SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
When operating a pad in certain modes, a Virtual IO Timing Mode must be selected to ensure that IO timings are met. The modes requiring Virtual IO Timing Modes are described in Virtual Functions Mapping tables within the “Timing Requirements and Switching Characteristics” section of the Data Manual. These tables list each pad associated with a specific Virtual IO Timing Mode, along with the DELAYMODE setting required for that pad.
To select a Virtual IO Timing Mode, both the MODESELECT field of each associated pad configuration register must be set to 0b1 and DELAYMODE field of each associated pad configuration register must be set to match the Virtual Function Mapping tables in the Data Manual.
Selection of all Virtual IO Timings Modes should be done as part of the IO Delay Recalibration Sequence described in Section 18.4.6.1.8, IO Delay Recalibration.