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Microprocessor

Microprocessor
When the write enable input is not asserted, the gated D latch _________ its output.

Complements
Can not change
Clears
Sets

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 remain unaffected
None of these
 decrement by two
 increment by two

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 10
 6
 8
 4

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Microprocessor
Pick out the matching pair

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

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Microprocessor
Identify the non-programmable interfacing device from the following

 8257.
 8212.
 8295.
 8255.

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

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