User`s guide

Chapter 2 Customizing Your Touchscreen Environment 39
Although the jumpers on the PC Bus touchscreen controller can be
set for COM1–COM8 ports, TouchWare for Windows NT only
supports COM1–COM4 ports with the PC Bus touchscreen
controller.
When you choose a COM port, the control program automatically
assigns the base address and IRQ. If these values do not match your
configuration, select Custom and enter the correct address and IRQ.
Setting the Interrupt Request and Base Address
The control program automatically assigns the base address and IRQ
when you choose a COM port. Table 3 lists the standard addresses
and IRQs assigned by the Setup program for each COM port.
If these values do not match your configuration, select Custom and
enter the correct address and IRQ for your configuration. You can
also specify a non-standard address if used by your configuration.
Table 3. COM Port IRQs and Addresses Used by the Setup Program
COM Port IRQ Address Comment
COM1 4 3F8 —
COM2 3 2F8 —
COM3 5 3E8 Uses IRQ5, not IRQ4.
COM4 2 2E8 Uses IRQ2, not IRQ3.
COM5 — 2E0 —
COM6 — 2F0 —
COM7 — 3E0 —
COM8 — 3F0 —