To inform 80387 that the CPU wants to communicate with NPS1, the NPS1 line is directly connected to
A. A31
B. A30
C. M/IO
D. D31
Answer:C
To inform 80387 that the CPU wants to communicate with NPS1, the NPS1 line is directly connected to
A. A31 B. A30 C. M/IO D. D31
Explanation: The NPS1 and NPS2 lines are directly connected with M/IO and A31 respectively, to inform 80387 that the CPU wants to communicate with it (NPS1), and it is using one of the reserved I/O addresses for 80387 (NPS2).