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Microprocessor

Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 PSW
 Stack Pointer
 B-C
 D-E

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Microprocessor
An I/O processor controls the flow of information between

Cache memory and I/O devices
Cache and main memory
Two I/O devices
Main memory and I/O devices

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Microprocessor
A field programmable ROM is called

 MROM
 PROM
 FPROM
 FROM

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0024H.
 0030H.
 0060H.
 0048H.

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Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 220 - 1
 220
 20
 220-1

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Microprocessor
The microprocessor issues ALE during first T-state of

 every machine cycle
 memory READ cycle only
 fetch cycle only
 memory WRITE cycle only

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