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Microprocessor

Microprocessor
During OPCODE fetch the state of S0 and S1 is

 11
 10
 01
 00

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Microprocessor
A microcomputer consists of

 I/O device
 memory
 a microprocessor
All of these

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 TRAP
 RST 5.5
 INTR
 RST 7.5

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Microprocessor
Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor?

 (II) & (III)
 (I) & (II)
 (I) only
 (I) ,(III) & (IV)

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

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

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Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 18
 8
 12
 16

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