Visible to Intel only — GUID: mwh1409958922313
Ixiasoft
Visible to Intel only — GUID: mwh1409958922313
Ixiasoft
3.2.1.5. Timing Adapter
Condition |
Adaptation |
---|---|
The source has ready, but the sink does not. |
In this case, the source can respond to backpressure, but the sink never needs to apply it. The ready input to the source interface is connected directly to logical 1. |
The source does not have ready, but the sink does. |
The sink may apply backpressure, but the source is unable to respond to it. There is no logic that the adapter can insert that prevents data loss when the source asserts valid but the sink is not ready. The adapter provides simulation time error messages if data is lost. The user is presented with a warning, and the connection is allowed. |
The source and sink both support backpressure, but the sink’s ready latency is greater than the source's. |
The source responds to ready assertion or deassertion faster than the sink requires it. The number of pipeline stages equal to the difference in ready latency are inserted in the ready path from the sink back to the source, causing the source and the sink to see the same cycles as ready cycles. |
The source and sink both support backpressure, but the sink’s ready latency is less than the source's. |
The source cannot respond to ready assertion or deassertion in time to satisfy the sink. A FIFO whose depth is equal to the difference in ready latency is inserted to compensate for the source’s inability to respond in time. |