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Microprocessor

Microprocessor
Of the following circuits, the one which involves storage is

Mux
Decoder
Nand
RS Latch

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 POP PSW
 PUSH PSW
 PUSH SP
 PUSH A

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Microprocessor
In a microprocessor based system the stack is always in

 ROM
 microprocessor
 RAM
 EPROM

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 RST 7.5
 RST 5.5
 INTR
 TRAP

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 7
 16
 13
 10

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Microprocessor
Identify the communication interfacing device from the following

 8251
 8257
 8155
 8255

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