Taiwan Commate Computer Inc. PV-DDR User Manual page 32

3.5.8 Onboard Serial Port 1 & 2
Select an address and corresponding interrupt for the first/second serial
port. The default value for the first serial port is "3F8/IRQ4" and the
second serial port is "2F8/IRQ3".
3.5.9 UART Mode Select & UR2 Duplex Mode
This item defines the operation of serial port 2. In the Normal setting,
serial port 2 is assigned to the external COM2 connector. If you have
installed an optional infrared port, you must change the setting of this
item to one of the Infrared settings (usually IrDA). These settings will
disable the external COM2 serial port connector and assign the resources
to the infrared device. If you have selected an IR mode, use the following
item UR2 Duplex Mode to define if the IR port is full duplex or half
duplex.
3.5.10 Onboard Parallel Port
Select address and interrupt for the Parallel port.
3.5.11 Parallel Port Mode
Select an operating mode for the parallel port. Mode options are SPP,
EPP, ECP, ECP+EPP.
3.5.12 ECP Mode Use DMA
Select a DMA channel if parallel Mode is set as ECP, ECP+EPP.
3.5.13 Game Port Address
This field can set Disabled or assign an I/O Base address for game port.
3.5.14 Midi Port Address
This field can set Disabled or assign an I/O Base Address for the MIDI port.
3.5.15 Midi Port IRQ
This item is used to select IRQ for the MIDI port.