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Microprocessor

Microprocessor
The number of hardware interrupts present in 8085 microprocessor are

 8
 10
 5
 16

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

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

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 1, 2 and 4
 1, 2 and 3
 2, 3 and 4
 1, 3 and 4

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 ORI 0FH
 CMA
 XRI 0FH
 ANI 0FH

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Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 Z-80
 68000
 8085
 6502

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Microprocessor
The multiplexing of address bus and data buses is used in

 all the microprocessors.
 depends on the internal architecture.
 never multiplexed.
 none of these.

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