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Microprocessor

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

RAM
Both B and C
EEPROM
UVEPROM

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Microprocessor
The address bus of any microprocessor is always

 Either unidirectional or bi-directional
 Unidirectional
 Bi-directional
 None

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 there is a pin available for serial output
 serial I/O is possible through SIM and RIM instruction
 there is a pin available for serial input
 serial I/O is not possible

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Microprocessor
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

Greater than
The same as
Cannot be determined
Less than

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Microprocessor
DMA is used between

 microprocessor and memory
 microprocessor and I/O
 none
 memory and I/O

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Microprocessor
In an intel 8085A, which is the first machine cycle of an instruction?

 A memory write cycle
 A memory read cycle
 An op-code fetch cycle
 An I/O read cycle

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