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Microprocessor

Microprocessor
Length of the instruction POP D is

 1 byte
 2 byte
 3 byte
 4 byte

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Decoder
Gate
Mux
Register

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

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

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

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

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for the I/O device
 direct memory access for the user
 direct memory access for microprocessor
None of these

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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
 There are 16 address lines
 It counts 16-bits at a time
 It facilitates the user storing 16-bit data temporarily

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