Acer Altos 500 Altos 500 Service Guide - Page 74

Setting Enhanced Parallel Port (EPP) Extended Capabilities Port (ECP) Function Allows bidirectional parallel port operation at maximum speed Allows parallel port to operate in bidirectional mode and at a speed higher than the maximum data transfer rate ECP DMA Channel This item becomes active only if you select Extended Capabilities Port (ECP) as the operation mode. It allows you to assign DMA channel 1 or DMA channel 3 for the ECP parallel port function. Onboard Device Settings The Onboard Device Settings menu allows you to configure the onboard communication ports and the onboard devices. Selecting this option from the Onboard Peripherals menu displays the following screen: Onboard Device Settings Floppy Disk Controller Enabled ] IDE Controller Both ] PS/2 Mouse Controller Enabled ] USB Host Controller Disabled] USB Legacy Mode SMBus Interrupt(IRQ9 Disabled] Onboard Ethernet Chip Enabled ] Floppy Disk Controller This parameter lets you enable or disable the onboard floppy disk controller. 3-18 Altos 500 System Guide