Answer Posted / santosh

1> Direct addressing mode
2> Indirect addressing mode
3> Immediate addressing mode
4> Register direct addressing mode
5> Register indirect addressing mode
6> Auto increment & decrement mode

How much total external data memory that can be interfaced to the 8051?

1163

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what is logical address?

921

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what are the advantages of modular proramming techniques

1036

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Explain what type of architecture is used in 8085 microprocessor?

923

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If a1M1× DRAM requires 4 ms for a refresh and has 256 rows to be refreshed, no more than __________ of time must pass before another row is refreshed.

1259

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Define crossbar switching with reference to 8086?

953

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what is program counter?

1080

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Explain memory mapped i/o and i/o mapped i/o schemes?

1275

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Indicate different machine cycles of 8085?

1069

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Define byte?

1051

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What is address bus, data bus and control bus in microprocessor 8051 ?

1103

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What type of instruction is cpi ‘c’ and define the action it performs?

1102

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What all does a microprocessor comprise of?

1044

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What is the operating frequency of 8085?

1063

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Give an example of one address microprocessor?

1169

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