DMA signal/signals in 8085 is/are

Microprocessor
DMA signal/signals in 8085 is/are

All.

HOLD.

HLDA.

READY.

All.

HOLD.

HLDA.

READY.

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Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234

6 AFH

45 H

64 H

234

6 AFH

45 H

64 H

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Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

1,2 & 4

2,3&4

1,3 &4

1,2 & 3

1,2 & 4

2,3&4

1,3 &4

1,2 & 3

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Microprocessor
Program counter in a digital computer

Counts the number of times the loops are executed.

Counts the number of times a subroutine is called.

Counts the numbers of programs run in the machine.

Points the memory address of the next instruction to be fetched.

Counts the number of times the loops are executed.

Counts the number of times a subroutine is called.

Counts the numbers of programs run in the machine.

Points the memory address of the next instruction to be fetched.

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Microprocessor
Which one of the following statement is false?

A microprocessor has bi-directional data bus

A microprocessor has unidirectional address bus

A microprocessor has bi-directional address bus

A microprocessor has an ALU

A microprocessor has bi-directional data bus

A microprocessor has unidirectional address bus

A microprocessor has bi-directional address bus

A microprocessor has an ALU

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Microprocessor
Cycle stealing mode of DMA operation involves

DMA controller taking over the address, data and control buses while a block of data is transferred between memory and I/O device

The DMA control waiting for the microprocessor to finish execution of the program and then takes over the buses

Data transfer takes place between the I/O device and memory during every alternate clock cycle

While the microprocessor is executing a program an interface circuit takes over control of address, data, control buses when not in use by microprocessor

DMA controller taking over the address, data and control buses while a block of data is transferred between memory and I/O device

The DMA control waiting for the microprocessor to finish execution of the program and then takes over the buses

Data transfer takes place between the I/O device and memory during every alternate clock cycle

While the microprocessor is executing a program an interface circuit takes over control of address, data, control buses when not in use by microprocessor

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Microprocessor

Microprocessor DMA signal/signals in 8085 is/are

Microprocessor Which of the following is not treated as hexadecimal constant by assembler in 8085?

Microprocessor I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

Microprocessor Program counter in a digital computer

Microprocessor Which one of the following statement is false?

Microprocessor Cycle stealing mode of DMA operation involves

Microprocessor
DMA signal/signals in 8085 is/are

Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

Microprocessor
Program counter in a digital computer

Microprocessor
Which one of the following statement is false?

Microprocessor
Cycle stealing mode of DMA operation involves