Acer TravelMate 270 TravelMate 270 Service Guide - Page 41
DMA Channel Assignment, IRQ Assignment Map, Secondary IDE controller CD-ROM drive
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IRQ Assignment Map IRQ04 IRQ05 IRQ06 IRQ07 IRQ08 IRQ09 IRQ10 IRQ11 IRQ12 IRQ13 IRQ14 IRQ15 Interrupt Channel DMA Channel Assignment DMA Channel 00 01 02 03 Function(Hardware) Communications Port (COM1) PCI AUDIO/MODEM Standard Floppy Disk Controller ECP Printer Port (LPT1) Real Time Clock SCI LAN/Universal Serial Bus PCMCIA/VGA Mouse Numeric data processor Primary IDE controller (hard disk) Secondary IDE controller (CD-ROM drive) Function(Hardware) PnP Audio System CODEC Free Standard Floppy Disk Controller ECP Printer Port (default) 36 Chapter 1