Question

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

(a) BREQ (active low)

(b) BPRN (active low)

(c) CBRQ (active low)

(d) BPRO (active low)

The question was posed to me by my college professor while I was bunking the class.

My question is from Bus Arbitration and Control in section Multimicroprocessor Systems of Microprocessor

Answer 1

Right choice is (a) BREQ (active low)

The explanation is: The BREQ (active low) is used to drive a priority resolving network that actually accepts the bus request inputs from all the masters and derives the priority outputs which further drive the BPRN (active low) inputs of all the masters.