Example of GPIO test in input mode

In the following example, a GPIO test is done in the input mode with Serial Wire Debug (SWD) controls.

1. Write the GPIO pins connected with drive strength H0H1:
   • Address: 0x50842700 (+ n x 0x4 for GPIO0-31)
   • Data: 0x300
2. Write the GPIO pins to the input mode:
   • Address: 0x50842514
   • Data: 0x0
3. Set the GPIO pins to the wanted state from a production tester.
4. Read the GPIO status.
   • Address: 0x50842510
5. Compare the read value to the tester setting.