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P
1999 National Semiconductor Corporation
General Description
The PC87363, a member of National Semiconductor’s 128-
pin LPC SuperI/O family, introduces a Musical Instrument
Digital Interface (MIDI) Port and Game Port inputs for up to
two game devices. It also offers wake-up support for a wide
range of wake-up events, and new hardware and software
features to protect the system design. Like all members of
thisfamily,itisPC99andACPIcompliant,andoffersasingle-
chip solution to the most commonly used PC I/O peripherals.
The PC87363 also incorporates: Fan Speed Control and
Monitoring for two fans, a Floppy Disk Controller (FDC), a
Keyboard and Mouse Controller (KBC), a full IEEE 1284
Parallel Port, two enhanced Serial Ports (UARTs), one with
Infrared (IR) support, ACCESS.bus
Interface (ACB), Sys-
tem Wake-Up Control (SWC), General-Purpose Input/Out-
put (GPIO) support for a total of 49 ports and an enhanced
WATCHDOG
timer.
Outstanding Features
G
MIDI Port compatible with MPU-401 UART mode
G
Game Port inputs for up to two game devices
G
Extended Wake-Up support, including legacy/ACPI
power button support, direct power supply control in
response to wake-up events, power-fail recovery
G
Protection features, including chassis intrusion detection,
GPIO lock and pin configuration lock
G
Serial IRQ support (15 options)
G
Bus interface, based on Intel’s LPC Interface Specifi-
cation Revision 1.0, September 29th, 1997
G
Fan Speed Control and Monitor for two fans
G
ACCESS.bus Interface, SMBus physical layer compatible
G
49 GPIO Ports (37 standard, including 23 with Assert
IRQ/SMI/PWUREQs interrupts; 12 V
SB
-powered)
G
Blinking LEDs
G
128-pin PQFP Package
Block Diagram
System Wake-Up
Control
Serial Port 2
with IR
IEEE 1284
Parallel Port
Wake-Up
Events
Ports
Keyboard &
Mouse I/F
SCL
ACCESS.bus
Interface
Floppy Disk
Controller
Floppy Drive
Interface
Keyboard &
Mouse Controller
Serial
Interface Interface
Infrared
Bus
Interface
LPC
Interface
I/O
Ports
2 Control
Outputs
WATCHDOG
Timer
WDO
PWUREQ
Serial Port 1
Serial
Interface
V
DD
V
BAT
V
SB
Fan Speed
Control & Monitor
GPIO Ports
2 Monitor
Inputs
SDA
Serial
IRQ
Parallel Port
Interface
SMI
MIDI
Interface
MIDI Port
Game Port
Game Device
Interface
Power
Control
PRELIMINARY
January 10, 1999
PC87363
128-Pin LPC SuperI/O with MIDIandGamePorts,Extended
Wake-Up and Protection
ACCESS.bus is a registered trademark of Digital Equipment Corporation.
I2C is a registered trademark of Philips Corporation.
IBM, MicroChannel, PC-AT and PS/2 are registered trademarks of International Business Machines Corporation.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
TRI-STATE is a registered trademark of National Semiconductor Corporation.
WATCHDOG‰ is a trademark of National Semiconductor Corporation.
SMBus is a registered trademark of Intel Corporation.