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Microprocessor

Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 TRAP
 RST 5.5
 INTR
 RST 7

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

 0043H
 003CH
 002CH
 0000H

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Microprocessor
Both the ALU and control section of CPU employ which special purpose storage location?

 Accumulators
 Decoders
 Registers
 Buffers

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Microprocessor
The address bus of any microprocessor is always

 Either unidirectional or bi-directional
 Bi-directional
 None
 Unidirectional

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Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 8085 has 5 interrupts lines, whereas 6800 has only two
 None
 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O
 8085 has multiplexed bus, whereas 6800 does not have

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Microprocessor
The first machine cycle of an instruction is always

 A memory read cycle
 An I/O read cycle
 A memory write cycle
 A fetch cycle

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