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Microprocessor

Microprocessor
A field programmable ROM is called

 MROM
 PROM
 FPROM
 FROM

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 16
 10
 7
 13

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Microprocessor
Which of the following is not a general purpose peripheral?

Programmable CRT controller
Programmable interrupt controller
I/O port
Programmable interval timer

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit B has more gates than circuit A
Circuit A has the same number of gates as circuit B
Circuit A has more gates than circuit B
None of these

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 all bits set (i.e. FFH)
 all bits reset (i.e. 00H)
 same as the content of A7-A0
 irrelevant

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Microprocessor
Pick out the matching pair

 S0;S1;wait status
 HOLD; DMA
 READY; RIM
 SID; SIM

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