Question 1

Both a microcomputer and a microcontroller contain a CPU.

Accepted Answer

Both a microcomputer and a microcontroller contain a CPU (Central Processing Unit) as it is the primary component responsible for executing instructions in both types of devices.

Question 2

An 8 -bit CPU has an address bus that is eight bits wide.

Accepted Answer

An 8-bit CPU refers to the width of the data bus, meaning it can process 8 bits of data at a time. The width of the address bus, which determines the maximum amount of memory the CPU can address, can be different and is not limited to 8 bits.

Question 3

The content of a ROM is sometimes called firmware because it contains the program.

Accepted Answer

False

Question 4

An EPROM uses ultraviolet light to erase its contents.

Accepted Answer

EPROM (Erasable Programmable Read-Only Memory) can be erased and reprogrammed by exposing it to strong ultraviolet light, which clears its stored data.

Question 5

Parallel I/O is referred to as GPIO.

Accepted Answer

GPIO stands for General Purpose Input/Output, which is a parallel I/O interface.

Question 6

Both synchronous and asynchronous ports provide serial I/O for the microcontroller.

Accepted Answer

Synchronous and asynchronous ports both support serial I/O communication for microcontrollers, allowing for data transmission one bit at a time, either with (synchronous) or without (asynchronous) an accompanying clock signal.

Question 7

The synchronous communication port on a microcontroller is used for servicing and testing.

Accepted Answer

The synchronous communication port on a microcontroller is primarily used for serial data transfer between the microcontroller and other devices, not just for servicing and testing.

Question 8

The three main bus systems in a microcontroller are address, data, and I/O.

Accepted Answer

The three main bus systems in a microcontroller are address, data, and control buses. The I/O (Input/Output) is not considered a main bus system but rather a function that can be facilitated through the data and address buses under the control of the control bus.

Question 9

A RISC CPU has less instructions available to the programmer than a non -RISC CPU.

Accepted Answer

RISC (Reduced Instruction Set Computer) CPUs are designed with a smaller set of simpler instructions compared to non-RISC (CISC - Complex Instruction Set Computer) CPUs, allowing for more straightforward hardware design and faster instruction execution.

Question 10

A watchdog timer generates an interrupt when the system is hung.

Accepted Answer

The answer of A watchdog timer generates an interrupt when...

Question 11

The Joint Test Action Group coordinates those microcontroller instructions that are used for software troubleshooting.

Accepted Answer

The Joint Test Action Group (JTAG) is a standard for verifying designs and testing printed circuit boards after manufacture, not for coordinating microcontroller instructions for software troubleshooting.

Question 12

A USART is a universal synchronous and real time transmitter.

Accepted Answer

A USART is a Universal Synchronous/Asynchronous Receiver/Transmitter, meaning it can handle both synchronous and asynchronous serial communications, not "real time."

Question 13

A SRAM is a static random access memory.

Accepted Answer

SRAM stands for Static Random Access Memory, which retains data bits in its memory as long as power is being supplied, without needing to refresh the data periodically.

Question 14

Assembly language is a low -level language that uses mnemonic instructions.

Accepted Answer

Assembly language is considered a low-level programming language that uses mnemonic codes or symbols to represent machine-level instructions, making it easier for humans to understand and write than binary code.

Question 15

When compiling your high level language program, an assembler is still required to translate to machine language.

Accepted Answer

An assembler is a program that translates assembly language into machine language. Assembly language is a low-level programming language that is very close to the machine language of a particular computer. When compiling a high-level language program, the compiler first translates the program into assembly language. The assembler then translates the assembly language into machine language.

Question 16

Build process errors result from misinterpretation of requirements.

Accepted Answer

Build process errors typically result from issues in the compilation or construction of the software, such as syntax errors, dependency issues, or configuration problems, rather than from misinterpretation of requirements, which would more likely lead to functional errors in the software.

Question 17

A source -code debugger controls the program on the target system.

Accepted Answer

A source-code debugger allows the programmer to execute and control the program on the target system, enabling them to inspect and modify its behavior for debugging purposes.

Question 18

The disadvantage of simulators is that they cannot simulate I/O signals.

Accepted Answer

The answer of The disadvantage of simulators is that they...

Question 19

In -circuit emulators provide a quick, accurate and inexpensive method of debugging.

Accepted Answer

In-circuit emulators (ICEs) provide a very accurate method of debugging at the hardware level, but they are typically expensive and can be complex to set up and use, not inexpensive.

Question 20

The program for a BASIC stamp is compressed and download from a PC.

Accepted Answer

The program for a BASIC Stamp is typically developed on a PC, where it is written and debugged using an integrated development environment (IDE). Once the program is ready, it is compressed and downloaded to the BASIC Stamp microcontroller via a serial or USB connection. This process is necessary because the BASIC Stamp has limited memory, and compressing the program allows for more efficient use of its resources.

Quiz 7: Embedded Microcontrollers, Open and Closed Loop Process Control