System Design Bus

1. Type of Bus

• Dedicated: Data Bus and Address Bus has a separate line, the design is more expensive and the data transfer rate is higher.
• Multiplexed: Line Data and Address rolled into one, plan cheaper and the data transfer rate is slower.

 

  

 

     

 2. Method arbitration

• Centralized.
• Distributed.

 3. Timing

• Synchronous.
• Asynchronous.

 4. Bus width

• Address
• Data 

 5. Type of data transfer

• write.
• Read.
• Read modify write.
• Read after write.
• Block.