User`s manual

3-28 Smartio C168H/PCI User’s Manual
the Smartio C168H/PCI port mapping.
Note! Skip Step 5 if you would like to manually assign COM numbers to
the ports.
5. Check the Auto Enumerating COM Name checkbox to assign consecutive
COM numbers for subsequent ports. For example, if COM 3 is assigned to Port 1,
then COM 4 will be automatically assigned to Port 2.
Note! Skip Steps 6 and 7 if the system does not require special
performance tuning.
6. Re-assign the Rx FIFO Trigger by selecting a number from the pull-down list.
Check the Set the change to all ports checkbox if you would like to apply this
setting to all ports.
The available Rx FIFO trigger levels are 1, 4, 8, and 14 bytes, with the default
value set at 14 bytes.
7. Re-assign the Tx FIFO Size by selecting a number from the pull-down list. Make
sure the Set the change to all ports checkbox is checked if you would like to
apply this setting to all ports.