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PC87382-VBH Datasheet

  • PC87382-VBH

  • LPC-to-LPC Switch for Docking Stations, with Fast Infrared P...

  • 783.86KB

  • 72頁(yè)

  • NSC

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PC87382 LPC-to-LPC Switch for Docking Stations, with Fast Infrared Port, Serial Port and GPIOs
December 2003
Revision 1.2
PC87382
LPC-to-LPC Switch for Docking Stations, with Fast
Infrared Port, Serial Port and GPIOs
General Description
The PC87382, a member of the National Semiconductor LPC
SuperI/O family, is targeted for a wide range of portable ap-
plications. The PC87382 is PC2001 and ACPI compliant, and
features an LPC-to-LPC Switch with hot plugability, Fast In-
frared port (FIR, IrDA 1.1 compliant), Serial Port, and Gener-
al-Purpose Input/Output (GPIO) support for a total of eight
ports.
The PC87382 enables glueless implementation of an LPC-
to-LPC Switch between the motherboard LPC bus and the
Docking Station, and supports hot insertion and hot removal.
Outstanding Features
q
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
LPC bus interface, based on Intel鈥檚
LPC Interface
Speci鏗乧ation
Revision 1.1, August 2002 (supports
CLKRUN signal)
Fast Infrared port
PC2001 and ACPI Revision 2.0 compliant
Serial IRQ support (15 options)
Protection features, including GPIO lock and pin con-
鏗乬uration lock
Eight GPIO ports, including with 鈥渁ssert IRQ鈥?capability
XOR Tree and TRI-STATE
餂?/div>
device pins (or ICT) test-
ability modes.
5V tolerant and back-drive protected pins (except LPC
bus pins)
48-pin LQFP package
q
q
q
q
q
q
q
q
q
System Block Diagram
I/O
Ports
South Bridge
LPC Bus
Portable
Platform
Docking
Station
PC87382
DCLKOUT
Docking LPC Bus
TPM
Embedded
Controller
Serial
Interface
Infrared
Interface
Docking
SIO
National Semiconductor and TRI-STATE
錚?/div>
are registered trademarks of National Semiconductor Corporation.
All other brand or product names are trademarks or registered trademarks of their respective holders.
漏2003 National Semiconductor Corporation
www.national.com

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