© National Instruments | 2-13
RMC-8357 User Manual
IOU0 (II0 PCIe Port 2)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by the user.
The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
PORT 2A Link Speed
Use this item to configure the link speed of a PCI-E port specified by the user. The options
are Gen 1 (Generation 1) (2.5 GT/s), Gen 2 (Generation 2) (5 GT/s) and
Gen 3 (Generation 3) (8 GT/s).
IOU1 (II0 PCIE Port 3)
Use this item to configure the PCI-E port Bifuraction setting for a PCI-E port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
PORT 3A Link Speed
Use this item to configure the link speed of a PCI-E port specified by the user. The options are
Gen 1 (Generation 1) (2.5 GT/s), Gen 2 (Generation 2) (5 GT/s) and Gen 3 (Generation 3)
(8 GT/s).
PCI-E Completion Timeout
Select Enable for PCI-E Completion Timeout support for electric tuning. The options are
Enable and Disable.
PCI-E Completion Timeout Value
Use this item to set the PCI-E Completion Time-out value for electric tuning. Enter a value
between 260 ms to 900 ms.
IOAT Configuration
Enable I/OAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology), which significantly reduces
CPU overhead by leveraging CPU architectural improvements and freeing the system resource
for other tasks. The options are Enable and Disable.
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are Disable and
Enable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support which will allow certain transactions to
violate the strict-ordering rules of PCI and to be completed prior to other transactions that have
already been enqueued. The options are Disable and Enable.
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