Acer 270 User Manual
Page 34
Chapter 1
29
Supports ECP/EPP/Bi-directional (PS/2
compatible)
Yes (set by BIOS setup)
Note
: 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
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