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Microprocessor

Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

log2 (m)
m
2^m
2*m

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Microprocessor
The number of hardware interrupts present in 8085 microprocessor are

 5
 10
 16
 8

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Microprocessor
An 8-bit microprocessor can have ………….. address lines.

 16
 8
 32
 cannot be predicted

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 To disable data bus
 To latch data D0-D7 from data bus
 To achieve all the functions listed above
 Enable the data bus to be used as low order address bus

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Microprocessor
When an 8085 microprocessor is reset, the address bus contains

 0000H
 0043H
 003CH
 002CH

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Microprocessor
‘Burst refresh’ in DRAM is also called

Hidden refresh
Distributed refresh
Concentrated refresh
None of these

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