Acer TravelMate 270 TravelMate 270 Service Guide - Page 34

Parallel Port Item Supports ECP/EPP/Bi-directional (PS/2 compatible) Optional ECP DMA channel (in BIOS Setup) Optional parallel port I/O address (in BIOS Setup) Optional parallel port IRQ (in BIOS Setup) Specification Yes (set by BIOS setup) Note: When Mode is selected as EPP mode, "3BCh" will not be available. DMA channel 1 378h, 278h, 3BCH IRQ7, IRQ5 USB Port Item USB Compliancy Level OHCI Number of USB port Location Serial port function control Specification 1.1 USB 1.1 3 Rear side Enable/Disable by BIOS Setup PCMCIA Port Item PCMCIA controller Supports card type Number of slots Access location Supports ZV (Zoomed Video) port Supports 32 bit CardBus Specification ENE CB1420 CardBus controller Type-III/II One type-III or Two type-II Right panel No ZV support Yes (IRQ11) System Board Major Chips Item System core logic Super I/O controller Audio controller Video controller Hard disk drive controller Keyboard controller RTC Controller SiS650+SiS961(SB) SMC LPC47N227 Integrated Software Audio in SiS961 South Bridge with Realtek ALC202 AC97 Codec(No SPDIF) Integrated VGA chip in SiS650 North Birdge ICH2 NS87591 ICH2 Keyboard Item Keyboard controller Keyboard vendor & model name Total number of keypads Windows logo key Internal & external keyboard work simultaneously Specification NS87591 Chicony 87/88/89 keys with 101/102 key emulation Yes Yes Chapter 1 29