PC87360 Datasheet, PDF (1/168 Pages) National Semiconductor (TI) – 128-Pin LPC SuperI/O with Protection and Extensive GPIO Support

PRELIMINARY
January 10, 1999
PC87360
128-Pin LPC SuperI/O with Protection and Extensive
GPIO Support
General Description
The PC87360 is the first member of National Semiconduc-
tor’s 128-pin SuperI/O family to support the Low Pin Count
(LPC) interface. It provides features to protect the system
design, and supports 45 GPIO ports, many with Assert
IRQ/SMI/PWUREQ capability. The PC87360 is PC99 and
ACPI compliant, and offers a single-chip solution to the
most commonly used PC I/O peripherals.
The PC87360 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, an ACCESS.bus^® Interface (ACB),
System Wake-Up Control (SWC), Interrupt Serializer for
Parallel IRQs and an enhanced WATCHDOG™ timer.
Outstanding Features
q _{Bus interface, based on Intel’s LPC Interface Specifi-}
cation Revision 1.0, September 29th, 1997
q _{Protection features, including I/O access lock, GPIO}
lock and pin configuration lock
q _{45 GPIO Ports (37 standard, including 23 with Assert}
IRQ/SMI/PWUREQs interrupts; 8 V_SB-powered)
q _{Fan Speed Control and Monitor for two fans}
q _{Interrupt Serializer (11 Parallel IRQs to Serial IRQ)}
q _{Serial IRQ support (15 options)}
q _{ACCESS.bus Interface, compatible with SMbus physi-}
cal layer
q _{Blinking LEDs}
q _{128-pin PQFP Package}
Block Diagram
Serial
Serial Infrared
Interface Interface Interface
I/O
Ports
Floppy Drive Parallel Port LPC Serial
Interface
Interface Interface IRQ SMI
Serial Port 1
Serial Port 2
with IR
GPIO Ports
Floppy Disk
Controller
IEEE 1284
Parallel Port
Bus
Interface
V_DD
V_BAT
V_SB
System Wake-Up ACCESS.bus
Control
Interface
WATCHDOG
Fan Speed
Keyboard &
Timer
Control & Monitor Mouse Controller
Interrupt
Serializer
Wake-Up PWUREQ SCL SDA
Events
WDO
2 Control 2 Monitor _{Keyboard Ports}
Outputs Inputs _{& Mouse I/F}
Parallel
IRQs
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.
© 1999 National Semiconductor Corporation
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