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Microprocessor

Microprocessor
The word size of 8085 microprocessor is

 4-bit
 20-bit
 8-bit
 16-bit

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Microprocessor
For a memory with a 16-bit address space, the addressability is

2^16 bits
8 bits
Cannot be determined
16 bits

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

 Stack Pointer
 PSW
 B-C
 D-E

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is negated, S is asserted
R is asserted, S is negated
R is asserted, S is asserted
R is negated, S is negated

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 0FFF H and 0FFE H
 0FFE H and 0FFF H
 1000 H and 0FFF H
 1000 H and 1001 H

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Microprocessor
DMA is used between

 microprocessor and I/O
 memory and I/O
 microprocessor and memory
 none

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