A microcontroller is a single chip follows instructions reads information and co

ID: 2079242 • Letter: A

Question

A microcontroller is
   a single chip
   follows instructions
   reads information and communicates
   all of the above

Question 2
The following is an assembly language instruction
ADDA $B530
The addressing mode that it uses, is
   relative
   immediate
   direct
   extended

Question 3
The different types of instructions are
   data handling, arithmetic, data test, jump and branch, manipulate, computation
   data handling, arithmetic, logic, manipulate, computation
   data handling, arithmetic, logic, data test, jump and branch, condition code
   data handling, arithmetic, logic, data test, manipulate, condition code

Question 4
Here is an assembly language instruction.
LDAA $015C
The machine code equivalent has
   one byte for the opcode and one byte for the operand
   two bytes for the opcode and two bytes for the operand
   one byte for the opcode and two bytes for the operand
   two bytes for the opcode and two bytes for the operand

Question 5
The following are used to control and monitor I/O processes in a microcontroller
   memory and I/O control registers,
   I/O control registers and status registers
   I/O control registers and memory
   I/O control registers and CPU registers

Question 6
Here is an assembly language instruction
LDAA $015C
Its components are the following
   LDAA is an operand, $015C is an opcode
   $015C is an operand, LDAA is an operand
   LDAA is an opcode, $015C is an operand
   $015C is an opcode, LDAA is an opcode

Question 7
The characteristics of fetch/execute cycles for an instruction are the following
   only one cycle is required for each instruction
   information is always put on the address bus
   works the same way for every type of microcontroller
   the program counter points to the next instruction after it has completed

Question 8
A microcontroller contains
   inputs for program information
   logic for programmed control reading inputs and sending outputs
   memory for programmed control reading inputs and sending outputs
   logic for program information

Question 9
Microcontrollers store information in the form of
   binary numbers
   binary and hexadecimal numbers
   ASCII codes
   all of the above

Question 10
The following are used to condition I/O signal levels if necessary
   memory
   buffers
   converters
   b and c

Explanation / Answer

1. A microcontroller is
   a single chip
   follows instructions
   reads information and communicates
   all of the above

The answer is "all of the above"

Explanation:- A microcontroller is small processing unit on a single chip. It executes programs by following instructions. It reads data from other peripherals and communicates (fetching or execution) to other interfacing devices.

Question 2
The following is an assembly language instruction
ADDA $B530
The addressing mode that it uses, is
   relative
   immediate
   direct
   extended

the answer is direct

Explanation:- ADDA $B530 is one byte instruction. Here ADDA is opcode, add the value of operand directly to the value in accumulator.

The answer is data handling, arithmetic, logic, data test, jump and branch, condition code

Explanation:- the manupulation types instruction consist of aithmetic and logic instruction. so, option 1, 2 and 4 is not correct classification. Here third option is correct.

The answer is one byte for the opcode and two bytes for the operand.

Explanation:- Here LDDA is one byte direct mode instruction. But in this 015C is hexadecimal opcode which is of two bytes. So, the third option is correct.

The answer is I/O control registers and status registers

Explanation:-I/O control registers are used to control the I/O processes of the microcontroller but Status registers including status flags are used to monitoring the I/O processes of microcontroller.

Question 6
Here is an assembly language instruction
LDAA $015C
Its components are the following
   LDAA is an operand, $015C is an opcode
   $015C is an operand, LDAA is an operand
   LDAA is an opcode, $015C is an operand
   $015C is an opcode, LDAA is an opcode

The answer is LDAA is an operand, $015C is an opcode.

Explanation:- Here LDAA is one byte instruction. Instruction is also known as operand and other is opcode.

The answer is the program counter

Explanation:- It points to the next instruction after it has completed. the program counter or instruction pointer (IP) holds the memory address of the next instruction that would be executed. But above three options are incorrect.

Question 8
A microcontroller contains
   inputs for program information
   logic for programmed control reading inputs and sending outputs
   memory for programmed control reading inputs and sending outputs
   logic for program information

The answer is memory for programmed control reading inputs and sending outputs.

Explanation:- Microcontroller is having own memory for programming of interfacing with peripherals.

Question 9
Microcontrollers store information in the form of
   binary numbers
   binary and hexadecimal numbers
   ASCII codes
   all of the above

Answer is binary numbers.

Explanation:- Binary bits (0 or 1) are used to store information in memory.

Question 10

The following are used to condition I/O signal levels if necessary
   memory
   buffers
   converters
   b and c

The answer is buffers and converters are used to condition I/O signal level if necessary

Explanation:- Memory cannot be used to condition I/O signal level.

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A microcontroller is a) a single chip b) follows instructions c) reads informati

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