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Microprocessor

Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 1280ns
 960ns
 320ns
 640ns

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

 RST 7
 RST 5.5
 TRAP
 INTR

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

 PAL
 PLA
 PROM
 PLD

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Microprocessor
Which of the following pair of gates can form a latch?

A cross coupled NAND/OR
A pair of cross copled AND
A pair of cross coupled NAND
A pair of cross coupled OR

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

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 10
 6
 8
 4

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