# Acronyms and terms List of acronymns and terms used in this document. | Term | Description | | --- | --- | | DMIC | Digital microphone interface | | EDL/QDL | Emergency download mode or Qualcomm download mode | | GMSL | Gigabit multimedia serial links | | GPIO | General-purpose input/output | | QUP | Qualcomm universal peripheral | | SoC | System-on-chip | | SoM | System-on-module | | UART | Universal asynchronous receiver/transmitter | Last Published: Feb 07, 2025 [Previous Topic Related documents](https://docs.qualcomm.com/bundle/publicresource/80-70015-251/topics/rel-docs.md) [Next Topic Development regulatory notice](https://docs.qualcomm.com/bundle/publicresource/80-70015-251/topics/develop_device_regulatory_notice.md)