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Microprocessor

Microprocessor
Pick up the programmable interrupt controller from the following

 8259
 8257
 8275
 8279

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Microprocessor
PSW stands for

 none
 accumulator and flag register contents
 flag byte
 accumulator contents

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Microprocessor
Each instruction in an assembly language program has the following fields 1. Label field 2. Mnemonic field 3. Operand field 4. Comment field What are the correct sequence of these fields?

 1, 2, 3 and 4
 1, 3, 2 and 4
 2, 4, 1 and 3
 2, 1, 4 and 3

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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

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

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Microprocessor
The characteristics of RESET OUT signal is/are

 the signal is synchronized to the processor clock.
 all.
 this signal can be used to reset other devices.
 indicates that µp is being reset.

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