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Microprocessor

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

Sets
Can not change
Complements
Clears

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 6
 3
 5
 4

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 XRI 0FH
 ANI 0FH
 CMA
 ORI 0FH

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Microprocessor
The stack pointer

 may be in RAM or ROM
 resides in microprocessor
 resides in RAM
 resides in ROM

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Microprocessor
Which memory has read operation, byte erase, byte write and chip erase?

Both B and C
RAM
UVEPROM
EEPROM

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 11000100
 01000000
 010001000
 00000100

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