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Digital Electronics
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Boolean Algebra
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Analog to Digital and Digital to Analog Converter
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Minimization
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Logic Families and Memories
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1
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
$$\eqalign{ & LHLD\,\,\,2500H \cr & \,\,\,\,MOV\,\,M,A \cr} $$
2
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
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 2000
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following is not a vected interrupt?
A
$$TRAP$$
B
$$INTR$$
C
$$RST$$ $$7.5$$
D
$$RST$$ $$3$$
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Questions Asked from Marks 1
GATE EE 2014 Set 3 (1) GATE EE 2008 (1) GATE EE 2002 (2) GATE EE 2000 (1) GATE EE 1997 (2) GATE EE 1995 (1) GATE EE 1994 (1) GATE EE 1993 (1) GATE EE 1992 (1)
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement