Teledyne LeCroy PETracer Summit and Summit T2-16 PCIe User Manual - Manual (Page 89)

Summit User Manual Chapter 5: Reading CATC Traces
Teledyne LeCroy
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5.11 Decoding Traffic
The PETracer software has three decode levels:
Packet
Packet level decode includes all TLP packets, DLLP packets, and all ordered sets.
Link
Link level decode is composed of TLP packets matched with a corresponding ACK
or NAK coming from the opposite direction.
Split
Split level decode is composed of two Link transactions, the Request TLP and the
Completion TLP from the other direction.