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Network on chip router design

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anbuchozhan

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In NETWORK ON CHIP i am going to design a efficient router by modify the arbiter, can anyone tell where to start and what type of arbiter to use....advance thanks for reply
 

thank u 4 tis doc.can u tell wen v use round robin and priority arbiter and how we switch from one to other in design........
 

wen v use round robin and priority arbiter
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In order to decide, you must have information. The information you need is the pros and cons of both round robin and fixed priority (based on that you will know when you will need a certain type of arbiter). Also you have also to know what is the design requirements of the network. Therefore, you have to try to search on Google to find the information and then make your decision on which one to implement.

That's how I think a way of making decisions.

Thanks.
 

Basically arbiter design should depend on network complexity and topology.

If Your target is a small network with a fixed number of end points (rather small traffic rate), I would recommend fixed-prio arbiter module where the processing queue is based on hoop-count (number of nodes passed) and a simple FIFO register for packets of equal priority.

Round robin is more complex in terms of implementation (time sharing between packets of the same importance) and targets larger networks with higher traffic rates.
 

thank u....can u tell about design of masked round robin arbiter,and what is round robin pointer and how to implement this
 

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