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Microprocessor

Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 16
 6
 2
 8

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 serial I/O is not possible
 serial I/O is possible through SIM and RIM instruction
 there is a pin available for serial output
 there is a pin available for serial input

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Microprocessor
A combinational PLD with a programmable AND array and a fixed OR array is called a

 PLA
 PAL
 PROM
 PLD

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Microprocessor
During which T-state, contents of OP code from memory are loaded into IR (Instruction Register)?

 T2 OP code fetch
 T1 OP code fetch
 T3 OP code fetch
 T4 OP code fetch

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Microprocessor
Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?

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

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 6
 5
 4
 3

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