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Microprocessor

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

 Stack Pointer
 D-E
 PSW
 B-C

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Microprocessor
DMA signal/signals in 8085 is/are

 All.
 HOLD.
 READY.
 HLDA.

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Microprocessor
At the beginning of a fetch cycle, the contents of the program counter are

 transferred to address bus.
 transferred to memory address register .
 transferred to memory data register.
 incremented by one.

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Microprocessor
The microprocessor may be made to exit from HALT state by asserting

 A or B or HOLD line
 any of the five interrupt lines
 RESTART
 READY line

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Microprocessor
An e-mail message can be sent to many recipients.

True
False

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

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

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