Q. The instruction that is used to store the environment of the coprocessor to a destination memory location is

View solution

Q. The instruction that is the NOP instruction of the coprocessor is

View solution

Q. The 8089 shares the system bus and memory with the host CPU in

View solution

Q. The 8089 communicates with the host CPU using bus arbiter and controller in

View solution

Q. The number of address lines used by the I/O processor in 8089 is

View solution

Q. The IO device that can be interfaced with 8089 is

View solution

Q. In the 8089 architecture, the address of memory table for channel-2 is calculated by

View solution

Q. Which of the following is not a general purpose register of 8089?

View solution

Q. The registers that are used as source and destination pointers during DMA operations are

View solution

Q. The pin that is used for data transfer control and operation termination signals is

View solution

Q. The pin that is used to inform the CPU that the previous operation is completed is

View solution

Q. The current channel status of program status word contains

View solution

Q. Which of the following is an incorporated function to resolve interprocessor communication problems?

View solution

Q. The device that deals with the bus access control functions and bus handshake activities is

View solution

Q. The clock generator delays the READY signal until the signal _________ goes low.

View solution

Q. The bus controller relinquishes the bus if

View solution

Q. The signals that are used by the bus arbitration in the independent request method is

View solution

Q. The signal that is used to drive a priority resolving network that actually accepts the bus request inputs is

View solution

Q. Which of the following is the simplest and cheapest method of bus arbitration?

View solution

Q. The method of bus arbitration that does not contain priority resolving network in it is

View solution