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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 3 bytes
 2 bytes
 1 bytes
 4 bytes

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Microprocessor
An 8-bit microprocessor can have ………….. address lines.

 8
 16
 32
 cannot be predicted

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

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

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Microprocessor
Pick up the programmable interrupt controller from the following

 8279
 8257
 8259
 8275

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is negated, S is asserted
R is asserted, S is negated
R is asserted, S is asserted
R is negated, S is negated

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Microprocessor
When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are

 not affected
 always set
 affected indicating specific conditions
 always reset

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