A 8085 microprocessor based system uses 4Kx8  RAM, whose starting address is AA00H. What is the address of last byte in this memory

1.  AFFFH

2.  B9FFH

3.  BFFFH

4.  A9FFH

View Answer  
4
Correct Answer :

B9FFH


Explanation :
No Explanation available for this question

There are four chips each of 1024 bytes connected to a 16 bit address bus as shown in the figure below. RAM’s 1, 2, 3 and 4 respectively are mapped to address

1.   0C00H-0FFFH, 1C00H-1FFFH, 2C00H-2FFFH, 3C00H-3FFFH

2.  1800H-1FFFH, 2800H-2FFFH, 3800H-3FFFH, 4800H-4FFFH

3.  0500H-08FFH, 1500H-18FFH, 3500H-38FFH, 5500H-58FFFH

4.  0800H-0BFFH, 1800H-1BFFH, 2800H-2BFFH, 3800H-3BFFH

View Answer  
4
Correct Answer :

0800H-0BFFH, 1800H-1BFFH, 2800H-2BFFH, 3800H-3BFFH


Explanation :
No Explanation available for this question

For 8085 microprocessor, the following program executed PTR    MVI A, 05H;            MVI B, 05H;            ADD B;            ACR B;                    JNR PTR;                     ADI 03H;                       HLT; At the end of program, accumulator contains 

1.  17 H

2.  20 H

3.  23 H

4.  05 H

View Answer  
4
Correct Answer :

17 H





Explanation :
No Explanation available for this question

An 8085 assembly language progrom is given below. Assume that the carry flag is initially unset. The content of the accumulator after the execution of the program is MVI A, 07H RLC MOV B, A RLC RLC ADD B RRC

1.   8C H

2.  64 H

3.  23 H

4.  15 H

View Answer  
4
Correct Answer :

23 H


Explanation :
No Explanation available for this question

For 8085 microprocessor, the following program is executed PTR    MVI A, 05H;            MVI B, 05H;            ADD B;            DCR B;                    JNZ PTR;                     ADI 03H;                       HLT; At the end of program, accumulator contains

1.   17H

2.  20 H

3.  23 H

4.   05 H

View Answer  
4
Correct Answer :

17H



Explanation :
No Explanation available for this question

The program given below is run on an 8085-based microcomputer system .Determine the contents of the registers: PC, SP, B, C, H, L after a half instruction is executed. LOC 2000 START: LXI SP, 1000H                         LXI H, 2F37H                         XRA A                          MOV A, H                             INX H                          PUSH H                          CZ 20FFH                          JMP  3000H                          HLT 20FF               ADD H                         RZ                            POP B                          PUSH B                           RNZ 3000                 HLT

1.  (PC)=3001 H, (SP)=0FFE H, (BC)=200DH, (HL)=2F38H

2.  (PC)=2001 H, (SP)=0FFE H, (BC)=300DH, (HL)=1F38H

3.  (PC)=1001 H, (SP)=0FFE H, (BC)=100DH, (HL)=1F38H

4.  (PC)=2001 H, (SP)=0FFE H, (BC)=100DH, (HL)=3F38H

View Answer  
4
Correct Answer :

(PC)=3001 H, (SP)=0FFE H, (BC)=200DH, (HL)=2F38H



Explanation :
No Explanation available for this question

The trigonometric Fourier series of an even functions does not have the

1.   Do term

2.  Cosine terms

3.   Sine terms

4.  Odd harmonic terms

View Answer  
4
Correct Answer :

Sine terms


Explanation :
No Explanation available for this question

The PSD and the power of a signal g(t) are, respectively, Sg(ω) and Pg. The PSD and the, power of the signal a g(t) are, respectively

1.  a2Sg(ω) and a2 Pg

2.  a2Sg(ω) and a Pg

3.  aSg(ω) and a2 Pg

4.  a Sg(ω) and a Pg

View Answer  
4
Correct Answer :

a2Sg(ω) and a2 Pg


Explanation :
No Explanation available for this question

If a signal f(t) has energy E, the energy of the signal f(2t) is equal to

1.   E

2.  E/2

3.  2E

4.  4E

View Answer  
4
Correct Answer :

E/2


Explanation :
No Explanation available for this question

Given f(t)=L-1{3s+1/s3+4s2+(K-3)s] If , then the value of K is

1.   1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question
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