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Microprocessor

Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 B-C
 Stack Pointer
 D-E
 PSW

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 Stack Pointer
 PSW
 D-E
 B-C

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It has to fetch two 8-bit data at a time
 It counts 16-bits at a time
 There are 16 address lines
 It facilitates the user storing 16-bit data temporarily

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Microprocessor
The data bus of any microprocessor is always

 Bi-directional
 None
 Unidirectional
 Either unidirectional or bi-directional

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

The same as
Greater than
Cannot be determined
Less than

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

UVEPROM
EEPROM
Both B and C
RAM

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