PC87365 Datasheet, PDF (1/215 Pages) National Semiconductor (TI) – 128-Pin LPC SuperI/O with System Hardware Monitoring

PRELIMINARY
November 2000
Revision 2.01
PC87365
128-Pin LPC SuperI/O with System Hardware Monitoring
General Description
The PC87365, a member of National Semiconductor’s 128-
pin LPC SuperI/O family, features National’s new System
Hardware Monitoring capability. The PC87365 is PC99 and
ACPI compliant, and offers a single-chip solution to the most
commonly used PC I/O peripherals.
System Hardware Monitoring provides minimum power con-
sumption and maximum operating efficiency within the system
environment. It integrates National’s Voltage Level Monitor
(VLM) which monitors system voltages using 8-bit Analog to
Digital (A/D) conversion, seven analog input channels and
V_REF input, and National’s diode input Temperature Sensor
for full, PC system thermal control.
The PC87365 also incorporates: Fan Speed Control and
Monitor (FSCM) for three fans, extended wake-up support
for a wide range of wake-up events, system design protection
features, a Floppy Disk Controller (FDC), a Keyboard and
Mouse Controller (KBC), ACCESS.bus^® Interface (ACB),
System Wake-Up Control (SWC), General-Purpose In-
put/Output (GPIO) support for 40 ports, Interrupt Serializer
for Parallel IRQs, an enhanced WATCHDOG Timer (WDT),
a full IEEE 1284 Parallel Port and two enhanced Serial Ports
(UARTs), one with Infrared (IR) support.
Outstanding Features
q _{System Hardware Monitoring including:}
— Diode-based Temperature Sensor (TMS)
— Voltage Level Monitor (VLM) with VID inputs
q _{Extended Wake-Up support, including legacy/ACPI}
power button support, direct power supply control in
response to wake-up events, power-fail recovery
q _{Protection features, including I/O access lock, chassis}
hood lock/unlock, chassis intrusion detection, GPIO lock
and pin configuration lock
q _{Fan Speed Control and Monitor for three fans}
q _{Serial IRQ support (15 options)}
q _{Interrupt Serializer (11 Parallel IRQs to Serial IRQ)}
q _{Bus interface, based on Intel’s LPC Interface Specifi-}
cation Revision 1.0, September 29th, 1997
q _{ACCESS.bus Interface, SMbus}® _{physical layer compatible}
q _{40 GPIO Ports (29 standard, including 15 with Assert}
IRQ/SMI/PWUREQs interrupts; 11 V_SB powered)
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 _Analog
Diode
Interface
Interface Interface IRQ _{SMI Inputs} V_REF Interface
Serial Port 1
Serial Port 2
with IR
GPIO Ports
Floppy Disk IEEE 1284
Controller ^{Parallel Port}
Bus
Interface
System
Hardware
Monitoring
AV _DD
V_DD
V_BdAT
V_SB
System Wake-Up ACCESS.bus
Control
Interface
Power Wake-Up _{PWUREQ SCL SDA}
Control Events
WATCHDOG
Fan Speed
Keyboard &
Timer
Control & Monitor Mouse Controller
WDO
3 Control 3 Monitor Keyboard & Ports
Outputs Inputs Mouse I/F
Interrupt
Serializer
Parallel
IRQs
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