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Following selection is all controled by the BIOS:
ECP Mode DMA Channel Select by BIOS
printer Port Address and IRQ Select by BIOS
(378h/3BC with IRQ7, 278h with IRQ5.)
Printer and IEEE 1284 cable
The IEEE 1284 compliant cables have better features on the following:
Twisted pairs of conductors
Full foil shield
Wire braid
Controlled impedance -- 62 ohm
Limited cross-walk
With these features will guarantee the IEEE 1284 cable perform at much
higher bandwidth rates that the fast Centronics, EPP and ECP modes
perform at.
If you are using the ordinary parallel cables running at the EPP or ECP
mode that this controller provided, you may experience that the data efforts.
2.8.3 Serial Port
The serial port is using the data in serial transfer. Because it transfer data
input/ output by bit per unit, the speed is slower than a parallel port. This ofen
use in serial mouse, serial printer, fax modem…etc. This provides a 16550
compatible serial port and this is faster in transfer speed than a traditional
16450 compatible serial port.
The Serial 1 & Serial 2 are 2 x 5 pin box header connector. This motherboard
package provides 9 and 25 pin male converter cable for flexible purpose use.
PCI
Serial 1 Serial 2
J10 J12