While using a frequency counter for measuring frequency, two modes of measurement are possible: Period time Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4MHz, the crossover frequency is given by

Microprocessor
While using a frequency counter for measuring frequency, two modes of measurement are possible: Period time Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4MHz, the crossover frequency is given by

8 Mhz.

2 Mhz.

2 Khz.

1Khz.

8 Mhz.

2 Mhz.

2 Khz.

1Khz.

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Microprocessor
In 8085 microprocessor, in response to RST 7.5 interrupts the execution is transferred to memory location

0000H

002CH

0034H

003CH

0000H

002CH

0034H

003CH

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Microprocessor
The output data lines of microprocessor and memories are usually tristated because

It increases the speed of data transfer over the data bus

More than one device can transmit information over the data bus by enabling only one device at a time

More than one device can transmit over the data bus at the same time

The data line can be multiplexed for both input and output

It increases the speed of data transfer over the data bus

More than one device can transmit information over the data bus by enabling only one device at a time

More than one device can transmit over the data bus at the same time

The data line can be multiplexed for both input and output

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Microprocessor
Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

A is wrong R is correct

A is correct R is wrong

Both A and R are correct but R is not correct explanation of A

Both A and R are correct and R is correct explanation of A

A is wrong R is correct

A is correct R is wrong

Both A and R are correct but R is not correct explanation of A

Both A and R are correct and R is correct explanation of A

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Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

ORA A

MOV A, 00H

SUB A

CLR A

ORA A

MOV A, 00H

SUB A

CLR A

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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

1,2 & 3

2,3&4

1,3 &4

1,2 & 4

1,2 & 3

2,3&4

1,3 &4

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Microprocessor

Microprocessor In 8085 microprocessor, in response to RST 7.5 interrupts the execution is transferred to memory location

Microprocessor The output data lines of microprocessor and memories are usually tristated because

Microprocessor Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

Microprocessor Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

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
In 8085 microprocessor, in response to RST 7.5 interrupts the execution is transferred to memory location

Microprocessor
The output data lines of microprocessor and memories are usually tristated because

Microprocessor
Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

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?