A high on RESET OUT signifies that

Microprocessor
A high on RESET OUT signifies that

all the registers and counters are being reset and this signal can be used to reset external support chip

all the registers and counters are being reset

all the registers of the CPU are being reset

processing can begin when this signal goes high

all the registers and counters are being reset and this signal can be used to reset external support chip

all the registers and counters are being reset

all the registers of the CPU are being reset

processing can begin when this signal goes high

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Cycle stealing mode of DMA operation involves

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

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

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

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

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

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

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

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

010001000

01000000

11000100

00000100

010001000

01000000

11000100

00000100

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Identify the communication interfacing device from the following

8255

8257

8251

8155

8255

8257

8251

8155

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
The address bus of any microprocessor is always

Bi-directional

Either unidirectional or bi-directional

None

Unidirectional

Bi-directional

Either unidirectional or bi-directional

None

Unidirectional

ANSWER DOWNLOAD EXAMIANS APP

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

CLR A

SUB A

MOV A, 00H

ORA A

CLR A

SUB A

MOV A, 00H

ORA A

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor

Microprocessor A high on RESET OUT signifies that

Microprocessor Cycle stealing mode of DMA operation involves

Microprocessor Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

Microprocessor Identify the communication interfacing device from the following

Microprocessor The address bus of any microprocessor is always

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

Microprocessor
A high on RESET OUT signifies that

Microprocessor
Cycle stealing mode of DMA operation involves

Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

Microprocessor
Identify the communication interfacing device from the following

Microprocessor
The address bus of any microprocessor is always

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