Friday, September 30, 2016

Embedded System Glossary – U

Embedded System Terminology - U

uClinux - A variant of the popular Linux kernel designed for use in systems without a memory management unit.
Ultra Large Scale Integration (ULSI) - A reference to the number of electronic components in an IC. A ULSI chip is an IC containing over 1,000,000 electronic components per chip.
Unidirectional - A one-way flow of information, as in some communications channels.
Unified Modeling Language - A standardized visual notation for communication about system specifications and design details. Abbreviated UML.
Uninitialized data - Static variables that have no initial value assigned to them. Uninitialized data is generally located in the bss segment.
Universal Asynchronous Receiver Transmitter (UART) - A serial interface that supports asynchronous serial transmission.
Universal Synchronous Asynchronous Receiver Transmitter (USART) - A serial interface that supports both synchronous and asynchronous serial transmission.
Universal Serial Bus - A serial protocol and physical link that transmits all data differentially on a single pair of wires
Untwisted Pair (UTP) - A pair of parallel wires used for digital and analog data transmission.
Up counter - A counter that counts up from zero toward its maximum value.
User mode - A state in which a processor will not execute some of its instructions.

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Related topics:
Embedded System Architecture   |   Embedded Hardware Architecture   |   Embedded Software Architecture   |   Embedded Software Definition   |   Embedded System Acronyms   |   Embedded System Symbols

List of topics: Embedded System

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