There are advanced GPIO events that can be used to load modified configurations to device at run-time. The example shows that TPS65987D transmit new source capabilities 5 V, 3 A when GPIO4 goes from high to low and 5 V, 3 A and 9 V minimum 20 V maximum, 3 A when GPIO4 goes from low to high. Here are the steps to set up I/O Configuration:

1. Load a template. The new project template TPS65987DDH_advanced_v4_01.tpl can be loaded by clicking Project→TPS65987DDH→Advanced→Dual Role Port (DRP), prefers power source→None (DisplayPort Only).
2. Change Number of Configuration Sets in General Settings to 2, and then change Virtual Device 1 to AC GPIO Low, and Virtual Device 2 to AC GPIO High as shown in Figure 3-3.
   Figure 3-3 Number of Configuration Sets
3. Set App Configuration Group 1 in Common Settings.
   Figure 3-4 App Config Group 1 Settings
4. Adjust Registers in AC GPIO Low (0x1) to set the behavior when GPIO4 goes from high to low. External hardware event can trigger the PD controller to change configuration. In this example, GPIO4 high to low transition would configure Transmit Source Capabilities resister (0x32) with one PDO as shown in Figure 3-5 and Figure 3-6.
   Figure 3-5 Adjust Registers in AC GPIO Low (0x1)
   Figure 3-6 App Config GPIO Set Event, GPIO Low Settings Example
5. Adjust Registers in AC GPIO High (0x2) to set the behavior when GPIO4 transients from low to high. In this example, GPIO4 low to high transition would configure Transmit Source Capabilities register (0x32) with two PDOs as shown in Figure 3-7.
   Figure 3-7 App Config GPIO Set Event, GPIO High Settings Example
6. Map Load App Config Set 1 to GPIO4 as shown in Figure 3-8.
   Figure 3-8 Map Load App Config Set 1 to GPIO 4