Digital Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 191 - 195 of 271

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Question 191

Digital Circuits
Memory and I-O Interfacing

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

In 8085, example for Non-maskable interrupts is

Choices

Choice (4)Response

a.

INTR

b.

Trap

c.

RSTO

d.

RST 6.5

Question 192

Digital Circuits
Architecture

Appeared in Year: 2013 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

In Intel 8085, the lower byte of address and data are multiplexed.

Reason(Ꭱ)

This helps not to limit the number of external pin terminals.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question 193

Digital Circuits
Boolean Algebra, Minimization of Functions

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

Consider the following logic families:

1. MOS

2. TTL

3. RTL

4. ECL

The sequence of these logic families in the order of their increasing propagation delay is

Choices

Choice (4)Response

a.

4,3, 2,1

b.

2,1, 3,4

c.

1,2, 3,4

d.

4,2, 3,1

Question 194

Digital Circuits
Counters

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

A counter in which all the flip-flops receive the clock pulse at the same time is known as

Choices

Choice (4)Response

a.

Asynchronous counter

b.

Synchronous counter

c.

Clocked counter

d.

Ripple counter

Question 195

Digital Circuits
Programming

Appeared in Year: 2013 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following List -i with List-ii

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Implied addressing

(i)

LXI H, 2050

(B)

Direct addressing

(ii)

LDA 30 FF

(C)

Immediate addressing

(iii)

RRC

(D)

Register addressing

(iv)

MOV A, B

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iv)
  • (iii)
  • (i)

b.

  • (ii)
  • (i)
  • (iv)
  • (iii)

c.

  • (iii)
  • (ii)
  • (i)
  • (iv)

d.

  • (iii)
  • (ii)
  • (iv)
  • (i)

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