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Microprocessor

Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

OR-NAND
NOR-NAND
NAND-NOR
NAND-NAND

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

 640ns
 960ns
 1280ns
 320ns

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Microprocessor
While STC instruction executes,

 only carry and zero flags will be affected.
 only carry flag will be affected.
 no flags will be affected.
 all flags will be affected.

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Microprocessor
Length of the instruction POP D is

 3 byte
 2 byte
 1 byte
 4 byte

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

 B-C
 D-E
 PSW
 Stack Pointer

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 increment by two
 decrement by two
 remain unaffected
None of these

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