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Microprocessor

Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8257.
 8212.
 8255.

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

 PSW
 D-E
 B-C
 Stack Pointer

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Microprocessor
Register pair used to indicate memory

 W and Z
 B and C
 H and L
 D and E

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

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

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Microprocessor
In 8085, the pins for SID and SOD are

4 and 3 respectively
4 and 5 respectively
5 and 4 respectively
3 and 4 respectively

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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

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

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