Teledyne LeCroy Summit Z3-16 PCI Express Multi-lane Exerciser User Manual User Manual
Page 56
Teledyne LeCroy
Generation Options Dialogs Overview
56
Summit Z3‐16 PCI Express Multi‐Lane Exerciser User Manual
TABLE 4.4: Flow Control Generation Option Parameters
Note:
Currently the Summit Z3‐16 Exerciser does not support processing for nullified TLPs in the
receiver path. This test scenario should be avoided.
FCRx Parameter
Values
Default
Comment
Tx Flow Control
Do not send TLP
packet if credit
amount is
insufficient
Yes
No
Yes
When not set, the TLPs are being sent
without the regard of how many
credits are available.
This option prevents TLP
transmission if insufficient credits are
available.
Rx Flow Control
Periodically
schedule UpdateFC
DLLP
In ns
(rounded to nearest
8)
Off
4200
When enabled, allows automatic
updating of these DLLPs.
This option enables a periodic timer
that controls sending of UpdateFC
DLLPs. You should leave timer and
credit values to defaults for correct
behavior.
Initial Credits to Advertise
PH
0 to 255
1
Posted Request Headers
NPH
0 to 255
1
Non‐Posted Request Headers
CPLH
0 to 255
1
Completion Headers
PD
0 to 4095
1024
Posted Request Data Payload
NPD
0 to 4095
1
Non‐Posted Request Data Payload
CPLD
0 to 4095
1024
Completion Data Payload