Microprocessors: PreFi

Question 1

It has a microcontroller unit that has all the functional block (including program as well as data memory available on the same chips.

Answer 1

Embedded Microcontroller

Question 2

ALU performs arithmetic and logical operations on a byte (8 bits) at an instructions.

Answer 2

8 Bit Microcontroller

Question 3

It used to hold the contents of data being manipulated.

Answer 3

Register

Question 4

It holds the program instruction and the constant data, Microcontrollers use one or more of the following memory types .

Answer 4

ROM

Question 5

Do not necessarily form part of addressable memory.

Answer 5

Registers wired into the CPU

Question 6

The program, It executes the instruction stored in the program memory pointed to by the instructions stored in the program memory pointed to by the program counter in synchronization with the clock signals.

Answer 6

Central Processing Unit

Question 7

ALU performs arithmetic and logical operations on a byte (16 bits) at an instructions.,

Answer 7

16-Bit Microcontroller

Question 8

8051 having Program and Data Memory, I/O Ports, Serial Communication, Counters and Timers and Interrupt Control logic on the chip.

Answer 8

Embedded Microcontroller

Question 9

Low power consumption and used for low end appliances like LED and LCD display drivers portable battery chargers.

Answer 9

4 Bit Microcontroller

Question 10

One time programmable, electrically le ROM , which is not field programmable.

Answer 10

PROM

Question 11

The used to hold intermediate results and other temporary data during the execution of the program. Typically microcontroller have a few hundred of bytes of RAM.

Answer 11

Random Access Memory

Question 12

ALU performs arithmetic and logical operations on a nibble (4 bits) at no instruction

Answer 12

4 Bit Microcontroller

Question 13

ALU performs arithmetic and logical operations on a byte (32 bits) at an instructions.,

Answer 13

32-bit Microcontroller

Question 14

The contents of these registers include set a timer or enable serial communication.

Answer 14

Registers required by peripheral components

Question 15

Field programmable erasable byte erasable) and flash (similar to EEPROM technology.

Answer 15

EEPROM

Question 16

Used to control program flow and arithmetic functions.

Answer 16

Registers wired into the CPU

Question 16

A complex digital devices that generates steady pulse rate required for timing. All of the separate functions are controlled by one central timing system

Answer 16

Oscillator

Question 17

Field programmable and usually UV erasable

Answer 17

EPROM

Question 18

Enhanced performance computing capability and greater precision as compared to the 8 bit microcontroller.

Answer 18

16-Bit Microcontroller

Question 19

Program counter, stack pointer, RAM address register, program address register and PC incrementor.

Answer 19

Registers required by peripheral components

Question 20

It performs mathematical and logical operations on data

Answer 20

ALU

Question 21

Control various functions of a microcontroller. These are divided into two groups.

Answer 21

Special Function Register

Question 22

ALU performs arithmetic and logical operations on a nibble (4 bits) at no instruction

Answer 22

4 Bit Microcontroller

Question 23

Intel 80960 family, Motorolla M683xx and Intel /Atmel 251 family.

Answer 23

32-bit Microcontroller

Question 24

It keeps track of the last stack location used while the processor is busy manipulating data values checking ports or checking interrupts,

Answer 24

Stack Pointer

Question 25

This timing pulse. provides the basis for proper sequence of all the separate section of the microcontroller chips.

Answer 25

Oscillator

Question 26

Typically consist of microcontroller, a power source, an interface for connecting to a programming device, I/O ports, and additional memory.

Answer 26

Microcontroller module

Question 27

Provides an interface between the microcontroller and the sensors that produce analogue electrical equivalent of the actual physical parameters to the controlled.

Answer 27

Analogue to Digital Converter

Question 28

Uses a routine that is based on timing. If a program has not been completed or repeated as a loop within a certain amount of tim e, the watching timer issues a reset command.

Answer 28

Watchdog timer

Question 29

The signal carried by a ___may represent address data control signal or power.

Answer 29

Bus

Question 30

The microcontroller consist of thousand of digital circuits are combined into areas to provide specific functions.

Answer 30

Internal Operation

Question 31

Application is appliances, specialized devices, The speed is relatively high, The external port is few, Low cost, Energy use is very low to low.

Answer 31

Microcontroller

Question 32

A converters change the digital pulses into analog signals.

Answer 32

Digital to analog and Analog to digital

Question 33

A specialized program found as part of the microcontroller designed to prevent the microcontroller from halting or “locking up” because of a user written program since the instructions are processed step by step.

Answer 33

Watchdog timer

Question 34

It send and receive signals from the devices the microcontroller is designed to control.

Answer 34

Set of I/O ports

Question 35

It provide an interface between the microcontroller and the peripherals I/O devices such as the keyboard, display, etc.

Answer 35

I/O ports

Question 36

It represent a physical connections used to carry a signal from one point to another inside a microcontroller .

Answer 36

Buses

Question 37

It communicate with the controller.

Answer 37

Interface

Question 38

The reset feature allows the controller to recover from the crash, it release the program and set the controller to start over again.

Answer 38

Watchdog timer

Question 39

It mounted on a circuit board with other components function as a single unit, is referred as a module or a microcontroller board.

Answer 39

Microcontroller

Question 40

The port of the microcontroller are used to save data and programs perform math and logic functions and generate timing signals.

Answer 40

Internal Operation

Question 41

General computing ex. Laptop, tablets, Very fast, many external parts, and high cost, the energy use is medium to high.

Answer 41

Microprocessor

Question 42

As an output pin, each pin can output digital signals. When programmed as an input pin each pin can receive digital signals.

Answer 42

I/O port when programmed

Question 43

It used to hold the address of the instruction to be executed next.

Answer 43

Program counter

Question 44

Provides an interface between the microcontroller and the actuator that provides the control function.

Answer 44

Digital to Analogue Converter

Question 45

Powers the microcontroller and any accompanying components located on the printed circuit board.

Answer 45

Power source

Question 46

Are used to keep time and/or measure the time interval between events, count the number of events and generate band rates for the serial ports.

Answer 46

Counter/Timer

Question 47

The different areas are connected by a bus system. The bus system contains tiny parallel circuits that carry the digital pulse patterns from section to section.

Answer 47

Internal Operation

Question 48

Random Access Memory stores program and data temporarily.

Answer 48

Internal Operation

Question 49

This timing pulse. provides the basis for proper sequence of all the separate section of the microcontroller chips.

Answer 49

Oscillator