Test: Signals And Systems & Microprocessors - 1 - Electronics and Communication Engineering (ECE) MCQ

The Laplace transform of a continuous-time signal x(t) is

If the Fourier transform of this signal exists, then x(t) is

The ROC for the Laplace transform of signal

x(t) = e^-2t {u(t) — u(t — 5)] is given by

Under what condition the energy of signal g₁(t) and g₂(t) equals to E₉₁ + E_g2

The signal V(t) = cos 5 πt + 0.5 cos 10 πt,is instantaneously sampled. The interval between the samples is 'T_S'. Then the maximum allowable value for 'T_s' is

Inverse Laplace transform of

Match List-I (Type of Addressing Modes)

with List-II (Instructions set) and select the correct answer using the codes given below the lists:

List-I

1. Implicit addressing mode

2. Direct addressing mode

3. Register indirect mode

4. Register addressing mode

List-II

1. MOV A, M

2. MOV A, B

3. CMA

4. STA 2700H

Codes:

Consider the following statements:

1. Programme Status Word (PSW) = Accumulator + Flag Register + Program Counter
2. Program counter is a 16-bit register.
3. Stack pointer operates as last in last out.
4. "TRAP" is both level and edge sensitive. Which of the statements are false?

In priority orders, the interrupts in microprocessor are as

A memory chip of size 4 k byte has starting location 2000H. The last location of memory chip is given by

The 8085 assembly language instruction that stores the content of H and L register into the memory locations 2050H and 2051H, respectively is

The following program is run on an 8085 microprocessor:

Memory Address            Instruction

(in hex)

3000                                LXI SP, 4000

3003                                 PUSH H

3004                                 PUSH D

3005                                  CALL 3050

3008                                  POP H

3009                                   HLT

At the completion of execution of the program, the program counter of 8085 and stack pointer contains

15 8 memory chips of 64 x 4 bit size have address buses connected together. The resultant memory is