Question

The unit that provides and controls the interface, between the internal 80287 bus and 80286 bus via data buffer is

(a) bus control logic

(b) data interface and control unit

(c) floating point unit

(d) none of the mentioned

This question was addressed to me during an online exam.

My question comes from 80287 Math Coprocessor -1 in chapter 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

Answer 1

Correct answer is (a) bus control logic

To explain: The bus control logic provides and controls the interface, between the internal 80287 bus and 80286 bus via data buffer.