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Microprocessor

Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 512
 256
 285
 65536

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 68000
 6502
 8085
 Z-80

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 6
 10
 4
 8

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

 Stack Pointer
 D-E
 PSW
 B-C

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 10
 13
 7
 16

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Microprocessor
Which of the following instruction will never affect the zero flag?

 DCR R
 ORA R
 XRA R
 DCX Rp

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