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Microprocessor

Microprocessor
RST 3 instruction will cause the processor to branch to the location

 0000H
 0028H
 0018H
 0024H

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 serial I/O is not possible
 there is a pin available for serial input
 there is a pin available for serial output
 serial I/O is possible through SIM and RIM instruction

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 H-L.
 Program Counter.
 Stack Pointer.
 D-E.

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 PSW
 B-C
 Stack Pointer
 D-E

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for microprocessor
 direct memory access for the I/O device
None of these
 direct memory access for the user

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Microprocessor
Pick up the programmable interrupt controller from the following

 8279
 8275
 8257
 8259

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