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Microprocessor

Microprocessor
Pick up the programmable interrupt controller from the following

 8257
 8259
 8279
 8275

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

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

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Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 XRI FOH
 ANI F0H
 XRI 0FH
 ANI OFH

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 logical interrupts
 software interrupts
 hardware interrupts
 conditional interrupts

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Microprocessor
The ROM programmed during manufacturing process itself is called

 MROM
 PROM
 EEPROM
 EPROM

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

64 H
45 H
234
6 AFH

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