Suppose a microprocessor has n registers.
a. How many control lines do you need to connect each register to all other registers?
b. How many control lines do you need if a bus is used?
Analysis:
a) Since there is a line connected between every 2 registers, for every one register, there should be (n-1) lines connected. So, for n registers, there should be (n-1)xn lines connected. However, considering that we double-count the lines needed between 2 registers, we actually need (n-1)x n/2 lines.
b) If a bus is used, register is only required to connect to the bus and no need to connect to other registers. So only n lines are needed.
You might also like to view...
Answer the following statement(s) true (T) or false (F)
1. Two-stroke power equipment engines are becoming more prominent in the power equipment engine industry. 2. Two-stroke engines in today’s power equipments are found primarily in small handheld units such as gas-powered blowers and string trimmers. 3. If the piston rings in a two-stroke engine are worn, the compression gauge displays a pressure reading that is higher than the manufacturer’s specification. 4. When looking at the reed valve assembly, there should be little to no air gap between the reed valve and the reed valve seat. 5. After an engine has been rebuilt, the engine should start within 10–15 pulls of the starter rope.
Describe how many species of wild animals, birds, and fish have become extinct in this country since colonial times
Explain what factors most commonly lead to extinction
What will be an ideal response??When using hydrochloric acid in an etch test, the welds are immersed in the reagent ____.
A. ?at room temperature B. ?at or near freezing C. ?at or near boiling temperature D. ?at 100 degrees Fahrenheit
Technician A says that LCDs may be slow to work at low temperatures. Technician B says that the LCD dash display can be damaged if pressure is exerted on the front of the display during cleaning. Who is right?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician