Acer 270 manual Parallel Port, USB Port, PCMCIA Port, System Board Major Chips, Keyboard

Models: 270

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USB Port

Parallel Port

Item

 

 

 

Specification

 

 

 

 

 

Supports ECP/EPP/Bi-directional (PS/2

 

Yes (set by BIOS setup)

compatible)

 

 

: When Mode is selected as EPP mode, “3BCh” will not be

 

 

 

Note

 

 

 

 

available.

 

Optional ECP DMA channel (in BIOS Setup)

DMA channel 1

 

Optional parallel port I/O address (in BIOS

378h, 278h, 3BCH

 

Setup)

 

 

 

 

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

 

 

 

 

 

 

 

Chapter 1

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Page 34
Image 34
Acer 270 manual Parallel Port, USB Port, PCMCIA Port, System Board Major Chips, Keyboard