Rajasthan Technical Education Second Year Paper 2016 – Microprocessor and Interfacing

Rajasthan Technical Education Second Year Paper 2016 – Microprocessor and Interfacing

Which of the following instruction does not belong to data transfer group ?
(a) LXI, rp, data
(b) MOV M, r
(c) ANI, data
(d) LDA 2400

Execution of which of the following instruction does not affect any flag of 8085 ?
(a) DCR r
(b) ADD M
(c) DCX rp
(d) ORI data

Name the addressing mode for the instruction LXI SP, AOFO
(a) Register
(b) Immediate
(c) Direct
(d) Register Indirect

In 8085 microprocessor, the address bus is of how many bits ?
(a) 8
(b) 16
(c) 20
(d) 32

What do you mean by SS in 8086 ?
(a) Service segment
(b) Sign segment
(c) Stack segment
(d) Single segment

What do you mean by ALE signal in 8085 ?
(a) Address latch enable
(b) Arithmetic logic execution
(c) Address level enable
(d) Arithmetic logic extension

Recognize number of bytes for Call 2040 instruction ?
(a) One
(b) Two
(c) Three
(d) Four

For 8085 which of the following is a software interrupt ?
(a) RST 5.5
(b) RST 6
(c) RST 7.5
(d) Trap

Which among the following has least access time ?
(a) ROM
(b) SRAM
(c) DRAM
(d) PROM

A 20 bit address bus allows access to a memory of capacity
(a) 64 KB
(b) 1 MB
(c) 64 MB
(d0 1 GB

If A=56 ; CY=1; What is the value of A and CY respectively after execution of the instruction RLC ?
(a) A=AC; CY=0
(b) A=AD; CY=0
(c) A=AC; CY=1
(d) A=AD; CY=1

In 8255 for I/O mode of ooperation which port operators in made ?
(a) Port A
(b) Port B
(c) Port C
(d) All the three ports (A,B,C)

Which of the following is NOT the basic element of the microprocessor ?
(a) Register array
(b) Memory
(c) Control Unit
(d) ALU

For 8085 interrupt, which one has highest priosity among the following
(a) INTR
(b) Trap
(c) RST 7.5
(d) RST 6.5

Why 8086 microprocessor is called a 16 bit processor ?
(a) 8086 has 16 bit address bus
(b) 8086 has 16 bit data bus
(c) 8086 has 16 bit ALU unit
(d) Both (b) and (c)