GPIO module allows you to use the adapter pins as general purpose input/output lines. DLN-4 adapter has 48 pins grouped together in 6 ports. You can individually configure each pin as an input or as an output.
Each I/O line of the DLN adapter features:
- A debounce filter providing rejection of unwanted pulses from key or push button operations.
- Open drain functionality.
- Control of the embedded pull-up resistors of the I/O line.
A DLN-series adapter can be configured to send DLN_GPIO_EVENT events. They are generated when the level on an I/O line meets specified requirements. A user can set the events to be recurrent in order to continuously monitor the level on the I/O lines.