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National Semiconductor Electronic Components Datasheet

PC97317 Datasheet

PC87317VUL/PC97317VUL SuperI/O Plug and Play Compatible with ACPI Compliant Controller/Extender

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- February 1998
PRELIMINARY
February 1998
PC87317VUL/PC97317VUL SuperI/O Plug and Play
Compatible with ACPI Compliant Controller/Extender
Highlights
General Description
The PC87317VUL/PC97317VUL are functionally identical
parts that offer a single-chip solution to the most commonly
used ISA, EISA and MicroChannel® peripherals. This fully
Plug and Play (PnP) compatible chip conforms to the Plug
and Play ISA Specification Version 1.0a, May 5, 1994, and
meets specifications defined in the PC97 Hardware Design
Guide. It features a Controller/Extender that is fully compli-
ant with Advanced Configuration and Power Interface (AC-
PI) Revision 1.0 requirements.
Note: All references to the PC87317VUL in this document
also refer to the PC97317VUL, unless otherwise specified.
References which are applicable to the PC97317VUL only
are italicized.
The PC87317VUL incorporates: an advanced Real-Time
Clock (RTC) device that provides both RTC timekeeping and
Advanced Power Control (APC) functionality, a Floppy Disk
Controller (FDC), a Keyboard and Mouse Controller (KBC),
two enhanced Serial Ports (UARTs) with Infrared (IR) sup-
port, a full IEEE 1284 Parallel Port, 24 General-Purpose In-
put/Output (GPIO) bit ports, three general-purpose chip
select signals that can be programmed for game port control
and a separate configuration register set for each module.
The PC87317VUL provides a LED drive output to comply
with PC97 specifications. The chip also provides support for
Power Management (PM), including a WATCHDOGtimer,
and standard PC-AT address decoding for on-chip functions.
The PC87317VUL Infrared (IR) interface complies with the
HP-SIR and SHARP-IR standards, and supports all four ba-
sic protocols for Consumer Remote Control circuitry (RC-5,
RC-5 extended, RECS80 and NEC).
Outstanding Features
Among the most advanced members of National Semicon-
ductor’s highly successful SuperI/O family, the PC87317VUL
offers:
q Full compatibility with ACPI Revision 1.0 requirements
q Compliancy with PC97 Hardware Design Guide speci-
fications, including PC97 LED support
q Advanced RTC, including timekeeping and APC func-
tionality
q 24 GPIO bit ports
q FDC, KBC, two enhanced UARTs, IR support, IEEE
1284 parallel port
Block Diagram
DMA
IRQ Channels
Data and
Control Ports
Control
Data Control
Floppy Drive
Interface
Plug and Play
(PnP)
Keyboard + Mouse
Controller (KBC)
(Logical Devices 0 & 1)
Real-Time Clock
(RTC and APC)
(Logical Device 2)
X-Bus
Floppy Disk
Controller (FDC)
(Logical Device 3)
µP Address
Data and
Control
IEEE 1284
Serial Port
Serial Port
General-Purpose I/O
Power
Parallel Port
with IR (UART2)
(UART1)
(GPIO) Registers Management (PM)
(Logical Device 4) (Logical Devices 5) (Logical Devices 6) (Logical Device 7) (Logical Device 8)
Data Handshake Serial Infrared
Interface Interface
Serial
Interface
I/O Ports
Control
TRI-STATE® and WATCHDOGare trademarks of National Semiconductor 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.
© 1998 National Semiconductor Corporation
1
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National Semiconductor Electronic Components Datasheet

PC97317 Datasheet

PC87317VUL/PC97317VUL SuperI/O Plug and Play Compatible with ACPI Compliant Controller/Extender

No Preview Available !

Highlights
Features
q 100% compatibility with PnP requirements specified in
the “Plug and Play ISA Specification”, ISA, EISA, and
MicroChannel architectures
q A special PnP module that includes:
Flexible IRQs, DMAs and base addresses that meet
the PnP requirements specified by Microsoft® in
their 1995 hardware design guide for Windows® and
PnP ISA Revision 1.0A
PnP ISA mode (with isolation mechanism – Wait for
Key state)
Motherboard PnP mode
q An FDC that provides:
A modifiable address that is referenced by a 16-bit
programmable register
Software compatibility with the PC8477, which con-
tains a superset of the floppy disk controller func-
tions in the µDP8473, the NEC µPD765A and the
N82077
13 IRQ channel options
Four 8-bit DMA channel options
16-byte FIFO
Burst and non-burst modes
A new, high-performance, internal, digital data sep-
arator that does not require any external filter com-
ponents
Support for standard 5.25" and 3.5" floppy disk
drives
Automatic media sense support
Perpendicular recording drive support
Three-mode Floppy Disk Drive (FDD) support
Full support for the IBM Tape Drive Register (TDR)
implementation of AT and PS/2 drive types
q A KBC with:
A modifiable address that is referenced by a 16-bit
programmable register, reported as a fixed address
in resource data
13 IRQ options for the Keyboard Controller
13 IRQ options for the Mouse Controller
An 8-bit microcontroller
Software compatibility with 8042AH and PC87911
microcontrollers
2 KB of custom-designed program ROM
256 bytes of RAM for data
Five programmable dedicated open drain I/O lines
for keyboard controller applications
Asynchronous access to two data registers and one
status register during normal operation
Support for both interrupt and polling
93 instructions
An 8-bit timer/counter
Support for binary and BCD arithmetic
Operation at 8 MHz,12 MHz or 16 MHz (programma-
ble option)
Customizing by using the PC87323VUL, which in-
cludes a RAM-based KBC, as a development plat-
form for keyboard controller code for the
PC87317VUL
q An RTC that has:
A modifiable address that is referenced by a 16-bit
programmable register
13 IRQ options, with programmable polarity
DS1287, MC146818 and PC87911 compatibility
242 bytes of battery backed up CMOS RAM in two
banks
Selective lock mechanisms for the RTC RAM
Battery backed up century calendar in days, day of
the week, date of month, months, years and century,
with automatic leap-year adjustment
Battery backed-up time of day in seconds, minutes
and hours that allows a 12 or 24 hour format and ad-
justments for daylight savings time
BCD or binary format for time keeping
Three different maskable interrupt flags:
Periodic interrupts - At intervals from 122 msec
to 500 msec
Time-of-Month alarm - At intervals from once per
second to once per Month
Updated Ended Interrupt - Once per second
upon completion of update
Separate battery pin, 2.4 V operation that includes
an internal UL protection resistor
2 µA maximum power consumption during power
down
Double-buffer time registers
q ACPI Controller/Extender that supports the require-
ments of the ACPI spec (rev 1.0):
Power Management Timer
Power Button
Real Time Clock Alarm
Suspend modes via software emulation
PnP SCI
Global Lock mechanism
General Purpose events
Date of Month Alarm
Century byte
q An APC that controls the main power supply to the sys-
tem, using open-drain output, as follows:
Power turned on when:
The RTC reaches a pre-determined wake-up centu-
ry, date and time selection
A high to low transition occurs on the RI input signals
of the UARTs
A ring pulse or pulse train is detected on the RING
input signal
A SWITCH input signal indicates a Switch On event
with a debounce-protection
Any one of seven programmable Power Manage-
ment external trigger events occur
Powered turned off when:
A SWITCH input signal indicates a Switch Off event
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2


Part Number PC97317
Description PC87317VUL/PC97317VUL SuperI/O Plug and Play Compatible with ACPI Compliant Controller/Extender
Maker National Semiconductor
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