DLPU110B April 2021 – August 2022 DLPC6540
There are 88 GPIO pins in the system. Some of these pins are dedicated for system specific operations. Refer to DLPC6540 controller datasheet for the freely available GPIOs. The functionslisted below can be used to setup the available GPIOs.
| Command Name | Description |
|---|---|
| GPIO Pin Config | Configure GPIO as input or output; incase of output, configure as Standard or OpenDrain type, with default value as HIGH or LOW. |
| GPIO Pin | Change the state of the output GPIO to HIGH or LOW and to Read the state of input GPIO pin. |
Users are advised to have proper (default) pullup resistance and and pulldown resistance on the GPIO pins to avoid problems especially when the controller is in reset or boot-up state. By default all the freely avaialble GPIOs are configured as INPUT and tri-stated. The system reconfigures them only upon receiving these commands.