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Microprocessor

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

 65536
 512
 285
 256

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Microprocessor
The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is

 IC = FC + 2EC
 IC = FC - EC
 IC = FC + EC
 EC = IC + FC

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Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234
64 H
6 AFH
45 H

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Microprocessor
While STC instruction executes,

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

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Microprocessor
A microprocessor without the interrupt facility

 is not useful for process control system
 is best suited for process control system
 cannot be used for DMA operation
 cannot be interfaced with any I/O devices

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Microprocessor
In 8085 name/names of the 16 bit registers is/are

 program counter.
 both A and B.
 stack pointer.
 none of these.

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