Teledyne LeCroy Summit Z2-16 PCI Express Multi-lane Exerciser User Manual - Manual (Page 49)

Summit Z2-16 Exerciser User Manual Chapter 4: Traffic Generation
Teledyne LeCroy
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Parameter Values Default Comment
AckNak Policy Auto
Ack
Nak
Disable Auto Auto: Automatic ACK/NAK DLLP generation for
received TLP packets (default).
Ack: Always ACK received TLP packets
Nak: Always NAK received TLP packets
Disable: Disable automatic ACK/NAK DLLP
generation.
TLP Policy
AutoSeqNumber Yes
No Yes If not set, overrides automatic generation of the TLP
sequence number and uses user-defined value of the
field in the Packet=TLP commands.
This option overrides any sequence numbers
specified in the script.
TLP Policy
AutoGenerate LCRC Yes
No Yes If not set, overrides automatic generation of LCRC
and uses user-defined value of the field in the
Packet=TLP commands.
This option overrides any LCRC specified in the script.
TLP Policy
ReplayTimer In ns 
(rounded to
nearest 8)
Off
4200 Timeout in TLP transmitter path that counts time since
last Ack or Nak DLLP is received.
If set, automatically retransmit TLPs that were NAKed
or on replay timer expiration.
TLP Policy
AutoRetrain Yes
No Yes If set, enable automatic retraining of the link in case
the number of retransmitted TLP is 4.
Valid only when AutoRetransmission is set.
Automatic Tag
Generation Yes
No No Disable automatic tag generation.
Prevents the Exerciser from automatically inserting a
tag.
Tags are a sub-field of the transaction ID field.
When auto tag insertion is enabled, the tag field is
only modified for non-posted transactions such as
CfgRd, CfgWr, and MemRd.
Options are:
Use lower 5-bit of Tag field. Zero out higher 3 bits.
Use 8-bit of Tag field.