# On-board timer functions

The ADI service supports one application timer per port. This on-board timer has 10 ms resolution and can be used when the application is controlling the protocol from application space. The following timer functions are provided by the ADI service:

Function | Synchronous/ Asynchronous | Description
--- | --- | ---
adiStartTimer | Asynchronous | Starts an on-board timer.
adiStopTimer | Asynchronous | Stops an on-board timer.