Acer TravelMate 520 TravelMate 520 Service Guide - Page 39

Onboard Device Configuration The parameters in this screen are for advanced users only. You do not need to change the values in this screen because these values are already optimized. The Onboard Device Configuration screen assigns resources to basic computer communication hardware. The following table describes the parameters in this screen. Settings in boldface are the default and suggested parameter settings. Parameter Serial Port IrDA FIR Port Parallel Port Description Options Enables or disables the serial port. When enabled, you can set the base I/O address and interrupt request (IRQ) of the serial port. Enabled or Disabled 3F8h, 3E8h, 2F8h or 2E8h 4 or 11 Enables or disables the infrared port. When enabled, you can set the base I/O address and interrupt request (IRQ) and direct memory access (DMA) channel of the infrared port. Disabled or Enabled Enables or disables the parallel port. When enabled, you can set the base I/O address, interrupt request (IRQ) and operation mode of the parallel port. If operation mode is set to ECP, the direct memory access (DMA) channel of the parallel port is set to 1. Enabled or Disabled 378h, 278h, or 3BCh 7 or 5 Bi-directional, ECP, EPP or Standard Chapter 2 33