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1
GATE EE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
In $$8085A$$ microprocessor, the operation performed by the instruction $$LHLD$$ $${2100_H}$$ is
A
$$\left( H \right) \leftarrow {21_H},\,\left( L \right) \leftarrow {00_H}$$
B
$$\left( H \right) \leftarrow M\left( {{{2100}_H}} \right),\,\left( L \right) \leftarrow M\left( {{{2101}_H}} \right)$$
C
$$\left( H \right) \leftarrow M\left( {{{2101}_H}} \right),\,\left( L \right) \leftarrow M\left( {{{2100}_H}} \right)$$
D
$$\left( H \right) \leftarrow {00_H},{\mkern 1mu} \left( L \right) \leftarrow {21_H}$$
2
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
An input device is interfaced with Intel $$8085$$ $$A$$ microprocessor as memory mapped $${\rm I}/O,$$ the address of the device is $$2500H.$$ In order to input data from the device to accumulator, the sequence of instructions will be
A
$$\eqalign{ & LX{\rm I}\,\,\,H,2500H \cr & \,\,\,\,MOV\,\,A,M \cr} $$
B
$$\eqalign{ & LX{\rm I}\,\,\,H,2500H \cr & \,\,\,\,MOV\,\,M,A \cr} $$
C
$$\eqalign{ & LHLD\,\,\,2500H \cr & \,\,\,\,MOV\,\,A,M \cr} $$
D
$$\eqalign{ & LHLD\,\,\,2500H \cr & \,\,\,\,MOV\,\,M,A \cr} $$
3
GATE EE 2002
MCQ (Single Correct Answer)
+1
-0.3
The logic circuit used to generate the active low chip select $$(CS)$$ by an $$8085$$ microprocessor to address a peripheral is shown in Fig. The peripheral will respond to addresses in the range. GATE EE 2002 Digital Electronics - Microprocessor Question 22 English
A
$$E000$$ $$-$$ $$EFFF$$
B
$$000E-FFFE$$
C
$$1000-FFFF$$
D
$$0001-FFF1$$
4
GATE EE 2002
MCQ (Single Correct Answer)
+1
-0.3
When a program is being executed in an $$8085$$ microprocessor, its Program Counter contains
A
the number of instructions in the current program that have already been executed
B
the total number of instructions in the program being executed
C
the memory address of the instruction that is being currently executed
D
the memory address of the instruction that is to be executed next
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GATE EE Subjects
Electric Circuits
Three Phase Circuits Transient Response Graph Theory Two Port Networks Sinusoidal Steady State Analysis Network Elements Network Theorems
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
Signals and Systems
Linear Time Invariant Systems Continuous and Discrete Time Signals Continuous Time Signal Fourier Transform Continuous Time Periodic Signal Fourier Series Discrete Time Signal Z Transformation Miscellaneous Continuous Time Signal Laplace Transform Sampling Theorem
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Engineering Mathematics
Linear Algebra Differential Equations Calculus Probability and Statistics Numerical Methods Vector Calculus Transform Theory Complex Variable
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
Power System Analysis
Parameters and Performance of Transmission Lines Power Generation Cost Power System Stability Symmetrical Components and Symmetrical and Unsymmetrical Faults Circuit Breaker Switch Gear and Protection Per Unit System Load Flow Studies High Voltage Dc Transmission Generating Power Station
Electrical and Electronics Measurement
Basic of Indicating Instruments Error Analysis and Measurement Measurement of Resistance and A.C Bridges Measurement of Energy and Power Digital Voltmeters Questions Potentiometer and Instrument Transformers Cathode Ray Oscilloscope
Analog Electronics
Diode Circuits and Applications Frequency Response Bjt and Mosfet Biasing 555 Timer Feedback Amplifiers and Oscillator Circuits Operational Amplifier Small Signal Modeling
Control Systems
Time Response Analysis Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Root Locus Techniques Basics of Control System Routh Hurwitz Stability Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Single and Three Phase Rectifier Power Semiconductor Devices Ac Voltage Controllers Inverters
Digital Electronics
Boolean Algebra Logic Gates Combinational Circuits Minimization Logic Families and Memories Sequential Circuits Analog to Digital and Digital to Analog Converter Microprocessor
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