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Microprocessor

Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 10
 16
 7
 13

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Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 Memory bus
 Address bus
 Control bus
 DMA bus

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Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 16
 5
 8

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Microprocessor
SUB A instruction in 8085

 reset carry and sign flags
 sets zero and sign flags
 reset zero and parity flags
 sets zero and carry flags

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Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

 RST 6.5
 both ‘a’ and ‘b’
 RST 5.5
 TRAP

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

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

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