1. Jeff Brinkhus Lei Jiang
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Jeff Brinkhus
Lei Jiang

2. Mechanism 1 Buffer Buffer Internal Buffer Internal Buffer 2 4 3 P2S
S2P
Move data from internal buffer of S2P.
So, the buffer is FULL!
But, the internal buffer of S2P is empty.
Data at (1, 2, 3, 4) are safe!!!
When FULL, STOP! P2S can’t get data from the first buffer.

3. Simulation Waveform

4. Simulation Waveform

5. Simulation Waveform

6. Simulation Waveform

7. Simulation Waveform

8. Simulation Waveform

9. Problem
Now, we assume S2P passes Buffer2_FULL signal to P2S side. (connect directly)
But, is it all right?
Long distance link.
One direction communication. Another copy?
The solution or new assumption.