PC87338 Datasheet

IC型號(hào)：
PC87338
PDF描述：
ACPI 1.0 and PC98/99 Compliant SuperI/O
文件大小：
1311.81KB
PDF頁數(shù)：
221頁
芯片廠家：
NSC

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PC87338/PC97338 ACPI 1.0 and PC98/99 Compliant SuperI/O

November 1998

PC87338/PC97338

ACPI 1.0 and PC98/99 Compliant SuperI/O

General Description

The PC97338 is a fully ACPI 1.0 and PC98/99 com-

pliant, ISA based Super I/O. It is functionally compat-

ible with the PC87338. It includes a Floppy Disk

Controller (FDC), two Serial Communication Control-

lers (SCC) for UART and Infrared support, one

IEEE1284 compatible Parallel Port, and two general

purpose Chip Select signals for game port support.

The device supports power management as well as

3.3V and 5V mixed operation making it particularly

suitable for notebook and sub-notebook applications.

The PC87338 and PC97338 are fully compliant to the

Plug and Play specifications included in the "Hard-

ware Design Guide for Microsoft Windows 95".

Differences between the PC87338 and PC97338 are

indicated in italics. These differences are summarized

in Appendix A.

Features

Meets ACPI 1.0 and PC98/99 requirements

Backward compatible with PC87338

100% compatibility with Plug and Play require-

ments specified in the 鈥淗ardware

Design Guide for

Microsoft Windows 95鈥?

ISA, EISA, and Micro-

Channel architectures

A special Plug and Play module includes:

鈥?/div>

Flexible IRQs, DMAs and base addresses

鈥?/div>

General Interrupt Requests (IRQs) that can be

multiplexed to the ten supported IRQs

Block Diagram

CS1,0

Configuration Input

Signals

Serial Interface

Serial Fast IR

Interface Interface

General

Chip Select

Configuration

Registers

Interrupt

and DMA

SCC1

(16550 UART)

SCC2

(16550 UART +

INFRARED)

Micro-

processor

Address

Data and

Control

Plug and Play

Support

Power-

Down

Logic

IEEE1284

Parallel Port

High Current Driver

Floppy Disk

Controller (FDC)

with

Digital Data

Separator (DDS)

Floppy

Drive

Interface

(Enhanced 8477)

Floppy

Drive

Interface

DMA IRQ IRQ Input

Channels

Signals

Control

Data

Handshake

TRI-STATE

廬

is a registered trademark of National Semiconductor Corporation.

IBM

廬

, MicroChannel

廬

, PC-AT

廬

and PS/2

廬

are registered trademarks of International Business Machines Corporation.

Microsoft

廬

and Windows

廬

are registered trademarks of Microsoft Corporation.

漏

1998 National Semiconductor Corporation

www.national.com

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