| 1. | In 8085 the data is stored in the stack on ? | |
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First in First Out basis
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Last in First Out basis
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First in Last Out basis
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Last in Last Out basis
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Report Question| 2. | In memory mapped I/O means that ? | |
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an input or output device is treated by the microprocessor as one memory location
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input or output devices are treated as distinct
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an address on the address bus may refer either to a memory location or to an I/O device
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none of the above
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| 3. | In 8085, the pins for SID and SOD are ? | |
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4 and 5 respectively
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5 and 4 respectively
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3 and 4 respectively
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4 and 3 respectively
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| 4. | In 8085 the pins for + 5 V input and ground are ? | |
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20 and 40 respectively
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40 and 20 respectively
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1 and 2 respectively
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1 and 1 respectively
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| 5. | An instruction using immediate addressing mode in 8085 is ? | |
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2 bytes long
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3 bytes long
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2 or 3 bytes long
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1 or 2 or 3 bytes long
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| 6. | Which interrupt has the highest priority ? | |
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INTR
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TRAP
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RST 6.5
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RST 5.5
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| 7. | In 8085 name the 16 bit registers ? | |
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Stack pointer
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Program counter
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Accumulator
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a & b
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| 8. | Which stack is used in 8085 ? | |
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FIFO
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LIFO
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FILO
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None
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| 9. | What is meant by Maskable interrupts ? | |
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An interrupt which can never be turned off
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An interrupt that can be turned off by the programmer
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An interrupt that can be turned off sometimes
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none
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| 10. | What does microprocessor speed depends on ? | |
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Clock
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Data bus width
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Contol bus width
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Address bus width
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