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3-4 Smartio C168H/PCI User’s Manual
10. Select a COM number for the specific port from Port Number pull-down list.
Note! Step 11 is optional, if you want to assign COM numbers to ports
manually.
11. Check Auto Enumerating COM Number check-box then the subsequent
ports are mapped to continuous COM numbers. For example, if COM 3 is
assigned to Port 1, then COM 4 will be automatically assigned to Port 2.
Note! You may skip Step 12 to 15, if the system doesn’t require a
special performance tuning.
12. Select an Rx FIFO Trigger from Rx FIFO Trigger pull-down list.
Rx FIFO trigger levels, at 1, 4, 8 or 14 bytes, are available, and the default
value is 14 bytes.