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PC87391-VJG Datasheet

  • PC87391-VJG

  • 100-Pin LPC SuperI/O Devices for Portable Applications

  • 148頁

  • NSC

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PC87391, PC87392, PC87393, PC87393F 100-Pin LPC SuperI/O Devices for Portable Applications
PRELIMINARY
September 2000
Revision 1.41
PC87391, PC87392, PC87393, PC87393F
100-Pin LPC SuperI/O Devices for Portable Applications
General Description
National Semiconductor鈥檚 PC8739x family of LPC SuperI/O
devices is targeted for a wide range of portable applications.
PC99 and ACPI compliant, the PC8739x family features
an X-Bus Extension for read and write operations over the
X-Bus, a full IEEE 1284 Parallel Port with a Parallel Port Mul-
tiplexer (PPM) for external Floppy Disk Drive (FDD) support,
a Musical Instrument Digital Interface (MIDI) port, and a
Game port. Like all National LPC SuperI/O devices, the
PC8739x offers a single-chip solution to the most commonly
used PC I/O peripherals.
The PC8739x family also incorporates: a Floppy Disk Con-
troller (FDC), two enhanced Serial Ports (UARTs), one with
Fast Infrared (FIR, IrDA 1.1 compliant), General-Purpose
Input/Output (GPIO) support for a total of 32 ports, Interrupt
Serializer for Parallel IRQs and an enhanced WATCH-
DOG鈩?timer.
The following features apply to the PC87393F. The feature
lists for other PC8739x devices may differ. See the table on
page 3 for a list of features for each device.
Outstanding Features
q
q
X-Bus Extension for read and write operations
LPC bus interface, based on Intel鈥檚
LPC Interface Spec-
ification
Rev. 1.01, February 1999 (supports CLKRUN
and LPCPD signals) and Intel FWH transactions
PC99 and ACPI compliant
Serial IRQ support (15 options)
Interrupt Serializer (four Parallel IRQs to Serial IRQ)
PPM for external FDD signal support
MIDI interface compatible with MPU-401 UART mode
Game port inputs for up to two joysticks
Protection features, including GPIO lock and pin con-
鏗乬uration lock
32 GPIO ports (16 standard, 16 with Assert IRQ/SMI)
5V tolerant and back-drive protected pins (except LPC
bus pins)
100-pin TQFP Package
q
q
q
q
q
q
q
q
q
q
Block Diagram
Parallel Port\
Floppy Drive Interface
Floppy Drive
Interface
Floppy Disk
Controller
PPM
LPC Serial
Interface IRQ SMI
Bus
Interface
Parallel
IRQs
PC87393 / PC87393F
Serial
Interface
Serial Infrared
Interface Interface
Serial Port 2
with FIR
I/O
Ports
Serial Port 1
GPIO Ports
IEEE 1284
Parallel Port
Interrupt
Serializer
V
DD
Wake-Up
Control
WATCHDOG
Timer
X-Bus
Extension
Game Port
MIDI Port
PWUREQ
WDO
X-Bus Interface
Game Device
Interface
MIDI
Interface
National Semiconductor is a registered trademark of National Semiconductor Corporation.
All other brand or product names are trademarks or registered trademarks of their respective holders.
漏2000 National Semiconductor Corporation
www.national.com

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