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?
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
EXAMIANS