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Microprocessor

Microprocessor
A combinational PLD with a fixed AND array and a programmable OR array is called a

 PROM
 PLA
 PAL
 PLD

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Microprocessor
While CMP B instruction executes,

 all flags will be affected.
 only carry and zero flags will be affected.
 only carry flag will be affected.
 no flags will be affected.

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Microprocessor
Which of the following is not a general purpose peripheral?

Programmable CRT controller
Programmable interrupt controller
Programmable interval timer
I/O port

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Microprocessor
The data lines of 8085 microprocessor are multiplexed with

None of these
 higher order address lines
 lower order address lines
 status lines

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

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

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

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

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