Acer 270 Laptop User Manual


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