Author Question: What does UART stand for, and what does it do? A) Universal ASCII Relay Transmission; defines a ... (Read 34 times)

B · **on:** Jul 28, 2018

What does UART stand for, and what does it do?

A) Universal ASCII Relay Transmission; defines a method (standard) by which data communications can be made between parallel and serial devices or systems.
B) United Artists Radio and Television; the standard data interfacing system first used by the movie industry.
C) Universal ASCII Receiver Transmitter; it is used to transmit and receive ASCII characters.
D) Universal Asynchronous Receiver Transmitter; it is used to interface the parallel data bus in a typical computer system to serial data transmission lines.

Question 2

A technician is testing an undocumented digital system with a signature analyzer. What indications should the technician look for?

A) Look for similar signatures that show up at different points in the circuit; no two points should be the same.
B) As signals flow from one circuit to another, changes will take place; look for changes in the signatures, especially between inputs and outputs.
C) Without documented signatures, the instrument is basically useless.
D) Use a logic analyzer to verify the correct operation of the signature analyzer; once its accuracy has been confirmed, its indications can be relied upon for troubleshooting.