Acer Aspire M5640 Service Guide for Aspire M1640 / M3640 / M5640 - Page 43

The following table describes the parameters found in this menu. Parameter Onboard FDC Controller Onboard Serial Port 1 UR2 Duplex Mode Onboard Parallel Port Parallel Port Mode ECP Mode used DMA Description Select Enabled if your system has a floppy disk controller (FDC) installed on the system board and you wish to use it. If you install an add-in FDC or the system has no floppy drive, select Disabled in this field. Select a logical COM port name and matching address for the serial port. Select an address and corresponding interrupt for the serial port. In an infrared port mode, this field appears. Full-duplex mode permits simultaneous tow-direction transmission. Half-duplex mode permits transmission in one direction only at a time. Select the value required by the IR device connected to the IR port. Select a logical LPI port address and corresponding interrupt for the physical parallel port. Select an operating mode for the onboard parallel (printer) port. This item allows users to manually set the DMA channel for ECP mode Options [Enabled]. [Disabled] [xxx+IRQx] [Normal], [EPP], [EPP], [EPP+ECP] 37