In 8257, if each device connected to a channel is assigned to a fixed priority then it is said to be in
A. rotating priority scheme
B. fixed priority scheme
C. rotating priority and fixed priority scheme
D. none of the mentioned
Answer:A
In 8257, if each device connected to a channel is assigned to a fixed priority then it is said to be in
A. rotating priority scheme B. fixed priority scheme C. rotating priority and fixed priority scheme D. none of the mentioned
Explanation: In this scheme, the DRQ3 has the lowest priority followed by DRQ2 and DRQ1. The DRQ0 has the highest priority.