises a save and restore logic component implemented in the core power domain and coupled to the pad configuration registers. The apparatus also comprises a memory instantiated in an always-on power domain and coupled to the save and restore logic component, the save and restore logic component implemented in the core power domain to automatically save the pad configuration registers in the memory in a pad configuration save process before a power supply to the core power domain is switched off and to automatically restore the pad configuration registers from the memory in a pad configuration restore process after the power supply to the core power domain is switched on.