WPCN385L 查看數據表（PDF） - Winbond

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WPCN385L

LPC-to-LPC Switch, Fast Infrared Port, Serial Port and GPIOs

Winbond 

Product Brief

December 2006

Revision 1.0

WPCN385L

LPC-to-LPC Switch, Fast Infrared Port, Serial Port and GPIOs

General Description

The WPCN385L, a member of the Winbond LPC SuperI/O

family, is targeted for a wide range of portable applications.

The WPCN385L is PC2001 and ACPI compliant, and fea-

tures an LPC-to-LPC Switch with hot plugability, a Fast Infra-

red port (FIR, IrDA 1.1 compliant), Serial Port and General-

Purpose Input/Output (GPIO) support for a total of 18 ports.

The WPCN385L enables glueless implementation of an

LPC-to-LPC Switch between the motherboard LPC bus and

the Docking Station, and supports hot insertion and hot re-

moval.

Outstanding Features

■ Pin and software compatible with the Winbond 87382

■ LPC-to-LPC Switch with hot plugability, enables LPC

devices in the Docking Station to be connected to the

Main LPC Bus, thus reducing the number of signals re-

quired through the Docking Station connector

■ Fast Infrared Port (FIR)

■ Serial Port

■ LPC bus interface, based on Intel’s LPC Interface

Specification Revision 1.1, August 2002 (supports

CLKRUN and LPCPD signals)

■ PC2001 and ACPI Revision 3.0 compliant

■ 18 GPIO ports, including 11 with IRQ assertion capa-

bility

■ Two testability modes (XOR Tree and TRI-STATE®

device pins).

■ 5V tolerant and back-drive protected pins (except LPC

bus pins)

■ 48-pin LQFP package

System Block Diagram

South Bridge

I/O

Ports

LPC Bus

WPCN385L

TPM

(WPCT200)

EC

(WPC876xL)

Serial

Interface

FIR

Interface

Portable

Platform

Docking

Station

Docking LPC Bus

DCLKOUT

SIO

(WPCN8738xU,

8739x)

© 2006 Winbond Electronics Corporation

www.winbond.com

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