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Microprocessor

Microprocessor
During OPCODE fetch the state of S0 and S1 is

 01
 10
 11
 00

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Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8212.
 8257.
 8255.

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 SIM
 RIM
 DI
 EI

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Microprocessor
Which language could be used for programming an FPGA.

 Both A and B
 VHDL
 Verilog
 None

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Microprocessor
Which one of the following ICs is used to interface keyboard and display?

 8259
 8279
 8251
 8253

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

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