FSM for a N/W Processor

[asicganesh]

I want to design a FSM that has to handle the below scenario:
1. A continuos stream of packets arrive with a start of Frame
2. As soon as Start of Frame is received.. I have to send it to the internal block until End of Frame is got..
3. If instead of End of Frame I get Start of Frame again I have to delete the frames got in between..
4. No FIFO or Memory should be used.
5. Frame is continuos from start to end.. no handshake.. no storage is possible.. and can be of any length..

Any idea? I want a bubble diagram for this case

 

[spauls]

Could you please provide more info on Strobes. I can help you in FSM design.

 

[asicganesh]

The Waveforms are as in the picture below.. I hope u wanted this..

 

[shiv_emf]

is the length of frame fixed ?

without fifo or registers ! u cant save frame data.

I have doubt. As u r sending frame data immediately after receiving SOF(start of frame) in case again SOF appears .. u want to retrive data or send some error signal ?

 

[asicganesh]

Shiv that's a good question..

you can't use any FIFO or registers or m/y to save Frame data..

If SOF appears again u need to reject the data..